JPS6084225A - Eye drop - Google Patents

Eye drop

Info

Publication number
JPS6084225A
JPS6084225A JP19469983A JP19469983A JPS6084225A JP S6084225 A JPS6084225 A JP S6084225A JP 19469983 A JP19469983 A JP 19469983A JP 19469983 A JP19469983 A JP 19469983A JP S6084225 A JPS6084225 A JP S6084225A
Authority
JP
Japan
Prior art keywords
hyaluronic acid
salt
molecular weight
toxic
polymeric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19469983A
Other languages
Japanese (ja)
Inventor
Hiroko Shimizu
裕子 清水
Kazuo Takechi
武智 和男
Eiichi Hasegawa
栄一 長谷川
Masayuki Nishida
正行 西田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Tanabe Pharma Corp
Original Assignee
Green Cross Corp Japan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Green Cross Corp Japan filed Critical Green Cross Corp Japan
Priority to JP19469983A priority Critical patent/JPS6084225A/en
Publication of JPS6084225A publication Critical patent/JPS6084225A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:An eye drop containing a nontoxic salt of high-molecular weight hyaluronic acid having a specific molecular weight. CONSTITUTION:An eye drop, containing a nontoxic salt of high-molecular weight hyaluronic acid having 200,000-3,000,000 molecular weight in an amount of 0.01-10mg/ml, and diluted with water, e.g. sterilized purified water, physiological saline solution or another aqueous solvent, etc. or nonaqueous solvent, e.g. nonaqueous injection. An additive or another pharmaceutical, e.g. an antibiotic substance such as penicillin, streptomycin, etc. may be incorporated therewith. The nontoxic salt of the high-molecular weight hyaluronic acid has the activity of reducing the friction of the cornea and the conjunctiva and protecting the cornea against the exfoliation of the corneal epithelium by the friction with the cornea in blinking or delayed treatment of ulcer in oculopathies, e.g. hypolacrima or corneal ulcer, etc. Furthermore, the salt having the water retaining property has the activity of preventing the drying of the corneal surface and exfoliation of the corneal epithelium and accelerating the treatment of xerophthalmia.

Description

【発明の詳細な説明】 本発明は、20万〜300万の高分子ヒアルロン酸非毒
性塩(以下、単に高分子ヒアルロン酸非毒性塩ともいう
)を含む点眼剤に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to eye drops containing a non-toxic salt of polymeric hyaluronic acid (hereinafter also simply referred to as non-toxic salt of polymeric hyaluronic acid) of 200,000 to 3,000,000.

ヒアルロン酸非毒性塩は眼の硝子体、関節液、胴帯には
特に高濃度に含有されているほか、その他の組織中にも
普遍的に存在している生体成物である。このものの生体
内での存在息義としては組織構造の維持、機械的刺激に
対する緩衝作用(皮屑の弾力性、関節におりる潤滑性)
等があげられる。更に近年細胞表面にヒアルロン酸非毒
性塩に対する結合部位の存在が明らかにされてきており
、ヒアルロン酸非毒性塩が生体内での細胞の代aす1に
何らかの影響を示すことが示唆されている。
Non-toxic salts of hyaluronic acid are found in particularly high concentrations in the vitreous body of the eye, synovial fluid, and trunk girdle, and are also ubiquitous in other tissues. The reason why this substance exists in the living body is to maintain tissue structure and buffer against mechanical stimulation (elasticity of skin debris, lubricity in joints).
etc. can be mentioned. Furthermore, in recent years, the existence of binding sites for non-toxic salts of hyaluronic acid on the cell surface has been revealed, and it has been suggested that non-toxic salts of hyaluronic acid have some effect on cell function in vivo. .

ヒアルロン酸非毒性塩の用途としては、競走馬の関節炎
治療薬としての開発が行われており、スエーデン、フィ
ンランド、ノルウニ〜、フランス、イギリス、[1本に
おいて、その使用が許可されている。
Non-toxic hyaluronic acid salts are being developed as a treatment for arthritis in racehorses, and their use is permitted in Sweden, Finland, Noruni, France, and the United Kingdom.

