WO2008038806A1 - Antipruritic agent - Google Patents

Antipruritic agent Download PDF

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Publication number
WO2008038806A1
WO2008038806A1 PCT/JP2007/069110 JP2007069110W WO2008038806A1 WO 2008038806 A1 WO2008038806 A1 WO 2008038806A1 JP 2007069110 W JP2007069110 W JP 2007069110W WO 2008038806 A1 WO2008038806 A1 WO 2008038806A1
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Prior art keywords
bht
weight
antipruritic agent
present
antipruritic
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PCT/JP2007/069110
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French (fr)
Japanese (ja)
Inventor
Shigeki Sawamura
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Kobayashi Pharmaceutical Co., Ltd.
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Publication of WO2008038806A1 publication Critical patent/WO2008038806A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/045Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
    • A61K31/05Phenols
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/04Antipruritics

Definitions

  • the present invention relates to an antipruritic agent excellent in itching suppression effect.
  • “Itching” is defined as "a sensation that causes the skin to break down! / ,! Symptoms associated with itching include a variety of symptoms such as atopic dermatitis, rash, insect bite, dry skin, and hypersensitive skin. Depending on the condition, antihistamines, local anesthetics, moisturizing Agents are used. However, they did not have enough satisfaction for the applicator, such as it took time to take effect!
  • Patent Document 1 discloses an external preparation for skin containing natural fats and oils and an antioxidant. Such external preparations for skin generally contain about 0.001 to 1% of methylhydroxytoluene as a preservative, stabilizer, antioxidant and the like. However, it was not known that butylhydroxytoluene itself has an itching inhibitory effect.
  • Patent Document 1 JP 2000-159678
  • the main object of the present invention is to provide an antipruritic agent capable of effectively suppressing itching such as insect hypersensitivity skin.
  • BHT ptylhydroxytoluene
  • the present invention provides the following antipruritic agents.
  • Item 1 An antipruritic agent containing ptylhydroxytoluene (hereinafter referred to as BHT) as an active ingredient.
  • BHT ptylhydroxytoluene
  • Item 2 The antipruritic agent according to Item 1, wherein BHT is formulated in a dissolved state of 1.5% by weight in 100% by weight of the preparation.
  • Item 3 The antipruritic agent according to Item 2, wherein BHT is blended in a solid state.
  • Item 4 The antipruritic agent according to Item 3, wherein 7.5 to 40% by weight of BHT in a solid state is blended.
  • Item 5. The antipruritic agent according to Item 3 or 4, wherein the particle size of BHT in a solid state is 1000 m or less.
  • Item 6 Any one of Items 3 to 5, wherein BHT having a particle size of less than 350, BHT having a particle size of 350 to 500, BHT having a particle size of 50; The antipruritic agent according to crab.
  • the antipruritic agent of the present invention contains BHT as an active ingredient.
  • BHT exerts an antipruritic effect, and in particular, in the presence of both dissolved and solid BHT, solid BHT provides physical stimulation to the affected area in addition to the dissolved BHT antipruritic action. Because it can be used, it has immediate effect on suppressing itching. In general, when the itchy part is physically stimulated, the itching tends to be further enhanced.
  • the antipruritic agent of the present invention can suppress so-called itch reversal and has an excellent antipruritic effect. is there.
  • itch refers to "a sense that causes the idea of wanting to break the skin” as described above.
  • the antipruritic agent of the present invention is characterized mainly by containing BHT as an active ingredient.
  • BHT a component, production method, application and the like of the antipruritic agent of the present invention will be described.
  • the antipruritic agent of the present invention contains BHT as an active ingredient.
  • Ptylhydroxytoluene is a compound having a white crystal shape and is also called dibutylhydroxytoluene, but both refer to the same compound ([(CH 3) 2 C] 2 CH 3 (CH 2) 3 OH)).
  • BHT traditionally makeup It is blended for uses such as antioxidants and stabilizers for foods, pharmaceuticals, foods and the like.
  • BHT commercially available ones can be used.
  • butyl hydroxytoluene (Sanei Chemical Co., Ltd.), dibutylhydroxytoluene (Eastman Chemica Norre Japan Co., Ltd., Ueno Pharmaceutical Co., Ltd.) API Corporation, Sumitomo Chemical Co., Ltd., Nagase Sangyo Co., Ltd., JGC Universal Co., Ltd., Mitsubishi Wel Pharma Co., Ltd.).
  • the blending amount of BHT in the present invention is not particularly limited, but it is 1.5% by weight or more in 100% by weight of the dissolved BHT, preferably 2 to about 15% by weight, more preferably 5 to about 15% by weight, more preferably 7.5 to about 15% by weight.
  • a particularly excellent antipruritic effect can be obtained and the preparation can be made stable.
  • the BHT is present in a solid state so that it is solid when applied to the affected area.
  • the state of BHT can give an appropriate physical stimulus to the affected area, replace itching with a feeling of irritation, and exert an excellent antipruritic effect.
  • “replacing itching with a sense of irritation” refers to making the skin sensation feel a stimulus other than “itching” (for example, itching) in the short term (instantaneously).
  • the particle diameter of the BHT is about 1000 m or less, preferably (about 1000 to 50 mm 111, more preferably (about 1000 to 00 mm). More preferably, it is about 1000 to about 180 m, where BHT having each particle diameter can be obtained by pulverizing BHT in a mortar or the like and then applying it to a sieve having each diameter.
  • BHT having a particle diameter of less than 350 111, BH having a particle diameter of 350 to 500 111, BH having a particle diameter of 501 to;
  • Preferred combinations include, for example, (a) 501 to; BHT having a particle size of about 1000 Hm and BHT having a particle size of about 350 to 500 ⁇ m (B) A combination of BHT having a particle size of less than 350 m and BHT having a particle size of about 350 to 500 ⁇ m.
  • the blending ratio of BHT having each particle size is appropriately set as long as the substitution effect on the irritating feeling of itchiness can be exhibited.
  • BHT having a particle size of about 501 to 1000 m is set to 0.
  • the amount of BHT in the solid state of the antipruritic agent of the present invention is about 7.5 to 40% by weight, preferably 8 to 100% by weight in consideration of the antipruritic effect and the stability as the preparation. It is about 35% by weight, more preferably about 10-30% by weight.
  • the total amount of BHT in the antipruritic agent of the present invention is about 1.5% by weight or more, preferably about 7.5% by weight or more, more preferably about 9 to 45% by weight, and still more preferably 10 to 35%. It is about 10% by weight, particularly preferably about 10 to 30% by weight. With such a blending amount, the itching suppression effect of the present invention can be exerted more remarkably and can be made stable as a preparation.
  • the antipruritic agent of the present invention is blended with alcohol as necessary in addition to the BHT.
  • the alcohol can be used to dissolve BHT.
  • BHT can be dissolved by adding more than about 3 parts by weight of alcohol to 1 part by weight of BHT.
  • the alcohol used in the present invention is not particularly limited as long as it is generally used in the fields of cosmetics and pharmaceuticals.
  • Lower alcohol having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms, such as butanol, propanol, isopropanol, butanol, isobutanol; propylene glycol, dipropylene glycol, glycerin, 1,3-butylene glycol, butylene glycol, concentrated glycerin
  • polyhydric alcohols such as polyethylene glycol, maltitol, mannitol and sorbitol. These may be used alone or in combination of two or more.
