JPH01213228A - Aqueous suspension eye drop - Google Patents

Aqueous suspension eye drop

Info

Publication number
JPH01213228A
JPH01213228A JP63041572A JP4157288A JPH01213228A JP H01213228 A JPH01213228 A JP H01213228A JP 63041572 A JP63041572 A JP 63041572A JP 4157288 A JP4157288 A JP 4157288A JP H01213228 A JPH01213228 A JP H01213228A
Authority
JP
Japan
Prior art keywords
drug
water
aluminum
soluble
eye drop
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.)
Granted
Application number
JP63041572A
Other languages
Japanese (ja)
Other versions
JPH0796495B2 (en
Inventor
Takakazu Morita
森田 隆和
Tadashi Iso
磯 正
Yoichi Kawashima
洋一 河嶋
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.)
Santen Pharmaceutical Co Ltd
Original Assignee
Santen Pharmaceutical Co Ltd
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 Santen Pharmaceutical Co Ltd filed Critical Santen Pharmaceutical Co Ltd
Priority to JP63041572A priority Critical patent/JPH0796495B2/en
Publication of JPH01213228A publication Critical patent/JPH01213228A/en
Publication of JPH0796495B2 publication Critical patent/JPH0796495B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Medicinal Preparation (AREA)

Abstract

PURPOSE:To obtain an aqueous suspension eye drop, capable of enhancing redispersibility of a drug without irritancy ad having excellent effects, by blending a water-soluble aluminum salt with other ingredients. CONSTITUTION:The aimed substance obtained by adding a water-soluble alumi num salt to sterile purified water, as necessary, adding an isotonizing agent, buffer agent, surfactant, preservative, etc., and further a drug which is sparingly soluble in water to the resultant solution and suspending the drug therein. Clobetasone butyrate, fluorometholone, hydrocortisone acetate, dexamethasone, indomethacin, pirenoxine or pimaricin, etc., are exemplified as the drug. The water-soluble aluminum salt is aluminum chloride, aluminum sulfate, aluminum nitrate, etc., and the concentration thereof is preferably 0.005-1.0%. The aque ous suspension eye drop is administered in a an amount of one-several drops at a time in one-several divided portions a day.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は水溶性アルミニウム塩を配合することにより、
分散性の良い水性懸濁点眼剤を提供するものである。
Detailed Description of the Invention "Industrial Application Field" The present invention provides
The present invention provides an aqueous suspension eye drop with good dispersibility.

「従来技術及び発明が解決しようとする課題」水に対す
る溶解度の低い薬物を点眼用として製剤化する場合、薬
物を懸濁させた水性点眼剤とすることが考えられる。こ
のような水性懸濁点眼剤は長時間放置すると薬物が沈降
するため、点眼時には容器を振とうし再分散して用いな
ければならない。ところが、沈降した薬物がケーキング
などの2次凝集をおこすと容易に再分散しなくなり、点
眼時に長時間振とうしなければならない。
"Prior Art and Problems to be Solved by the Invention" When formulating a drug with low solubility in water as an eye drop, it is conceivable to formulate an aqueous eye drop in which the drug is suspended. If such aqueous suspension eye drops are left for a long time, the drug will settle, so the container must be shaken and redispersed before use. However, if the precipitated drug causes secondary aggregation such as caking, it cannot be easily redispersed, and the drug must be shaken for a long time when instilled into the eye.

再分散性を良くする方法の一つとして薬物の粒子サイズ
を大きくすることが考えられるが、点眼剤の場合大きな
粒子は眼に対する異物感が生じるという欠点がある。
One possible method for improving redispersibility is to increase the particle size of the drug, but in the case of eye drops, large particles have the disadvantage of causing a foreign body sensation to the eyes.

このため、分散性にすぐれた水性懸濁点眼剤を検討する
必要があった。
For this reason, it was necessary to consider an aqueous suspension eye drop with excellent dispersibility.

「課題を解決するための手段」 本発明者らは分散性のすぐれた水性M濁点成剤を鋭意検
討した結果、水溶性アルミニウム塩を配合することによ
り課題が解決できることを見い出した。
"Means for Solving the Problems" The inventors of the present invention have conducted intensive studies on aqueous M cloud point forming agents with excellent dispersibility, and have found that the problems can be solved by incorporating a water-soluble aluminum salt.