本発明は高分子ヒアルロン酸非毒性塩を含む点眼剤であ
る。
The present invention is an eye drop containing a non-toxic salt of polymeric hyaluronic acid.

後記実験例から明らかなように、高分子ヒアルロン酸非
毒性塩は非ニユートン流体のパターンを示し、流動して
いない場合には高粘性物質とし゛この挙動を示すもので
ある。而して、高分子ヒアルロン酸非毒性塩を点眼した
場合、開瞼時は、角膜、粘膜表面上に高粘性物質として
留まり、瞬目時にば速やかに流動し、角膜と粘膜の摩擦
を少なくして、角膜と粘膜を保護する作用を示す。
As is clear from the experimental examples described later, the polymeric non-toxic salt of hyaluronic acid exhibits a non-Newtonian fluid pattern, and when it is not flowing, it behaves as a highly viscous substance. Therefore, when a non-toxic polymeric hyaluronic acid salt is instilled into the eye, it stays on the cornea and mucous membrane surface as a highly viscous substance when the eyelids are opened, and flows quickly when you blink, reducing friction between the cornea and mucous membrane. It has a protective effect on the cornea and mucous membranes.

従って、高分子ヒアルロン酸非毒性塩は、涙液減少症、
角膜潰瘍等の眼疾患に際して、瞬目時、角膜との摩擦に
より角膜表皮の脱落が起こったり、潰瘍の治療が遅延す
ることに対して、角膜と粘膜の摩擦を少なくし、角膜を
保護する作用を有する、さらに高分子ヒアルロン酸非毒
性塩は保水性を有するものであるところから、角膜表面
が乾燥するのを防止し、角膜表皮の脱落を阻止し、角膜
乾燥症の治療を早める作用を有するものである。
Therefore, polymeric hyaluronic acid non-toxic salts can be used to treat hypolacrimal
This product protects the cornea by reducing the friction between the cornea and mucous membranes, preventing the corneal epidermis from falling off due to friction with the cornea when blinking and delaying ulcer treatment when eye diseases such as corneal ulcers occur. Moreover, since the non-toxic polymeric hyaluronic acid salt has water-retaining properties, it has the effect of preventing the corneal surface from drying out, inhibiting the shedding of the corneal epidermis, and hastening the treatment of corneal xerosis. It is something.

高分子ヒアルロン酸非毒性塩の製造法としては、特開昭
58−37001号、58−573 ]、 9号、58
−8’48([号明細店等にその記載がある。
Methods for producing non-toxic polymeric hyaluronic acid salts include JP-A-58-37001, 58-573], 9, 58.
-8'48 (There is a description of this in the store, etc.)

本発明で使用される高分子ヒアルロン酸非毒性塩におり
る塩は、生理的に受けいれられるものであればよく、例
えばアルカリ金属塩(ナトリウム塩、カリウム塩など)
、アルカリ土類金属塩(カルシウム塩など)が例示され
る。また、高分子ヒアルロン酸非毒性塩は、高純度のも
のが好適であり、好ましくは高分子ヒアル1コン酸非毒
性塩に対する蛋白質混入率が1%以下のものが使用され
る。
The salt included in the non-toxic polymeric hyaluronic acid salt used in the present invention may be any physiologically acceptable salt, such as an alkali metal salt (sodium salt, potassium salt, etc.).
, alkaline earth metal salts (such as calcium salts). Furthermore, the non-toxic polymeric hyaluronic acid salt is preferably of high purity, and preferably one with a protein contamination rate of 1% or less with respect to the non-toxic polymeric hyaluronic acid salt is used.

本発明の点眼剤は、通常、高分子ヒアルロン酸非毒性塩
を水(滅菌絹製水、生理食塩水、その他の水性溶剤等)
、非水性溶剤(一般に非水性注射剤)で希釈することに
よって製剤化される。もちろん、通常の点眼剤の製造時
に配合される添加剤、さらには他の薬物(たとえば、ペ
ニシリン、ストレゾ1−マイシン等の抗生物質等)を配
合してもよい。
The eye drops of the present invention usually contain a non-toxic polymeric hyaluronic acid salt in water (sterile silk water, physiological saline, other aqueous solvent, etc.).
, formulated by diluting with a non-aqueous solvent (generally non-aqueous injection). Of course, additives that are usually added during the manufacture of eye drops and other drugs (for example, antibiotics such as penicillin and stresomicin) may also be added.