  • the lower alcohol may be anhydrous or hydrated.
  • (hydrous) ethanol, absolute ethanol, and isopropanol are preferably used.
  • the blending amount of the alcohol in the antipruritic agent of the present invention is not particularly limited as long as the effects of the present invention are not impaired, but for example, about 0 to 92% by weight, preferably about 5 to 92% by weight, and more preferably. It is about 5 to 86.2% by weight, more preferably about 5 to 61% by weight.
  • the amount of alcohol is about 3 parts by weight or less, preferably 2 parts by weight or less, more preferably 1 part by weight or less with respect to 1 part by weight of BHT in the preparation. It is desirable to do.
  • the antipruritic agent of the present invention may contain water, a water-soluble polymer, or the like, if necessary.
  • a water-soluble polymer the ability to use a conventionally known polymer, for example, carboxyvininole polymer, polyvinyl alcohol, polyvinyl methyl ether, polyvinylino pechetil cellulose, pullulan, agar, gelatin, alginic acid and its salt, carrageenan And gums (for example, guar gum, tamarind gum, locust bean gum, cara gum, tragacanth gum) and the like. These may be used alone or in combination of two or more.
  • the amount of water in the antipruritic agent of the present invention is, for example, about 0 to 87% by weight, preferably about 3 to 86.2% by weight, more preferably about 28 to 80% by weight;
  • the blending amount is, for example, about 0.5 to 5% by weight, preferably about 0.8 to 4% by weight, and more preferably about 1 to 3% by weight.
  • Typical formulation examples of the present invention 10 to 35 weight BHT 0/0, the Anorekonore 5-86.
  • the antipruritic agent of the present invention includes, in addition to the above, various components generally used in cosmetics, quasi-drugs, and pharmaceuticals, aqueous components, oily components, moisturizing components, excipients as necessary. Further, thickeners, preservatives, antioxidants, pH adjusters, carriers, fragrances, colorants, drugs and the like can be prepared in various dosage forms singly or in combination of two or more. Further, the antipruritic agent of the present invention may contain a known local anesthetic, anti-inflammatory agent, moisturizing agent, etc.
  • Local anesthetics such as in, diphenhydramine, amino aminoethyl benzoate, desittecitin; chlorfeniramine maleate, diphenhydramine, diphenhydramine hydrochloride, glycyrrhetinic acid, dicalcium glycyrrhizinate, monoammonium glycyrrhizinate, allantoin, methyl salicylate; 1 Refreshing agents such as menthol, dl-menthol, camphor, dl-camphor, menthyl lactate; moisturizers such as urea, salicylic acid, sodium hyaluronate; isopropylmethylphenol (IPMP), quaternary ammonium salts (benzalkonium chloride, chloride) Benzetonium etc.
  • IPMP isopropylmethylphenol
  • IPMP quaternary ammonium salts
  • Chlorhexidine into hydrochloric chlorine disinfectant such Surufuajiajin; nitric Okishikonazoru, butenafine hydrochloride, hydrochloric Amororufuin, hydrochloric Terubinafuin, antifungal agents such as lanoconazole; capsicum tincture, and the like thermal components such Kabusaishin.
  • the dosage form of the antipruritic agent of the present invention includes forces that can be prepared into a conventionally known dosage form according to the method of use and application, for example, ointments, lotions, gels, aerosols and the like.
  • the antipruritic agent of the present invention contains an appropriate amount of a base for obtaining a desired dosage form.
  • a base for obtaining a desired dosage form.
  • examples include, but are not limited to, paraffin, petrolatum, squalane, paraffin, white wax, plastibase, polyethylene glycolore, macrogonole, lauromacronore, silicone oil, silicon, polysorbate, polyoxyethylene hydrogenated castor oil, Oil bases such as olive oil, cottonseed oil, soybean oil, coconut oil; higher alcohols such as cetanol and stearyl alcohol; fatty acid esters (isopropyl myristate, sorbitan fatty acid esters, etc.)
  • the antipruritic agent of the present invention can be prepared by mixing the above components according to a conventionally known method. Conditions such as temperature in preparation, order of addition of each component, mixing time, etc. should be set as appropriate based on the common general technical knowledge in the field according to the physical or chemical properties of each component, concentration, instrument stress, etc. For example, the following method can be cited.
  • a water phase is prepared by dissolving a water-soluble component in water. Separately from the aqueous phase, the alcohol-soluble component and BHT are dissolved in alcohol to prepare the alcohol phase. The obtained aqueous phase and alcohol phase are stirred and mixed so as to be homogeneous, whereby the antipruritic agent of the present invention can be obtained. In addition, when blending BHT in a solid state, it can be further added after stirring and mixing.
  • the antipruritic agent of the present invention can be used as an antipruritic agent that reduces itching (itchiness), and the application target is not particularly limited as long as it is used for this purpose.
  • the application target of the antipruritic agent of the present invention include itchy symptoms such as rashes, insect bites, dry skin, and hypersensitive skin.
  • an appropriate amount of the antipruritic agent of the present invention may be spread over the itchy skin. By spreading it out, it is possible to suppress itching by reversing the action of BHT. Furthermore, when BHT is blended in a solid state, moderate physical irritation is involved, so it is possible to control the itching more quickly with the power S.
  • Table 1 shows the evaluation results.
  • CVP carboxybulle polymer
  • HPC hydroxypropylcellulose
  • PG propylene glycol
  • EDTA ethylenediaminetetraacetic acid
  • Comparative Example 3 did not have a shape-retaining property! /, Exhibited a liquid state, and Comparative Example 6 exhibited a cloudy ointment.
  • the antipruritic agent containing two kinds of particle sizes containing BHT in a solid state can exhibit a superior effect of replacing itching with a feeling of irritation, that is, an immediate effect of suppressing itching.
  • This force S was shown.
  • dissolved BHT when contained at a low concentration of 1% by weight in the preparation, it can be used in combination with BHT in a solid state when it is used in combination with a solid state BHT. It has been shown that the action of substituting the sensation with a sense of stimulation supplements the itching effect of dissolved BHT and exerts an excellent itching effect as a whole (Example 6).
  • Formulation examples:! -23 25 and 26 are gel preparations (ointments).
  • Formulation Example 24 is a viscous liquid preparation. Formulation Example 24 requires force S to be filled with a propellant and made into an aerosol.

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Abstract

It is intended to provide an antipruritic agent capable of suppressing pruritus such as insect bites or hypersensitive skin, and replacing it with a feeling of stimulation thereby to immediately suppress pruritus. The antipruritic agent contains butylhydroxytoluene as an active ingredient.

Description

明 細 書  Specification
鎮痒剤  Antipruritic
技術分野  Technical field
[0001] 本発明は、かゆみ抑制効果に優れた鎮痒剤に関する。  [0001] The present invention relates to an antipruritic agent excellent in itching suppression effect.