「発明の開示」 水性懸濁点眼剤は水に対する溶解度の低い薬物を製剤化
する時に用いられる。このよう表懸濁型の点眼剤は使用
時に再分散させなければならないが、2次凝集が生じや
すい薬物では長時聞損とうしなければならなかった。薬
物の粒子サイズを大きくすれば再分散性は良くなるもの
の、眼に対する異物感が生じる欠点がある。
DISCLOSURE OF THE INVENTION Aqueous suspension eye drops are used when formulating drugs with low solubility in water. Such surface suspension type eye drops must be redispersed before use, but drugs that tend to cause secondary aggregation must be left unused for a long time. Although increasing the particle size of the drug improves redispersibility, it has the drawback of causing a foreign body sensation to the eyes.

そこで、本発明者らはこの課題について鋭意検討した結
果、水溶性アルミニウム塩を配合することにより再分散
性にすぐれた水性懸濁点眼剤(以下、本発明製剤という
。)が得られることを見い出した。
The inventors of the present invention conducted extensive studies on this issue and found that an aqueous suspension eye drop with excellent redispersibility (hereinafter referred to as the formulation of the present invention) can be obtained by incorporating a water-soluble aluminum salt. Ta.

本発明製剤における水溶性アルミ、ニウム塩とは塩化ア
ルミニウム、硫酸アルミニウム、硝酸アルミニウムなど
の水に溶解するアルミニウム塩を示す。アルミニウム塩
の濃度は薬物の分散性が良くなる様に設定するが、好ま
しくは0.005〜1.0 %である。
The water-soluble aluminum and nium salts in the formulation of the present invention refer to aluminum salts that are soluble in water, such as aluminum chloride, aluminum sulfate, and aluminum nitrate. The concentration of the aluminum salt is set so as to improve the dispersibility of the drug, and is preferably 0.005 to 1.0%.

本発明製剤に用いられる薬剤は水に対する溶解度の低い
ものであれば特に制限はなく、酪酸クロベタシン、フル
オロメトロン、酢酸ハイドロコーチゾン、デキサメサゾ
ンなどのステロイドやインドメタシン、ピレノキシン、
ピマリシンなどが例としてあげられる。これらの薬物の
波度は薬物の種類、薬効などに応じて適宜選択できる。
The drugs used in the preparation of the present invention are not particularly limited as long as they have low solubility in water, and include steroids such as clobetacin butyrate, fluorometholone, hydrocortisone acetate, dexamethasone, indomethacin, pirenoxine,
An example is pimaricin. The intensity of these drugs can be appropriately selected depending on the type of drug, efficacy, etc.

本発明の効果は「再分散性試験」の項で詳しく述べるが
、本発明製剤の再分散性は水溶性アルミニウム塩を配合
しないものと比較して格段にすぐれておシ、使用時に容
易に再分散できることを示している。又、「刺激性試験
」の項で述べるように本発明製剤は眼に対する刺激もな
く、安全性にも問題ないことが確認された。
The effects of the present invention will be described in detail in the "Redispersibility Test" section, but the redispersibility of the formulation of the present invention is much better than that of formulations that do not contain water-soluble aluminum salts, and it can be easily redispersed during use. This shows that it can be dispersed. Furthermore, as described in the section "Irritation Test", it was confirmed that the preparation of the present invention did not cause any irritation to the eyes and had no safety problems.

本発明製剤には点眼剤として通常用いられている添加剤
を加えても良く、例えば塩化ナトリウム、マンニトール
、グリセリンなどの等張化剤、リン酸水素ナトリウム、
リン酸二水素ナトリウム、ホウ酸、ホウ砂などの緩衝剤
、 ポリソルベート80、ポリオキシエチレン硬化ヒマ
シ油、ショ糖脂肪酸エステルなどの界面活性剤、塩化ベ
ンザルコニウム、パラオキシ安息香酸(以下パラベンと
いう)エステルなどの防腐剤、水酸化ナトリウム、塩酸
などのpH調節剤などがあげられる。
Additives commonly used in eye drops may be added to the formulation of the present invention, such as isotonic agents such as sodium chloride, mannitol, and glycerin, sodium hydrogen phosphate,
Buffers such as sodium dihydrogen phosphate, boric acid, borax, surfactants such as polysorbate 80, polyoxyethylene hydrogenated castor oil, sucrose fatty acid ester, benzalkonium chloride, paraoxybenzoic acid (hereinafter referred to as paraben) ester Examples include preservatives such as, pH regulators such as sodium hydroxide, and hydrochloric acid.