当該点眼剤におLjる高分子ヒアルr:1ン酸非毒性塩
の配合用は、jffl昂o、 01〜] (] mg/
m1程度である。
For the formulation of the polymeric hyaluric acid non-toxic salt in the eye drops, please use the following formula: 01~] (] mg/
It is about m1.

本発明点眼剤は、通常結膜嚢内に直接点眼される。本発
明点眼剤における高分子ヒアルロン醋非毒性塩の点眼量
は、疾患の種類、その症状、年齢などによって、適宜当
業者が選択A−ればよい。
The eye drops of the present invention are usually instilled directly into the conjunctival sac. The amount of the non-toxic salt of polymeric hyaluronic acid in the eye drops of the present invention can be selected by a person skilled in the art as appropriate depending on the type of disease, its symptoms, age, etc.

実験例1 〔高分子ヒアルロン酸非d′r性塩の非ニユ
ートン流体性を示す実験〕 検体として高分子ヒアルロン酸すトリウム塩を用いた。
Experimental Example 1 [Experiment showing non-Newtonian fluidity of non-d'r polymeric hyaluronic acid salt] A polymeric sodium hyaluronate salt was used as a specimen.

高分子ヒアルロン酸ナトリウム塩の粘度をウェルズ・ブ
ルックフィールドマイクロビスコメーター’RVTを使
用して測定した。また対照としてヒアルロン酸と同じく
ムコ多糖類の一種であるコン1−ロイチン硫!(10%
および5%)の粘度も測定した。コーン・プレートはC
’P−42とCP−52を使用し、測定温度は25℃と
した。その結果は第1図および第2図に示した通りであ
る。第1図(コーン・プレートはCP−52を使用、濃
度: 10mg/ml)は、各種分子量の高分子ヒアル
ロン酸ナトリウム塩のすり速度と、すり応力のW係を示
しているが、いずれの分子量のヒアルロン酸すトリウム
塩も典型的な非ニユートン流体のパターンを示している
。このことは高分子ヒアルロン酸ナトリウム塩が流動し
ていない場合は高粘性物質としての挙動を示すが、流動
している時は粘性の低い物質としての挙動を示すことを
意味している。ただヒアルロン酸ナトリウム塩でも、よ
り高分子のものの方がより非ニュー トン流体としての
特性が強いことがわかる。また、第2図(コーン・プレ
ー目まCP−42を使用)Gこ示すようもこ高分子ヒア
ルロン酸ナトリウム塩ば非ニユートン流体の特性を示す
のに対して、コンドロイチン硫酸はずり速度とずり応力
とがほぼ比例関係にあり、ニュー1−ン流体としての挙
動を示すことがわかる。
The viscosity of the polymeric sodium hyaluronate salt was measured using a Wells Brookfield Micro Viscometer'RVT. As a control, con-1-leucine sulfate, which is a type of mucopolysaccharide like hyaluronic acid! (10%
and 5%) were also measured. Cone plate is C
'P-42 and CP-52 were used, and the measurement temperature was 25°C. The results are shown in FIGS. 1 and 2. Figure 1 (CP-52 was used as the cone plate, concentration: 10 mg/ml) shows the sliding speed and W factor of the sliding stress of polymeric sodium hyaluronate salts of various molecular weights. The thorium hyaluronate salt also shows a typical non-Newtonian fluid pattern. This means that when the polymeric sodium hyaluronate salt is not flowing, it behaves as a highly viscous substance, but when it is flowing, it behaves as a low viscosity substance. However, even among sodium hyaluronate salts, it can be seen that higher molecular weight ones have stronger properties as non-Newtonian fluids. In addition, while the elastic polymer sodium hyaluronate shown in Fig. 2 (using Cone-Pray CP-42) shows the characteristics of a non-Newtonian fluid, chondroitin sulfate shows the properties of shear rate and shear stress. It can be seen that there is a nearly proportional relationship and that the behavior is similar to that of a new fluid.