背景技術  Background art
[0002] 「かゆみ」は、「皮膚を搔破した!/、と!/、う観念を起こさせる感覚」と定義され、概ね不 快となる感覚である。「かゆみ」を伴う症状としては、例えばアトピー性皮膚炎、しっし ん、虫さされ、乾燥肌、知覚過敏肌等の多様なものがあり、その病態によって、抗ヒス タミン剤、局所麻酔剤、保湿剤等が使用されている。しかしながら、それらは、効力発 揮まで時間を要するなど、適用者に充分な満足が得られて!/、なかった。  [0002] "Itching" is defined as "a sensation that causes the skin to break down! / ,!" Symptoms associated with itching include a variety of symptoms such as atopic dermatitis, rash, insect bite, dry skin, and hypersensitive skin. Depending on the condition, antihistamines, local anesthetics, moisturizing Agents are used. However, they did not have enough satisfaction for the applicator, such as it took time to take effect!
[0003] この様な背景から、かゆみを短時間で効果的に抑制し得る鎮痒剤が求められて!/ヽ た。かゆみを抑制する目的で使用される鎮痒剤は、従来から数多く知られており、例 えば、特許文献 1には天然油脂と抗酸化剤を配合した皮膚外用剤が開示されている 。このような皮膚外用剤中には、保存剤、安定化剤、抗酸化剤等として一般的にプチ ルヒドロキシトルエンが 0· 0;!〜 1 %程度配合されている。しかしながら、ブチルヒドロ キシトルエン自体にかゆみ抑制作用があることは知られていなかった。  [0003] Against this background, an antipruritic agent that can effectively suppress itching in a short time has been demanded! Many antipruritic agents used for the purpose of suppressing itching are conventionally known. For example, Patent Document 1 discloses an external preparation for skin containing natural fats and oils and an antioxidant. Such external preparations for skin generally contain about 0.001 to 1% of methylhydroxytoluene as a preservative, stabilizer, antioxidant and the like. However, it was not known that butylhydroxytoluene itself has an itching inhibitory effect.
特許文献 1 :特開 2000— 159678  Patent Document 1: JP 2000-159678
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] 本発明は、虫さされ、知覚過敏肌等のかゆみを効果的に抑制することが可能な鎮 痒剤を提供することを主な目的とする。  [0004] The main object of the present invention is to provide an antipruritic agent capable of effectively suppressing itching such as insect hypersensitivity skin.
課題を解決するための手段  Means for solving the problem
[0005] 本発明者は、鋭意検討を重ねた結果、プチルヒドロキシトルエン (以下 BHTと略記 することがある)自体に鎮痒作用があり、 BHTを配合した製剤を皮膚に適用すると効 果的にかゆみを抑制できることを見出した。 BHTは化粧品等の外用剤に広く用いら れる成分であるが、専ら酸化防止、安定化等を期待して配合される成分であり、かゆ みの軽減を目的として用いることは全く想起されていな力 た。本発明は、このような 知見に基づき、さらに研究を重ねた結果、完成されたものである。 [0005] As a result of extensive investigations, the present inventors have found that ptylhydroxytoluene (hereinafter sometimes abbreviated as BHT) itself has an antipruritic action, and it is effective when it is applied to the skin with a preparation containing BHT. It was found that can be suppressed. BHT is a component that is widely used in external preparations such as cosmetics, but it is a component that is formulated exclusively for anti-oxidation and stabilization purposes, and it has never been recalled for the purpose of reducing itching. I was strong. The present invention As a result of further research based on the knowledge, it was completed.
[0006] 本発明は、以下の鎮痒剤を提供する。 [0006] The present invention provides the following antipruritic agents.
項 1.プチルヒドロキシトルエン(以下、 BHTと示す)を有効成分とする鎮痒剤。  Item 1. An antipruritic agent containing ptylhydroxytoluene (hereinafter referred to as BHT) as an active ingredient.
項 2. BHTが製剤 100重量%中に 1. 5重量%溶解状態で配合されている、項 1に記 載の鎮痒剤。  Item 2. The antipruritic agent according to Item 1, wherein BHT is formulated in a dissolved state of 1.5% by weight in 100% by weight of the preparation.
項 3. BHTが固体状態で配合されている、項 2に記載の鎮痒剤。  Item 3. The antipruritic agent according to Item 2, wherein BHT is blended in a solid state.
項 4. 固体状態の BHTが 7. 5〜40重量%配合されている、項 3に記載の鎮痒剤。 項 5. 固体状態の BHTの粒子径が 1000 m以下であることを特徴とする項 3又は 4 に記載の鎮痒剤。  Item 4. The antipruritic agent according to Item 3, wherein 7.5 to 40% by weight of BHT in a solid state is blended. Item 5. The antipruritic agent according to Item 3 or 4, wherein the particle size of BHT in a solid state is 1000 m or less.
項 6.粒子径 350 未満の BHT、粒子径 350〜500 の BHT、粒子径 50;!〜 1 000 mの BHTを 2種以上組み合わせて配合することを特徴とする項 3〜5のいず れかに記載の鎮痒剤。  Item 6. Any one of Items 3 to 5, wherein BHT having a particle size of less than 350, BHT having a particle size of 350 to 500, BHT having a particle size of 50; The antipruritic agent according to crab.
発明の効果  The invention's effect
[0007] 本発明の鎮痒剤は、 BHTを有効成分として含有するものである。 BHTは鎮痒効果 を発揮し、特に、溶解状態と固体状態の両方の BHTを存在させることにより、溶解状 態の BHTの鎮痒作用に加えて、固体状態の BHTが患部に物理的な刺激を与えるこ とができるのでかゆみの抑制に即効性がある。一般的に、かゆい部分を物理的に刺 激すると、より一層かゆみが増強される傾向がある力 本発明の鎮痒剤は、いわゆる かゆみのぶり返しを抑えることができ、優れた鎮痒効果を奏するものである。  [0007] The antipruritic agent of the present invention contains BHT as an active ingredient. BHT exerts an antipruritic effect, and in particular, in the presence of both dissolved and solid BHT, solid BHT provides physical stimulation to the affected area in addition to the dissolved BHT antipruritic action. Because it can be used, it has immediate effect on suppressing itching. In general, when the itchy part is physically stimulated, the itching tends to be further enhanced. The antipruritic agent of the present invention can suppress so-called itch reversal and has an excellent antipruritic effect. is there.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0008] 本発明において「かゆみ」とは、前述のように「皮膚を搔破したいという観念を起こさ せる感覚」を指す。 [0008] In the present invention, "itch" refers to "a sense that causes the idea of wanting to break the skin" as described above.
[0009] 本発明の鎮痒剤は、有効成分として BHTを含有することを主な特徴としている。以 下、本発明の鎮痒剤の各成分、製造方法、適用等について説明する。  [0009] The antipruritic agent of the present invention is characterized mainly by containing BHT as an active ingredient. Hereinafter, each component, production method, application and the like of the antipruritic agent of the present invention will be described.