本発明製剤の一般的な製法としては次のものがあげられ
る。滅菌精製水に水溶性アルミニウム塩を加え、必要に
応じて等張化剤、緩衝剤、 界面活性剤、防腐剤などを
加える。必要ならば濾過滅菌した後、この溶液に薬剤を
加え、ホモジナイザーを用いて懸濁させ本発明製剤を得
る。又、ホモジナイザーのかわシに超音波を照射して懸
濁させてもよい。
The following is a general method for producing the preparation of the present invention. Add a water-soluble aluminum salt to sterile purified water, and add tonicity agents, buffers, surfactants, preservatives, etc. as necessary. After sterilization by filtration if necessary, a drug is added to this solution and suspended using a homogenizer to obtain the preparation of the present invention. Alternatively, the suspension may be suspended by irradiating ultrasonic waves onto the sieve of the homogenizer.

本発明製剤のpHは点眼剤として通常用いられているも
のであれば良く、好ましくは4.5〜8である。
The pH of the formulation of the present invention may be any pH commonly used as eye drops, preferably from 4.5 to 8.

本発明製剤は、通常1回1〜数滴、1日1〜数回投与す
ることができる。
The preparation of the present invention can be administered usually one to several drops at a time, one to several times a day.

以下に実施例を示す。Examples are shown below.

「実施例」 実施例1 処方A 100M1中 酪酸クロベタシン      0.1y塩化アルミニウ
ム      o、o s yポリソルベー)80  
    0.03y塩化ナトリウム       0.
8yリン酸二水素ナトリウム     0.3y塩化ベ
ンザルコニウム      o、o o s p水酸化
ナトリウム       適量 滅菌精製水          l 製法 滅菌精製水80−に塩化アルミニウム、ポリソルベート
80、塩化ナトリウム、リン酸二水素ナトリウム、塩化
ベンザルコニウムを加えて溶解する。
"Example" Example 1 Formulation A 100M clobetacin butyrate 0.1y aluminum chloride o, o sy polysorbate) 80
0.03y Sodium chloride 0.
8y Sodium dihydrogen phosphate 0.3y Benzalkonium chloride o, o o sp Sodium hydroxide Appropriate amount Sterile purified water l Manufacturing method Sterile purified water 80-, aluminum chloride, polysorbate 80, sodium chloride, sodium dihydrogen phosphate, chloride Add benzalkonium and dissolve.

水酸化ナトリウムを加えてpHを6に調節した後、滅菌
精製水を加えて全景を1001nlとする。この溶液に
酪酸クロベタシンを加えた後、ホモジナイザーを用いて
懸濁させ本発明の水性懸濁点眼剤を得た。
After adjusting the pH to 6 by adding sodium hydroxide, sterile purified water is added to bring the total volume to 1001 nl. After adding clobetacin butyrate to this solution, the mixture was suspended using a homogenizer to obtain an aqueous suspension eye drop of the present invention.

実施例1と同様の方法で処方B−Eの点眼剤を得た。Eye drops of formulation BE were obtained in the same manner as in Example 1.