実験例2 〔高分子ヒアルロン酸非毒性塩の毒性〕 ・
 ゝ 検体として高分子ヒアルロン酸すI・リウム塩を用いた
Experimental example 2 [Toxicity of non-toxic salt of polymeric hyaluronic acid] ・
ゝPolymeric hyaluronic acid I.Rium salt was used as a specimen.

マウス、ラット各群10匹での高分子ヒアルI:Jン酸
ナトリウム塩の急性毒性試験(LD5Q)を行い、その
結果を第1表に示した。ここで使用した高分子ヒアルロ
ン酸ナトリウム塩は分子量160万で、高分子ヒアルロ
ン酸すトリウム塩に対する蛋白質混入率は0.5重量%
であった。投与に当たっては高分子ヒアルロン酸プ用・
リウム塩が粘稠であるため5mg/mlに生理食塩水に
溶解したちのを用いた。第1表から明らかなようQこ高
分子ヒアルロン酸ナトリウム塩は極めて毒性の低いもの
である。
An acute toxicity test (LD5Q) of polymeric hyalic acid sodium salt was conducted on 10 mice and 10 rats in each group, and the results are shown in Table 1. The polymer sodium hyaluronate salt used here has a molecular weight of 1.6 million, and the protein contamination rate with respect to the polymer sodium hyaluronate salt is 0.5% by weight.
Met. When administering, please use polymeric hyaluronic acid.
Since lithium salt is viscous, a solution of 5 mg/ml dissolved in physiological saline was used. As is clear from Table 1, Q polymeric sodium hyaluronate salt has extremely low toxicity.

第1表 L D So (mg/m+)実験例3 (点
眼毒性) 分子量約160万の高分子ヒアルロン酸す1−リウム塩
(高分子ヒアルロン酸す1〜リウム塩に対する蛋白質混
入率0.5重量%)を生理食塩水にて2mg/mlに溶
解したものを検体とし、白色家兎を用いてDraize
法に従って試験を行った。対照薬剤として生理食塩水を
用いた。その結果高分子ヒアルロン酸すl−IJウム塩
含有点眼剤の毒性は生理食塩水群と同程度であった。
Table 1 L D So (mg/m+) Experimental Example 3 (Eye Drop Toxicity) Polymeric hyaluronic acid mono-lithium salt with a molecular weight of approximately 1.6 million (protein contamination rate with respect to polymeric hyaluronic acid mono-lithium salt 0.5 weight) %) dissolved in physiological saline to 2 mg/ml was used as a sample, and a white rabbit was used as a Draize.
Tests were conducted in accordance with the law. Physiological saline was used as a control drug. As a result, the toxicity of the eye drops containing polymeric hyaluronic acid l-IJium salt was comparable to that of the physiological saline group.

製剤例1 次の組成より成る点眼剤を常套手段によつ−ご調製した
Formulation Example 1 Eye drops having the following composition were prepared in a conventional manner.

高分子ヒアルロン酸ナトリウム塩 (分子@ l 60万) 2g 塩化ナトリウム 8.2g リン酸−す1−リウム・2水塩 0. ’09 gリン
酸ニナ1−リウム・12水塩 1.11 gペニシリン
G 50,000単位 硫酸スト【ノブトマイシン 50mg 以上の組成物を范溜水で全量を] 、 000m I 
とした。
Polymeric hyaluronic acid sodium salt (molecules @ 600,000) 2g Sodium chloride 8.2g Monolithium phosphate dihydrate 0. '09 g Ni-1-lium phosphate decahydrate 1.11 g Penicillin G 50,000 units Stosulfate [nobutomycin 50 mg or more of the composition was made up of the total amount with boiled water], 000 m I
And so.

製剤例2 次の組成より成る点眼剤を常套手段によゲどl!II製
した。
Formulation Example 2 Administer eye drops with the following composition by conventional means! II.