[0010] (1)ブチルヒドロキシトノレェン(BHT)  [0010] (1) Butylhydroxytonolene (BHT)
本発明の鎮痒剤は、 BHTを有効成分として含有する。プチルヒドロキシトルエンは 、白色結晶の形状を有する化合物であり、ジブチルヒドロキシトルエンとも呼ばれるが 、両者は同じ化合物([ (CH ) C] C H (CH ) OH)を指す。 BHTは、従来、化粧 料、医薬品、食品等の酸化防止剤、安定化剤等の用途で配合されている。 The antipruritic agent of the present invention contains BHT as an active ingredient. Ptylhydroxytoluene is a compound having a white crystal shape and is also called dibutylhydroxytoluene, but both refer to the same compound ([(CH 3) 2 C] 2 CH 3 (CH 2) 3 OH)). BHT, traditionally makeup It is blended for uses such as antioxidants and stabilizers for foods, pharmaceuticals, foods and the like.
[0011] BHTとしては、商業的に入手可能なものを用いることができ、例えば、プチルヒドロ キシトルエン(三栄化工株式会社)、ジブチルヒドロキシトルエン (イーストマン ケミカ ノレ ジャパン株式会社、上野製薬株式会社、株式会社エーピーアイコーポレーション 、住友化学工業株式会社、長瀬産業株式会社、 日揮ユニバーサル株式会社、三菱 ゥエルファーマ株式会社)等が挙げられる。 [0011] As BHT, commercially available ones can be used. For example, butyl hydroxytoluene (Sanei Chemical Co., Ltd.), dibutylhydroxytoluene (Eastman Chemica Norre Japan Co., Ltd., Ueno Pharmaceutical Co., Ltd.) API Corporation, Sumitomo Chemical Co., Ltd., Nagase Sangyo Co., Ltd., JGC Universal Co., Ltd., Mitsubishi Wel Pharma Co., Ltd.).
[0012] 本発明における BHTの配合量は、とくに限定されないが、溶解状態の BHTで製剤 100重量%中に 1. 5重量%以上であり、好ましくは 2〜; 15重量%程度、より好ましく は 5〜; 15重量%程度、さらに好ましくは 7. 5〜; 15重量%程度である。溶解状態の B HTがこの範囲内であると、特に優れた鎮痒効果を得ることができるとともに製剤とし て安定なものにすることができる。  [0012] The blending amount of BHT in the present invention is not particularly limited, but it is 1.5% by weight or more in 100% by weight of the dissolved BHT, preferably 2 to about 15% by weight, more preferably 5 to about 15% by weight, more preferably 7.5 to about 15% by weight. When the dissolved BHT is within this range, a particularly excellent antipruritic effect can be obtained and the preparation can be made stable.
[0013] また、本発明において、溶解状態の BHTの配合量が少ない (例えば、 5重量%以 下)場合であっても、 BHTを固体状態で存在させることにより、患部へ塗布する際に 固体状態の BHTが患部に適度な物理的刺激を与え、かゆみを刺激感に置換し、優 れた鎮痒効果を発揮することができる。ここで、「かゆみを刺激感に置換する」とは、 短期的(瞬間的に)に皮膚感覚を「かゆみ」以外の刺激 (例えば、搔いた感じ)を感じ る状態にすることを指す。  [0013] In the present invention, even when the amount of BHT in a dissolved state is small (for example, 5% by weight or less), the BHT is present in a solid state so that it is solid when applied to the affected area. The state of BHT can give an appropriate physical stimulus to the affected area, replace itching with a feeling of irritation, and exert an excellent antipruritic effect. Here, “replacing itching with a sense of irritation” refers to making the skin sensation feel a stimulus other than “itching” (for example, itching) in the short term (instantaneously).
[0014] 本発明に使用される BHTは固体状態で配合する場合、 BHTの粒子径は 1000 m以下程度であり、好ましく (ま 1000〜50〃111程度、より好ましく (ま 1000〜 00〃 m 程度、さらに好ましくは 1000〜; 180 m程度である。ここで、各粒子径を有する BHT は、 BHTを乳鉢などで粉砕した後、各径を有する篩等に供することで得ることができ  [0014] When the BHT used in the present invention is blended in a solid state, the particle diameter of the BHT is about 1000 m or less, preferably (about 1000 to 50 mm 111, more preferably (about 1000 to 00 mm). More preferably, it is about 1000 to about 180 m, where BHT having each particle diameter can be obtained by pulverizing BHT in a mortar or the like and then applying it to a sieve having each diameter.
[0015] また、本発明においては異なる粒子径を有する固体状態の BHTを組み合わせて 用いることによって、より優れた効果が得られることから、 2種以上の粒子径を有する B HTを組み合わせて配合することが望ましぐ例えば、粒子径 350 111未満の BHT、 粒子径 350〜500 111の BH丁、粒子径 501〜; 1000 mの BH丁を 2種以上を糸且み 合わせて用いることができる。好ましい組み合わせとしては、例えば、(a) 501〜; 100 0 H m程度の粒子径を有する BHT及び 350〜500 μ m程度の粒子径を有する BHT の組み合わせ;(b) 350 m未満程度の粒子径を有する BHT及び 350〜500 μ m 程度の粒子径を有する BHTの組み合わせ等が挙げられる。 [0015] In the present invention, a more excellent effect can be obtained by using a combination of BHT in a solid state having different particle diameters. Desirably, for example, BHT having a particle diameter of less than 350 111, BH having a particle diameter of 350 to 500 111, BH having a particle diameter of 501 to; Preferred combinations include, for example, (a) 501 to; BHT having a particle size of about 1000 Hm and BHT having a particle size of about 350 to 500 μm (B) A combination of BHT having a particle size of less than 350 m and BHT having a particle size of about 350 to 500 μm.
[0016] 2種以上の粒子径を有する BHTを組み合わせて用いる場合、各粒子径を有する B HTの配合割合は、痒みの刺激感への置換作用を発揮し得る範囲であれば適宜設 定すること力できる力 例えば、上記(a)の組み合わせであれば、 350〜500 111程 度の粒子径を有する BHT1重量部とした場合、 501〜; 1000 m程度の粒子径を有 する BHTを 0. ;!〜 10重量部程度、好ましくは 0. 25-7. 5重量部程度、より好ましく は 0· 5〜5重量部程度;上記(b)の組み合わせであれば、 350〜500 111程度の粒 子径を有する BHT1重量部とした場合、 350 m未満程度の粒子径を有する BHT を、 0. ;!〜 10重量部程度、好ましくは 0. 25-7. 5重量部程度、より好ましくは 0. 5 〜 5重量部程度の割合で組み合わせて用いる。  [0016] When two or more kinds of BHT having a particle size are used in combination, the blending ratio of BHT having each particle size is appropriately set as long as the substitution effect on the irritating feeling of itchiness can be exhibited. For example, in the case of the combination (a) above, when 1 part by weight of BHT having a particle size of about 350 to 500 111 is used, BHT having a particle size of about 501 to 1000 m is set to 0. About 10 to 10 parts by weight, preferably about 0.25 to 7-5 parts by weight, more preferably about 0.5 to 5 parts by weight; with the combination (b) above, about 350 to 500 111 grains In the case of 1 part by weight of BHT having a child diameter, BHT having a particle diameter of less than 350 m is about 0.;! To about 10 parts by weight, preferably about 0.25-7. 5 parts by weight, more preferably 0. Used in combination at a ratio of about 5 to 5 parts by weight.