処方B 1OO1al中 酪酸クロベタシン      0.05y塩化アルミニ
ウム      0.03yポリソルベー)80   
   0.03yマンニトール        1.8
2グリセリン        1.2y リン酸水素ナトリウム    0.3yメチルパラベン
        0.026 pプロピルパラベン  
    0.0149希塩酸            
適量 滅菌精製水 処方C 100d中 フルオロメトロン       0.1y塩化アルミニ
ウム      0,12ポリオキシエチレン硬化ヒマ
シ油    0.05y塩化ナトリウム       
0.7yυ/酸水素ナトリウム    0.5yリン酸
二水素ナトリウム     適量塩化ベンザルコニウム
    o、oosy滅菌精製水          
適量 処方D 10〇−中 デキサメサゾン       0.1y硝酸アルミニウ
ム      0.05yシヨ糖脂肪酸エステル   
 0.051マンニトール        2.0yグ
リセリン        1.2y メチルパラベン        0.03yプロピルパ
ラベン       0.018y希塩酸      
     適量 水酸化ナトリウム 滅菌精製水 処方E 100 ml中 インドメタシン       0.5y硫酸アルミニウ
ム      0.59ポリソルベート80     
 0.1 yリン酸水素ナトリウム    0.1y塩
化ベンザルコニウム    0.005y希塩酸   
         適量 滅菌精製水 実施例2 処方F 100d中 ピレノキシン       o、oosy塩化アルミニ
ウム     0.02yホウ酸          
1.42 ホウ砂           適量 エチルパラベン      0.0241ブチルパラベ
ン      0.016 F?滅菌nfA水    
     適量 製法 80℃に熱した滅菌¥fIs水80rnlにエチルノ(
ラペン、ブチルパラベン、ホウ酸を溶解する。室温に冷
却した後、塩化アルミニウムを加える。ホウ砂を用いて
p)Iを5.5に調節した後、V、画情製水を加えて全
量を100 mlとする。この溶液にビレ、ツキシンを
加え、ホモジナイザーで9濁させる。
Formulation B Clobetacin butyrate 0.05y aluminum chloride 0.03y polysorbate in 1OO1al) 80
0.03y mannitol 1.8
2 Glycerin 1.2y Sodium hydrogen phosphate 0.3y Methylparaben 0.026 p Propylparaben
0.0149 dilute hydrochloric acid
Appropriate amount of sterile purified water formulation C 100d fluorometholone 0.1y aluminum chloride 0.12 polyoxyethylene hydrogenated castor oil 0.05y sodium chloride
0.7yυ/sodium hydrogen phosphate 0.5y sodium dihydrogen phosphate appropriate amount benzalkonium chloride o, oosy sterile purified water
Proper dosage prescription D 100-medium dexamethasone 0.1y aluminum nitrate 0.05y sucrose fatty acid ester
0.051 mannitol 2.0y glycerin 1.2y methylparaben 0.03y propylparaben 0.018y dilute hydrochloric acid
Appropriate amount of sodium hydroxide Sterilized purified water Formula E 100 ml Indomethacin 0.5y Aluminum sulfate 0.59 Polysorbate 80
0.1y Sodium hydrogen phosphate 0.1y Benzalkonium chloride 0.005y Dilute hydrochloric acid
Appropriate amount of sterile purified water Example 2 Prescription F 100d Pirenoxine o, oosy Aluminum chloride 0.02y Boric acid
1.42 Borax Appropriate amount Ethylparaben 0.0241 Butylparaben 0.016 F? Sterile nfA water
Appropriate amount Preparation method: Add 80 rnl of sterilized water heated to 80°C to
Dissolve Lapen, butylparaben, and boric acid. After cooling to room temperature, aluminum chloride is added. After adjusting p)I to 5.5 using borax, add V and Gejo Seisui to bring the total volume to 100 ml. Add fillet and tuxin to this solution and make it cloudy with a homogenizer.

再分散性試験 点眼容器の底に沈降した薬物の再分散性について調べる
ため次のような実験を行々つた。
Redispersibility test The following experiment was conducted to investigate the redispersibility of the drug that had settled at the bottom of the eye drop container.

あらかじめ5dの点眼容器に本発明製剤とその処方から
アルミニウム塩を除いたものを入れておき薬物を沈降さ
せる。次に点眼容器を2Orpmの速度で回転させ、沈
降していた薬物が均一に分散するまでの回転数を測定し
た。その結果の一例を表に示す。
The preparation of the present invention and its formulation minus the aluminum salt are placed in a 5d eye drop container in advance, and the drug is allowed to precipitate. Next, the eye drop container was rotated at a speed of 2 Orpm, and the number of rotations until the precipitated drug was uniformly dispersed was measured. An example of the results is shown in the table.

表 表に示すように本発明製剤はすみやかに再分散するがア
ルミニウム塩を含まないものはかなりの時間を要してい
る。この結果から本発明製剤の効果は明らかである。
As shown in the table, the formulation of the present invention is quickly redispersed, but the formulation that does not contain aluminum salt takes a considerable amount of time. From this result, the effect of the formulation of the present invention is clear.

刺激性試験 点眼剤の眼刺激性を調べる指標として、通常ウサギの瞬
目回数の測定とドレーズ試験が行なわれる。本発明製剤
の一例として実施例1の処方Aの水性懸濁点眼剤を用い
、生理食塩水をコントロールとして比較検討した。その
結果を下記に示す。
Irritation test As an indicator for examining the eye irritation potential of eye drops, measurement of the number of blinks in rabbits and the Draize test are usually performed. A comparative study was conducted using the aqueous suspension eye drops of Formulation A of Example 1 as an example of the formulation of the present invention, and using physiological saline as a control. The results are shown below.