高分子ヒアルロン酸ナトリウム塩 (分子量50万) ] Ol! 塩化ブー 1・ リ ウ 1. 8.5 gペニシリン
G 100,00Of!位 以上の組成物を蒸溜水で全量を1 、000m l と
した(当該点眼剤のpHは6.5〜8である)。
High molecular weight hyaluronate sodium salt (molecular weight 500,000) ] Ol! Chloride 1. Liu 1. 8.5 g Penicillin G 100,00Of! The total volume of the composition was made up to 1,000 ml with distilled water (the pH of the eye drops is 6.5 to 8).

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、各種分子量の高分子ヒアルロン酸す1−リウ
ム塩のずり速度とずり応力との関係を示す図であり、第
2図はコンドlコイチン硫酸を対照とした場合の高分子
ヒアルロン酸ナトリウム塩のすり速度とすり応力との関
係を示す図である。 1・・分子量220万の高分子ヒアル1コン酸ナトリウ
ム塩 2・・分子量120万の高分子ヒアルロン酸す1−リウ
ム塩 3・・分子量70万の高分子ヒアル(」ン酸すトリウム
塩 4・・分子量70万の高分子ヒアルロン酸ナトリウム塩
の1%生理食塩水溶液 5・・lO%コンドロイチン硫酸生理食糟水溶液 6・・5%コンドロイチン硫酸生理食塩水溶液手 続 
ネ市 正 別:(自発) 1・事件の表示 118’j05 B 年10月171
]差11!l/)Q’M’i+’!1lflJ旧−−−
F・、〜−−ユエー二=→≠ 2、発明の名称 点眼剤 3、補正をする者 事件との関係 特許出願人 ■541 住 所 大阪市東区平1!r町4]’[=153番地3
二1−ライフ平野町406号 電話(06) 227−1156 6、補正により増加する発明の数 7、補正の対象 第1図 第2図 手続ネiit正凹=(自発) 昭和58年12JJ2λ日 1、事件の表示 昭和58年特許願第194699号 2、発明の名称 点眼剤 3、補正をする者 事件との関係 特許出願人 氏名(名称) 清 水 裕 子 株式会社 ミトリ+字 4、代理人 ■541 住 所 大阪市東区平野町4丁目53番地3ニューライ
フ平野町406号 6、補正により増加する発明の数 7、補正の対象 明細書の「特許請求の範囲」の欄、及び(1+明細書第
1頁の[特許請求の範囲一1全文を別紙のとおりに訂正
する。 (2)同刊第7頁、第4行のrm8/mlJをl−+n
g/kgJにδI正する。 (別紙) 特許請求の範囲 (1)分子量が20万〜300万の高分子ヒアルロン酸
非毒性塩を含む点眼剤。 (2)高分子ヒアルロン酸非毒性塩の濃度が0.01〜
10mg/mlである特許請求の範囲第(1)項記載の
点眼剤。 (3)タンパク質混入率が1重量%以下である高分子ヒ
アルロン酸非毒性塩を使用することを特徴とする特許請
求の範囲第(1)項または第(2)項記載の点眼剤。
Figure 1 is a diagram showing the relationship between shear rate and shear stress for polymeric monolithium hyaluronate salts of various molecular weights, and Figure 2 shows the relationship between polymeric hyaluronic acid monolithium salts of various molecular weights and shear stress when chondol coitin sulfate is used as a control. FIG. 3 is a diagram showing the relationship between the rubbing speed and the rubbing stress of a sodium salt. 1. Polymer sodium hyaluronic acid salt with a molecular weight of 2.2 million 2. Polymer sodium hyaluronic acid salt with a molecular weight of 1.2 million 3. Polymer sodium hyaluronic acid salt with a molecular weight of 700,000 4.・1% physiological saline solution of high-molecular-weight sodium hyaluronate with a molecular weight of 700,000 5.10% chondroitin sulfate physiological saline solution 6.5% chondroitin sulfate physiological saline solution Procedure
Masaru Ne City: (Voluntary) 1.Indication of incident 118'j05 B October 171
] Difference 11! l/)Q'M'i+'! 1lflJ old ---
F・、~---Yueni=→≠ 2. Name of the invention Eye drops 3. Relationship with the amendment person case Patent applicant ■541 Address 1, Higashi-ku, Osaka! r town 4]'[=153 address 3
21-Life Hirano-cho 406 Telephone (06) 227-1156 6. Number of inventions increased by amendment 7. Subject of amendment Figure 1 Figure 2 Procedure Neiit positive concave = (spontaneous) 1980 12JJ2λ day 1 , Indication of the case Patent Application No. 194699 of 1982 2 Name of the invention Eye drops 3 Relationship with the case by the person making the amendment Patent applicant's name (name) Yuko Shimizu Co., Ltd. Mitri + character 4, Agent■ 541 Address: 4-53-3 Hirano-cho, Higashi-ku, Osaka-shi, New Life Hirano-cho 406-6, the number of inventions increased by 7, the "Claims" column of the specification subject to the amendment, and (1+specification) [The entire text of Claim 11 on page 1 is corrected as shown in the attached sheet. (2) rm8/mlJ on page 7, line 4 of the same publication is changed to
Correct δI to g/kgJ. (Attachment) Claims (1) Eye drops containing a non-toxic salt of polymeric hyaluronic acid with a molecular weight of 200,000 to 3,000,000. (2) Concentration of non-toxic polymeric hyaluronic acid salt is 0.01~
The eye drops according to claim (1), which has a concentration of 10 mg/ml. (3) The eye drops according to claim (1) or (2), which uses a non-toxic salt of polymeric hyaluronic acid with a protein content of 1% by weight or less.