[0017] 本発明の限定的解釈を望むものではないが、本発明の鎮痒剤に粒子径が不均一 な BHTを配合することによって、さまざまな刺激感を与えることができ、より顕著に本 発明の効果が奏されると考えられる。  [0017] Although a limited interpretation of the present invention is not desired, various stimuli can be given by blending BHT with a non-uniform particle size into the antipruritic agent of the present invention, and the present invention is more prominent. It is thought that the effect of.
[0018] 本発明の鎮痒剤における固体状態の BHTの配合量は、鎮痒効果と製剤としての 安定性を考慮して、製剤 100重量%中に 7. 5〜40重量%程度、好ましくは 8〜35重 量%程度、より好ましくは 10〜30重量%程度である。  [0018] The amount of BHT in the solid state of the antipruritic agent of the present invention is about 7.5 to 40% by weight, preferably 8 to 100% by weight in consideration of the antipruritic effect and the stability as the preparation. It is about 35% by weight, more preferably about 10-30% by weight.
[0019] また、本発明の鎮痒剤における BHTの総量は、約 1. 5重量%以上、好ましくは約 7 . 5重量%以上、より好ましくは 9〜45重量%程度、さらに好ましくは 10〜35重量% 程度、とくに好ましくは 10〜30重量%程度である。このような配合量であれば、本発 明のかゆみの抑制効果がより顕著に発揮され、かつ製剤として安定したものとするこ と力 Sできる。  [0019] The total amount of BHT in the antipruritic agent of the present invention is about 1.5% by weight or more, preferably about 7.5% by weight or more, more preferably about 9 to 45% by weight, and still more preferably 10 to 35%. It is about 10% by weight, particularly preferably about 10 to 30% by weight. With such a blending amount, the itching suppression effect of the present invention can be exerted more remarkably and can be made stable as a preparation.
[0020] (2)その他の成分  [0020] (2) Other ingredients
本発明の鎮痒剤には、前記 BHTの他、必要に応じてアルコールが配合される。ァ ルコールは BHTを溶解する際に用いることができ、例えば、 BHT1重量部に対して、 アルコールを約 3重量部より多く配合することで BHTを溶解させることができる。  The antipruritic agent of the present invention is blended with alcohol as necessary in addition to the BHT. The alcohol can be used to dissolve BHT. For example, BHT can be dissolved by adding more than about 3 parts by weight of alcohol to 1 part by weight of BHT.
[0021] 本発明において使用されるアルコールとしては、化粧料、医薬品の分野において 一般的に使用されているものであれば特に限定されないが、例えば、メタノール、ェ タノール、プロパノール、イソプロパノール、ブタノール、イソブタノール等の炭素数 1 〜6、好ましくは炭素数 1〜3の低級アルコール;プロピレングリコール、ジプロピレン グリコール、グリセリン、 1 , 3—ブチレングリコール、ブチレングリコール、濃グリセリン 、ポリエチレングリコール、マルチトール、マンニトール、ソルビトール等の多価アルコ ールなどが例示される。これらを 1種単独で使用してもよぐ 2種以上を組み合わせて 用いてもよい。また、低級アルコールは、無水、含水の別を問わない。本発明におい ては、(含水)エタノール、無水エタノール、イソプロパノールを用いることが好ましい。 [0021] The alcohol used in the present invention is not particularly limited as long as it is generally used in the fields of cosmetics and pharmaceuticals. Lower alcohol having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms, such as butanol, propanol, isopropanol, butanol, isobutanol; propylene glycol, dipropylene glycol, glycerin, 1,3-butylene glycol, butylene glycol, concentrated glycerin And polyhydric alcohols such as polyethylene glycol, maltitol, mannitol and sorbitol. These may be used alone or in combination of two or more. The lower alcohol may be anhydrous or hydrated. In the present invention, (hydrous) ethanol, absolute ethanol, and isopropanol are preferably used.
[0022] 本発明の鎮痒剤におけるアルコールの配合量は、本発明の効果を損なわない限り 特に限定されないが、例えば、 0〜92重量%程度、好ましくは 5〜92重量%程度、よ り好ましくは 5〜86. 2重量%程度、さらに好ましくは 5〜61重量%程度である。ただ し、固体状態の BHTを含有させる場合は、製剤中の BHT1重量部に対して、アルコ ール約 3重量部以下、好ましくは 2重量部以下、より好ましくは 1重量部以下となるよう にすることが望ましい。 [0022] The blending amount of the alcohol in the antipruritic agent of the present invention is not particularly limited as long as the effects of the present invention are not impaired, but for example, about 0 to 92% by weight, preferably about 5 to 92% by weight, and more preferably. It is about 5 to 86.2% by weight, more preferably about 5 to 61% by weight. However, when BHT in a solid state is contained, the amount of alcohol is about 3 parts by weight or less, preferably 2 parts by weight or less, more preferably 1 part by weight or less with respect to 1 part by weight of BHT in the preparation. It is desirable to do.
[0023] さらに、本発明の鎮痒剤には、必要に応じて水、水溶性高分子等を配合してもよい 。水溶性高分子としては、従来公知のものを使用することができる力 例えばカルボ キシビニノレポリマー、ポリビニルアルコール、ポリビニルメチルエーテル、ポリビニノレピ シェチルセルロース、プルラン、寒天、ゼラチン、アルギン酸及びその塩、カラギーナ ン、ガム類(例えばグァーガム、タマリンドガム、ローカストビーンガム、カラャガム、トラ ガカントガム)等が挙げられる。これらを 1種単独で使用してもよぐ 2種以上を組み合 わせて用いてもよい。  [0023] Furthermore, the antipruritic agent of the present invention may contain water, a water-soluble polymer, or the like, if necessary. As the water-soluble polymer, the ability to use a conventionally known polymer, for example, carboxyvininole polymer, polyvinyl alcohol, polyvinyl methyl ether, polyvinylino pechetil cellulose, pullulan, agar, gelatin, alginic acid and its salt, carrageenan And gums (for example, guar gum, tamarind gum, locust bean gum, cara gum, tragacanth gum) and the like. These may be used alone or in combination of two or more.
[0024] 本発明の鎮痒剤における水の配合量は、例えば、 0〜87重量%程度、好ましくは 3 〜86. 2重量%程度、より好ましくは 28〜80重量%程度;水溶性高分子の配合量は 、例えば、 0. 5〜5重量%程度、好ましくは 0. 8〜4重量%程度、より好ましくは 1〜3 重量%程度である。  [0024] The amount of water in the antipruritic agent of the present invention is, for example, about 0 to 87% by weight, preferably about 3 to 86.2% by weight, more preferably about 28 to 80% by weight; The blending amount is, for example, about 0.5 to 5% by weight, preferably about 0.8 to 4% by weight, and more preferably about 1 to 3% by weight.
[0025] 本発明の典型的な処方例としては、 BHTを 10〜35重量0 /0、ァノレコーノレを 5〜86. [0025] Typical formulation examples of the present invention, 10 to 35 weight BHT 0/0, the Anorekonore 5-86.