ウサギに1滴点眼した後の1分間の瞬目回数は両者に差
がなく、刺激は認められなかった。
There was no difference in the number of blinks per minute after one drop was instilled into the eyes of rabbits, and no irritation was observed.

次に10回点眼した後、改良ドレーズ法(福井ら、現代
の臨床、4,277 (1970)’)により採点した
ところ、本発明製剤、生理食塩液のいずれにも障害は認
められず、本発明製剤には眼刺激性がない事を示してい
る。
Next, after applying the instillation 10 times, the eyes were scored using the modified Draize method (Fukui et al., Modern Clinical Practice, 4,277 (1970)'). This shows that the invented formulation does not cause eye irritation.

「発明の効果」 本発明の水性i濁点成剤は再分散性が良く、更に刺激性
がないというすぐれた効果を有するものでちる。
"Effects of the Invention" The aqueous cloud point forming agent of the present invention has excellent redispersibility and is free from irritation.

Claims (3)

【特許請求の範囲】[Claims] (1)水溶性アルミニウム塩を配合することにより薬物
の分散性を高めたことを特徴とする水性懸濁点眼剤。
(1) An aqueous suspension eye drop characterized by having improved drug dispersibility by incorporating a water-soluble aluminum salt.
(2)薬物が水に難溶性である特許請求の範囲第1項記
載の水性懸濁点眼剤。
(2) The aqueous suspension eye drops according to claim 1, wherein the drug is sparingly soluble in water.
(3)薬物が酪酸クロベタゾン、フルオロメトロン、酢
酸ハイドロコーチゾン、デキサメサゾン、インドメタシ
ン、ピレノキシンまたはピマリシンである特許請求の範
囲第1項記載の水性懸濁点眼剤。
(3) The aqueous suspension eye drops according to claim 1, wherein the drug is clobetasone butyrate, fluorometholone, hydrocortisone acetate, dexamethasone, indomethacin, pirenoxine, or pimaricin.
JP63041572A 1988-02-23 1988-02-23 Aqueous suspension eye drops Expired - Fee Related JPH0796495B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63041572A JPH0796495B2 (en) 1988-02-23 1988-02-23 Aqueous suspension eye drops

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63041572A JPH0796495B2 (en) 1988-02-23 1988-02-23 Aqueous suspension eye drops

Publications (2)

Publication Number Publication Date
JPH01213228A true JPH01213228A (en) 1989-08-28
JPH0796495B2 JPH0796495B2 (en) 1995-10-18

Family

ID=12612157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63041572A Expired - Fee Related JPH0796495B2 (en) 1988-02-23 1988-02-23 Aqueous suspension eye drops

Country Status (1)

Country Link
JP (1) JPH0796495B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037286A1 (en) * 1998-01-22 1999-07-29 Santen Pharmaceutical Co., Ltd. Fluorometholone suspension eye drops
WO2008123396A1 (en) * 2007-03-29 2008-10-16 Santen Pharmaceutical Co., Ltd. Suspension-type eye drop preparation comprising fluorometholone
US8746047B2 (en) 2008-07-16 2014-06-10 Pokka Corporation Dispersion analysis method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136323A (en) * 1974-07-26 1976-03-27 Ai Ranpaato Shuromo Shigekinitaisuru taishoshano hannoo sokuteisuru sochinarabini hoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136323A (en) * 1974-07-26 1976-03-27 Ai Ranpaato Shuromo Shigekinitaisuru taishoshano hannoo sokuteisuru sochinarabini hoho

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037286A1 (en) * 1998-01-22 1999-07-29 Santen Pharmaceutical Co., Ltd. Fluorometholone suspension eye drops
US6288049B1 (en) 1998-01-22 2001-09-11 Santen Pharmaceutical Co., Ltd. Fluorometholone ophthalmic suspension
WO2008123396A1 (en) * 2007-03-29 2008-10-16 Santen Pharmaceutical Co., Ltd. Suspension-type eye drop preparation comprising fluorometholone
US8746047B2 (en) 2008-07-16 2014-06-10 Pokka Corporation Dispersion analysis method and device

Also Published As

Publication number Publication date
JPH0796495B2 (en) 1995-10-18

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