Claims (1)

【特許請求の範囲】 fl1分子量が20万〜300万の高分子ヒアルロン酸
非毒性属塩を含む点眼剤。 (2)高分子ヒアルロン酸非毒性塩の濃度が0.01〜
10mg/mlである特許請求の範囲第(11項記載の
点眼剤。 (3)タンパク質混入率が1重量%以下である高分子ヒ
アルロン酸非毒性塩を使用することを特徴とする特許請
求の@四節(1)項またば第(2ン項記載の点1]Ji
f剤。
[Scope of Claims] An eye drop containing a non-toxic polymeric hyaluronic acid salt having a fl1 molecular weight of 200,000 to 3,000,000. (2) Concentration of non-toxic polymeric hyaluronic acid salt is 0.01~
10 mg/ml (eye drops according to claim 11). (3) A non-toxic salt of polymeric hyaluronic acid having a protein contamination rate of 1% by weight or less is used. Section 4 (1) or Section 4 (Point 1 in Section 2) Ji
f agent.
JP19469983A 1983-10-17 1983-10-17 Eye drop Pending JPS6084225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19469983A JPS6084225A (en) 1983-10-17 1983-10-17 Eye drop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19469983A JPS6084225A (en) 1983-10-17 1983-10-17 Eye drop

Publications (1)

Publication Number Publication Date
JPS6084225A true JPS6084225A (en) 1985-05-13

Family

ID=16328796

Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716224A (en) * 1984-05-04 1987-12-29 Seikagaku Kogyo Co. Ltd. Crosslinked hyaluronic acid and its use
US4863907A (en) * 1984-06-29 1989-09-05 Seikagaku Kogyo Co., Ltd. Crosslinked glycosaminoglycans and their use
JPH01238530A (en) * 1988-03-17 1989-09-22 Seikagaku Kogyo Co Ltd Remedy for cornea anterior epithelium layer injury
JPH01294633A (en) * 1988-05-23 1989-11-28 Fujisawa Pharmaceut Co Ltd Ophthalmic solution
JPH02164829A (en) * 1988-12-20 1990-06-25 Santen Pharmaceut Co Ltd Instillation containing hyaluronic acid
WO1991011992A1 (en) * 1990-02-13 1991-08-22 Zerega Gere S Di Peritoneal induced medicaments
WO2004076491A1 (en) * 2003-02-27 2004-09-10 Shiseido Co., Ltd. Medicinal composition for ophthal use containing acetylated hyaluronic acid
JP2009513586A (en) * 2005-10-26 2009-04-02 ソーラーティウム エンタープライゼズ リミテッド Ophthalmic pharmaceutical composition based on amino acids and sodium hyaluronate
US8501822B2 (en) 2006-06-28 2013-08-06 Rohto Pharmaceutical Co., Ltd. Ophthalmic composition containing alginic acid or salt thereof
JP2014167034A (en) * 2004-05-07 2014-09-11 Rohto Pharmaceut Co Ltd High-viscosity instillation
JP2014532641A (en) * 2011-11-01 2014-12-08 大塚製薬株式会社 An anterior eye disease therapeutic agent comprising rebamipide and a drug having a lacrimal fluid retention action
JP2018150297A (en) * 2017-03-09 2018-09-27 ロート製薬株式会社 Ophthalmic composition and method for imparting friction reduction action to the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141973A (en) * 1975-10-17 1979-02-27 Biotrics, Inc. Ultrapure hyaluronic acid and the use thereof
JPS6128503A (en) * 1983-10-11 1986-02-08 フイデイ−ア・ソシエタ・ペル・アチオニ Hyaluronic acid pharmacologically active fraction, manufacture and medicinal composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141973A (en) * 1975-10-17 1979-02-27 Biotrics, Inc. Ultrapure hyaluronic acid and the use thereof
US4141973B1 (en) * 1975-10-17 1989-08-08
JPS6128503A (en) * 1983-10-11 1986-02-08 フイデイ−ア・ソシエタ・ペル・アチオニ Hyaluronic acid pharmacologically active fraction, manufacture and medicinal composition