2重量%、水溶性高分子を 0. 8〜4重量%、水 3〜86. 2重量%含有する鎮痒剤が 例示される。 [0026] 本発明の鎮痒剤には、上記以外にも必要に応じて、化粧料、医薬部外品、医薬品 に一般的に用いられる各種成分、水性成分、油性成分、保湿成分、賦形剤、増粘剤 、防腐剤、酸化防止剤、 pH調整剤、担体、香料、色剤、薬剤等を単独又は 2種以上 を混合と組み合わせて各種剤型に調製することもできる。また、本発明の鎮痒剤には 、本発明の効果を損なわない範囲内で、公知の局所麻酔剤、消炎剤、保湿剤等を含 んでもよく、例えば、リドカイン、ジブ力イン、塩酸ジブ力イン、ジフェンヒドラミン、ァミノ 安息香酸ェチル、デシットテシチン等の局所麻酔剤;マレイン酸クロルフエ二ラミン、 ジフェンヒドラミン、塩酸ジフェンヒドラミン、グリチルレチン酸、グリチルリチン酸二カリ ゥム、グリチルリチン酸モノアンモニゥム、アラントイン、サリチル酸メチル等の消炎剤; 1 メントール、 dl—メントール、カンフル、 dl—カンフル、乳酸メンチル等の清涼化剤; 尿素、サリチル酸、ヒアルロン酸ナトリウム等の保湿剤;イソプロピルメチルフエノール( IPMP)、第四級アンモニゥム塩 (塩化ベンザルコニゥム、塩化べンゼトニゥムなど)、 塩酸クロルへキシジン、スルフアジアジン等の殺菌剤;硝酸ォキシコナゾール、塩酸 ブテナフィン、塩酸ァモロルフイン、塩酸テルビナフイン、ラノコナゾール等の抗真菌 剤;トウガラシチンキ、カブサイシン等の温熱成分等が挙げられる。 An antipruritic agent containing 2% by weight, 0.8 to 4% by weight of a water-soluble polymer, and 3 to 86.2% by weight of water is exemplified. [0026] The antipruritic agent of the present invention includes, in addition to the above, various components generally used in cosmetics, quasi-drugs, and pharmaceuticals, aqueous components, oily components, moisturizing components, excipients as necessary. Further, thickeners, preservatives, antioxidants, pH adjusters, carriers, fragrances, colorants, drugs and the like can be prepared in various dosage forms singly or in combination of two or more. Further, the antipruritic agent of the present invention may contain a known local anesthetic, anti-inflammatory agent, moisturizing agent, etc. within a range not impairing the effects of the present invention. Local anesthetics such as in, diphenhydramine, amino aminoethyl benzoate, desittecitin; chlorfeniramine maleate, diphenhydramine, diphenhydramine hydrochloride, glycyrrhetinic acid, dicalcium glycyrrhizinate, monoammonium glycyrrhizinate, allantoin, methyl salicylate; 1 Refreshing agents such as menthol, dl-menthol, camphor, dl-camphor, menthyl lactate; moisturizers such as urea, salicylic acid, sodium hyaluronate; isopropylmethylphenol (IPMP), quaternary ammonium salts (benzalkonium chloride, chloride) Benzetonium etc. , Chlorhexidine into hydrochloric chlorine disinfectant such Surufuajiajin; nitric Okishikonazoru, butenafine hydrochloride, hydrochloric Amororufuin, hydrochloric Terubinafuin, antifungal agents such as lanoconazole; capsicum tincture, and the like thermal components such Kabusaishin.
[0027] 本発明の鎮痒剤の剤型としては、使用方法や適用部分に従って従来公知の剤型 に調製することができる力 例えば、軟膏、ローション、ゲル、エアゾール剤等が挙げ られる。  [0027] The dosage form of the antipruritic agent of the present invention includes forces that can be prepared into a conventionally known dosage form according to the method of use and application, for example, ointments, lotions, gels, aerosols and the like.
[0028] 本発明の鎮痒剤には、所望の剤型とするための基剤が適当量含有される。例えば 、これに限られるものではないが、パラフィン、ワセリン、スクヮラン、パラフィン、白ロウ 、プラスチベース、ポリエチレングリコーノレ、マクロゴーノレ、ラウロマクロゴーノレ、シリコ ン油、シリコン、ポリソルベート、ポリオキシエチレン硬化ヒマシ油、ォリーブ油、綿実 油、大豆油、ヤシ油などの油系基剤;セタノール、ステアリルアルコールなどの高級ァ ルコール;脂肪酸エステル (ミリスチン酸イソプロピル、ソルビタン脂肪酸エステルなど [0028] The antipruritic agent of the present invention contains an appropriate amount of a base for obtaining a desired dosage form. Examples include, but are not limited to, paraffin, petrolatum, squalane, paraffin, white wax, plastibase, polyethylene glycolore, macrogonole, lauromacronore, silicone oil, silicon, polysorbate, polyoxyethylene hydrogenated castor oil, Oil bases such as olive oil, cottonseed oil, soybean oil, coconut oil; higher alcohols such as cetanol and stearyl alcohol; fatty acid esters (isopropyl myristate, sorbitan fatty acid esters, etc.)
)、高級脂肪酸塩型乳化剤、高度精製卵黄レシチン、大豆レシチン、精製大豆レシ チン、サラシミツロウ、プロピレンカーボネート、卵黄リン脂質、卵黄油、ヤシ油脂肪酸 、ラウリル硫酸ナトリウム、その他イオン性、非イオン性界面活性剤などの乳化剤;リン 酸、酢酸、塩酸、水酸化ナトリウムなどの pH調整剤;液化石油ガス、ジメチルエーテ ルなどの噴射剤などが挙げられる。 ), Higher fatty acid salt type emulsifier, highly purified egg yolk lecithin, soybean lecithin, refined soybean lecithin, white beeswax, propylene carbonate, egg yolk phospholipid, egg yolk oil, palm oil fatty acid, sodium lauryl sulfate, other ionic and non-ionic interfaces Emulsifiers such as activators; pH adjusters such as phosphoric acid, acetic acid, hydrochloric acid, sodium hydroxide; liquefied petroleum gas, dimethyl ether And propellants such as ru.
[0029] 本発明の鎮痒剤は、以上の成分を従来公知の方法に従って混合し、調製すること ができる。調製における温度、各成分の添加の順番、混合時間等の条件は、各成分 の物理的又は化学的性質、濃度、機器の応力等に応じ、当該分野の技術常識に基 づいて適宜設定することができる力 S、例えば次の方法が挙げられる。  [0029] The antipruritic agent of the present invention can be prepared by mixing the above components according to a conventionally known method. Conditions such as temperature in preparation, order of addition of each component, mixing time, etc. should be set as appropriate based on the common general technical knowledge in the field according to the physical or chemical properties of each component, concentration, instrument stress, etc. For example, the following method can be cited.
[0030] 水溶性成分を水に溶解して水相を調製する。水相とは別に、アルコール溶解性成 分及び BHTをアルコールに溶解してアルコール相を調製する。得られた水相及びァ ルコール相を均質になるように攪拌混合し、本発明の鎮痒剤を得ることができる。ま た、固体状態の BHTを配合する場合は、攪拌混合後にさらに添加することができる。  [0030] A water phase is prepared by dissolving a water-soluble component in water. Separately from the aqueous phase, the alcohol-soluble component and BHT are dissolved in alcohol to prepare the alcohol phase. The obtained aqueous phase and alcohol phase are stirred and mixed so as to be homogeneous, whereby the antipruritic agent of the present invention can be obtained. In addition, when blending BHT in a solid state, it can be further added after stirring and mixing.
[0031] 本発明の鎮痒剤は、かゆみ(搔痒感)を軽減する鎮痒剤として使用することができ、 この目的において使用されるのであれば適用対象は特に限定されない。本発明の鎮 痒剤の適用対象としては、例えば、しっしん、虫さされ、乾燥肌、知覚過敏肌等のか ゆみを伴う症状が挙げられる。  [0031] The antipruritic agent of the present invention can be used as an antipruritic agent that reduces itching (itchiness), and the application target is not particularly limited as long as it is used for this purpose. Examples of the application target of the antipruritic agent of the present invention include itchy symptoms such as rashes, insect bites, dry skin, and hypersensitive skin.
[0032] 本発明の鎮痒剤を前記のかゆみの軽減を目的として使用する場合は、皮膚のかゆ い部分に本発明の鎮痒剤の適量を塗り広げればよい。塗り広げることによって、 BH Tの鎮痒作用により、かゆみをぶりかえすことなく抑制することができる。さらに固体状 態で BHTを配合した場合には適度な物理的な刺激が伴うためにさらに素早くかゆみ を才卬制すること力 Sでさる。  [0032] When the antipruritic agent of the present invention is used for the purpose of reducing the itching, an appropriate amount of the antipruritic agent of the present invention may be spread over the itchy skin. By spreading it out, it is possible to suppress itching by reversing the action of BHT. Furthermore, when BHT is blended in a solid state, moderate physical irritation is involved, so it is possible to control the itching more quickly with the power S.
実施例  Example
[0033] 以下に実施例等を示して本発明をより詳細に説明するが、本発明はこれらに限定さ れなレ、。  Hereinafter, the present invention will be described in more detail with reference to examples and the like, but the present invention is not limited thereto.
[0034] 下記表 1に示される処方に基づいて各種成分を配合し、製剤を得た。具体的には、 水を攪拌しながらカルボキシビュルポリマーを徐々に添加し、さらに攪拌混合して水 相を調製した。水相とは別に、アルコール(無水エタノール及びプロピレングリコール )、 BHT (ブチルヒドロキシトルエン:三栄化工株式会社)及びトリエタノールアミンを 攪拌混合してアルコール相を調製した。前記で得られた水相を攪拌しながら、アルコ ール相を徐々に添加し、さらに攪拌混合することによって各製剤を得た。固体状態の BHTを配合する場合は、水相とアルコール相を攪拌した後に添加し、さらに攪拌混 合して製した。ここで、 BHTは、乳鉢中で粉砕し、各径を有する篩で分類したものを 用いた。 [0034] Based on the formulation shown in Table 1 below, various components were blended to obtain a preparation. Specifically, the carboxybule polymer was gradually added while stirring water, and further stirred and mixed to prepare an aqueous phase. Apart from the aqueous phase, alcohol (anhydrous ethanol and propylene glycol), BHT (butylhydroxytoluene: Sanei Chemical Co., Ltd.) and triethanolamine were mixed with stirring to prepare an alcohol phase. While stirring the aqueous phase obtained above, the alcohol phase was gradually added and further stirred and mixed to obtain each preparation. When blending BHT in a solid state, add it after stirring the aqueous phase and alcohol phase, and then stir and mix. Made together. Here, BHT used was crushed in a mortar and classified by a sieve having each diameter.
[0035] 得られた製剤を常温 (約 25°C)にて 1週間保存した後、その性状を目視により確認 し、安定性を評価した。具体的には、分散性 (BHT粒子の沈降や団粒化 (粒子の凝 集)の有無)、保型性 (粘度低下等の初期性状と比較した場合の明らかな変化の有無 )、 BHT粒子が固体の性状を維持しているかどうか(軟化、溶解の有無)について確 認した。これらの性状のいずれにも変化が無かった場合は〇とし、いずれか 1つでも 変化が確認された場合は Xとした。  [0035] After the obtained preparation was stored at room temperature (about 25 ° C) for 1 week, its properties were visually confirmed to evaluate the stability. Specifically, dispersibility (presence / absence of BHT particle sedimentation / aggregation (aggregation of particles)), shape retention (presence / absence of obvious changes compared to initial properties such as viscosity reduction), BHT particles It was confirmed whether the solid maintained its solid state (softening or dissolution). When there was no change in any of these properties, it was marked as ◯, and when any one of the changes was confirmed, it was marked as X.
[0036] さらに、安定性の評価結果が「〇」の製剤を、虫さされ等によるかゆみを訴える被験 者 10名の患部に塗布し、各製剤の効果を 5段階で評価した。評価は、非常にかゆい 場合を 1点、全くかゆくない場合を 5点とした。また、製剤の適用しやすさ (塗布しにく い場合を 1点、非常に塗布しやすい場合を 5点)、かゆみの刺激感 (搔いた感じ)への 置換 (刺激感に置換されにくい場合を 1点、刺激感に置換されやすい場合を 5点)に 関する評価も併せて行った。なお、かゆみの刺激感への置換についての評価は、実 施例 1〜 6と比較例 1〜 2の製剤を使用した場合のみ評価した。  [0036] Furthermore, a preparation with a stability evaluation result of “◯” was applied to the affected area of 10 subjects complaining of itching caused by insect bites and the like, and the effect of each preparation was evaluated in five stages. The evaluation was 1 point for very itchy and 5 points for no itch. Also, ease of application of the preparation (1 point when it is difficult to apply, 5 points when it is very easy to apply), replacement with itching irritation (smooth feeling) (when it is difficult to replace irritation) In addition, an evaluation was also made on 1 point and 5 points on the case of being easily replaced by a feeling of irritation. In addition, the evaluation about the substitution of an itch to the irritation was evaluated only when the preparations of Examples 1 to 6 and Comparative Examples 1 to 2 were used.
[0037] 各被験者による評点を合計し、合計点が 45〜50点:◎、 35〜45点:〇、 25〜35 点;△、 25点未満: Xとした。  [0037] The scores by each subject were totaled, and the total score was 45-50 points: ◎, 35-45 points: ◯, 25-35 points; Δ, less than 25 points: X.
[0038] これらの評価結果を表 1に示す。表中、 CVPはカルボキシビュルポリマー、 HPCは ヒドロキシプロピルセルロース、 PGはプロピレングリコール、 EDTAはエチレンジアミ ン四酢酸を表す。  [0038] Table 1 shows the evaluation results. In the table, CVP stands for carboxybulle polymer, HPC stands for hydroxypropylcellulose, PG stands for propylene glycol, and EDTA stands for ethylenediaminetetraacetic acid.
[0039] なお、比較例 3は保型性を有さな!/、液状を呈し、比較例 6は白濁した軟膏状を呈し た。  [0039] It should be noted that Comparative Example 3 did not have a shape-retaining property! /, Exhibited a liquid state, and Comparative Example 6 exhibited a cloudy ointment.