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716224A (en) * 1984-05-04 1987-12-29 Seikagaku Kogyo Co. Ltd. Crosslinked hyaluronic acid and its use
US4863907A (en) * 1984-06-29 1989-09-05 Seikagaku Kogyo Co., Ltd. Crosslinked glycosaminoglycans and their use
JPH01238530A (en) * 1988-03-17 1989-09-22 Seikagaku Kogyo Co Ltd Remedy for cornea anterior epithelium layer injury
JPH01294633A (en) * 1988-05-23 1989-11-28 Fujisawa Pharmaceut Co Ltd Ophthalmic solution
JPH02164829A (en) * 1988-12-20 1990-06-25 Santen Pharmaceut Co Ltd Instillation containing hyaluronic acid
WO1991011992A1 (en) * 1990-02-13 1991-08-22 Zerega Gere S Di Peritoneal induced medicaments
US6284744B1 (en) * 1990-02-13 2001-09-04 Gere S. Di Zerega Peritoneal induced medicaments
JP2004262777A (en) * 2003-02-27 2004-09-24 Shiseido Co Ltd Acetylated hyaluronic acid-containing ocular medicinal preparation
WO2004076491A1 (en) * 2003-02-27 2004-09-10 Shiseido Co., Ltd. Medicinal composition for ophthal use containing acetylated hyaluronic acid
US7943596B2 (en) 2003-02-27 2011-05-17 Shiseido Company, Ltd. Medicinal composition for ophthal use containing acetylated hyaluronic acid
JP2014167034A (en) * 2004-05-07 2014-09-11 Rohto Pharmaceut Co Ltd High-viscosity instillation
JP2009513586A (en) * 2005-10-26 2009-04-02 ソーラーティウム エンタープライゼズ リミテッド Ophthalmic pharmaceutical composition based on amino acids and sodium hyaluronate
US8501822B2 (en) 2006-06-28 2013-08-06 Rohto Pharmaceutical Co., Ltd. Ophthalmic composition containing alginic acid or salt thereof
JP2014532641A (en) * 2011-11-01 2014-12-08 大塚製薬株式会社 An anterior eye disease therapeutic agent comprising rebamipide and a drug having a lacrimal fluid retention action
JP2018150297A (en) * 2017-03-09 2018-09-27 ロート製薬株式会社 Ophthalmic composition and method for imparting friction reduction action to the same
JP2018168200A (en) * 2017-03-09 2018-11-01 ロート製薬株式会社 Method for producing ophthalmic composition, method for giving ophthalmic composition the action of reducing friction of contact lens, and method for giving ophthalmic composition the action of reducing sticking of contact lens to eye surface
JP2019034979A (en) * 2017-03-09 2019-03-07 ロート製薬株式会社 Use of combination for reducing friction in eye part, and method for producing ophthalmic composition

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