[0040] [表 1]
Figure imgf000010_0001
[0040] [Table 1]
Figure imgf000010_0001
[0041] 表 1に示される結果より、 BHT (溶解状態)を含有する製剤(特に実施例 7〜11)は 、比較例 4〜6等に含まれる鎮痒作用を有する化合物と同等以上の優れた痒み止め 効果を発揮することが示された。さらに、溶解状態の BHTに加えて固体状態の BHT を含有する製剤(実施例 1〜6)は、かゆみ止め効果に加えて、かゆみを刺激感に置 換する作用にも優れていることが示された。すなわち、本発明における鎮痒剤は、即 効性かつ持続性のあるかゆみ抑制効果に優れて!/、ることが示された。特に 2種類の 粒子径を有する固体状態の BHTを含有する鎮痒剤(実施例 2〜6)は、より優れたか ゆみを刺激感に置換する作用、すなわち即効性のある痒み抑制効果を発揮し得るこ と力 S示された。また、溶解状態の BHTを製剤中に 1重量%と低濃度で含有した場合 、かゆみ抑制効果はみられな力、つたが(比較例 7)、固体状態の BHTと組み合わせて 用いることで、かゆみを刺激感に置換する作用が溶解状態の BHTによるかゆみ抑制 効果を補い、全体として優れたかゆみ抑制効果を発揮することが示された(実施例 6)[0041] From the results shown in Table 1, preparations containing BHT (dissolved state) (especially Examples 7 to 11) were superior to compounds having an antipruritic action contained in Comparative Examples 4 to 6 and the like. It has been shown to exert an anti-itching effect. Furthermore, in addition to the dissolved BHT, preparations containing solid BHT (Examples 1 to 6) have been shown to be excellent in the action of replacing itching with a feeling of irritation in addition to the anti-itching effect. It was done. That is, it was shown that the antipruritic agent according to the present invention is excellent in an effective and long-lasting itching suppression effect! In particular, the antipruritic agent containing two kinds of particle sizes containing BHT in a solid state (Examples 2 to 6) can exhibit a superior effect of replacing itching with a feeling of irritation, that is, an immediate effect of suppressing itching. This force S was shown. In addition, when dissolved BHT is contained at a low concentration of 1% by weight in the preparation, it can be used in combination with BHT in a solid state when it is used in combination with a solid state BHT. It has been shown that the action of substituting the sensation with a sense of stimulation supplements the itching effect of dissolved BHT and exerts an excellent itching effect as a whole (Example 6).
Yes
[0042] 一方、従来 BHTと同様に安定化剤、酸化防止剤として知られている固体、液体の 化合物を含有させた製剤(比較例 1及び 2)では、痒み止め効果は認められないばか り力、、かゆみを刺激感に置換する作用も有していな力 た。比較例 3に至っては、製 剤の安定性が悪ぐ実際に適用することができな力、つた。  [0042] On the other hand, preparations containing solid and liquid compounds known as stabilizers and antioxidants as in the case of BHT (Comparative Examples 1 and 2) must have no stagnation-preventing effect. The force did not have the effect of replacing itching with a feeling of irritation. In Comparative Example 3, the stability of the product was poor, and it was a force that could not be applied in practice.
[0043] 以下に処方例を示す。  [0043] Formulation examples are shown below.
[0044] [表 2] [0044] [Table 2]
〔〕0054 [] 0054
Figure imgf000012_0001
Figure imgf000012_0001
Figure imgf000013_0001
処方例:!〜 23 25および 26は、ゲル状製剤(軟膏剤)である。また、処方例 24は、 粘性の液状製剤である。処方例 24は、噴射剤とともに充填してエアゾール剤に製す ること力 Sでさる。
Figure imgf000013_0001
Formulation examples:! -23 25 and 26 are gel preparations (ointments). Formulation Example 24 is a viscous liquid preparation. Formulation Example 24 requires force S to be filled with a propellant and made into an aerosol.

Claims

請求の範囲 The scope of the claims
[1] プチルヒドロキシトルエン(以下、 BHTと示す)を有効成分とする鎮痒剤。  [1] An antipruritic agent containing ptylhydroxytoluene (hereinafter referred to as BHT) as an active ingredient.
[2] BHTが製剤 100重量%中に 1. 5重量%溶解状態で配合されている、請求項 1に 記載の鎮痒剤。 [2] The antipruritic agent according to claim 1, wherein BHT is formulated in a dissolved state of 1.5% by weight in 100% by weight of the preparation.
[3] BHTが固体状態で配合されている、請求項 2に記載の鎮痒剤。  [3] The antipruritic agent according to claim 2, wherein BHT is blended in a solid state.
[4] BHTが製剤 100重量%中に 7. 5〜40重量%固体状態で配合されている、請求項 [4] The BHT is formulated in a solid state of 7.5 to 40% by weight in 100% by weight of the preparation.
3に記載の鎮痒剤。 The antipruritic agent according to 3.
[5] 固体状態の BHTの粒子径が 1000 m以下であることを特徴とする請求項 3又は 4 に記載の鎮痒剤。  [5] The antipruritic agent according to claim 3 or 4, wherein the particle size of BHT in a solid state is 1000 m or less.
[6] 粒子径 350 111未満の BH丁、粒子径 350〜500 mの BH丁、粒子径 501〜; 100 [6] Particle size 350 BH less than 111, particle size 350-500 m BH, particle size 501-;
0 mの BHTを 2種以上組み合わせて配合することを特徴とする請求項 3〜5のいず れかに記載の鎮痒剤。 6. The antipruritic agent according to any one of claims 3 to 5, wherein two or more kinds of 0 m BHT are blended in combination.
PCT/JP2007/069110 2006-09-29 2007-09-28 Antipruritic agent WO2008038806A1 (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS63255224A (en) * 1987-04-11 1988-10-21 Teikoku Seiyaku Kk Antipruritic plaster
JPS63255219A (en) * 1987-04-11 1988-10-21 Teikoku Seiyaku Kk Antipruritic plaster
JPH04103526A (en) * 1990-08-21 1992-04-06 Taisho Pharmaceut Co Ltd Aerosol for skin cooling
JPH07126158A (en) * 1993-10-27 1995-05-16 Taisho Pharmaceut Co Ltd Crotamiton-blended external preparation
JP2001233764A (en) * 2000-02-22 2001-08-28 Hisamitsu Pharmaceut Co Inc Antipruritic agent comprising n-substituted-o-toluidine derivative
WO2003047609A1 (en) * 2001-12-05 2003-06-12 Johnson & Johnson Limited A topical anti-itch formulation and a process for the preparation thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63255224A (en) * 1987-04-11 1988-10-21 Teikoku Seiyaku Kk Antipruritic plaster
JPS63255219A (en) * 1987-04-11 1988-10-21 Teikoku Seiyaku Kk Antipruritic plaster
JPH04103526A (en) * 1990-08-21 1992-04-06 Taisho Pharmaceut Co Ltd Aerosol for skin cooling
JPH07126158A (en) * 1993-10-27 1995-05-16 Taisho Pharmaceut Co Ltd Crotamiton-blended external preparation
JP2001233764A (en) * 2000-02-22 2001-08-28 Hisamitsu Pharmaceut Co Inc Antipruritic agent comprising n-substituted-o-toluidine derivative
WO2003047609A1 (en) * 2001-12-05 2003-06-12 Johnson & Johnson Limited A topical anti-itch formulation and a process for the preparation thereof

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