JP4524559B2 - 眼科用組成物及びビタミンa類の安定化方法 - Google Patents
眼科用組成物及びビタミンa類の安定化方法 Download PDFInfo
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- JP4524559B2 JP4524559B2 JP2003429748A JP2003429748A JP4524559B2 JP 4524559 B2 JP4524559 B2 JP 4524559B2 JP 2003429748 A JP2003429748 A JP 2003429748A JP 2003429748 A JP2003429748 A JP 2003429748A JP 4524559 B2 JP4524559 B2 JP 4524559B2
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- JP
- Japan
- Prior art keywords
- vitamin
- ophthalmic composition
- acid
- composition
- chlorobutanol
- 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.)
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- 239000011719 vitamin A Substances 0.000 title claims description 36
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- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 title claims description 35
- 229940045997 vitamin a Drugs 0.000 title claims description 35
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- 238000000034 method Methods 0.000 title claims description 8
- 230000000087 stabilizing effect Effects 0.000 title description 5
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- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Medicinal Preparation (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
[1].ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールと、ホウ酸、ホウ酸塩、クエン酸及びクエン酸塩から選ばれる1種又は2種以上と、炭酸水素ナトリウムとを含有してなることを特徴とする眼科用組成物。
[2].ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールと、ホウ酸又はその塩と、クエン酸又はその塩と、炭酸水素ナトリウムとを含有してなることを特徴とする眼科用組成物。
[3].さらに、ノニオン界面活性剤を含有する[1]又は[2]記載の眼科用組成物。
[4].pHが4.5〜7.0である[1]、[2]又は[3]記載の眼科用組成物。
[5].ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールとを含有する眼科用組成物に、ホウ酸、ホウ酸塩、クエン酸及びクエン酸塩から選ばれる1種又は2種以上と、炭酸水素ナトリウムとを配合することを特徴とする、該ビタミンA類の安定化方法。
本発明に用いられる薬物は、眼科用組成物に配合可能なものであれば、その種類が特に制限されるものではない。薬物としては、例えば、充血除去剤(塩酸ナファゾリン、塩酸テトラヒドロゾリン、塩酸フェニレフリン等)、消炎・収斂剤(メチル硫酸ネオスチグミン、グリチルリチン酸、グリチルリチン酸二カリウム、アズレンスルホン酸、アズレンスルホン酸ナトリウム、ε−アミノカプロン酸、アラントイン、塩化ベルベリン、硫酸亜鉛等)、抗ヒスタミン剤(塩酸ジフェンヒドラミン、塩酸イソチペンジル、マレイン酸クロルフェニラミン等)、脂溶性ビタミン類[ビタミンA類(パルミチン酸レチノール、酢酸レチノール等)、ビタミンE類(酢酸d−α−トコフェロール等)等]、水溶性ビタミン類(活性型ビタミンB2、ビタミンB6(塩酸ピリドキシン)、ビタミンB12、ビタミンC等)、アミノ酸類(L−アスパラギン酸、L−アスパラギン酸カリウム、L−アスパラギン酸マグネシウム、アミノエチルスルホン酸、イプシロン−アミノカプロン酸、コンドロイチン硫酸、コンドロイチン硫酸ナトリウム等)、局所麻酔剤(リドカイン、塩酸リドカイン、塩酸プロカイン、塩酸ジブカイン等)を挙げることができる。これらは1種単独又は2種以上を適宜組み合わせて使用することができる。
粘稠剤としては、例えば、ポリビニルピロリドン、ヒドロキシエチルセルロース、ヒドロキシプロピルメチルセルロース、ポリビニルアルコール、ヒアルロン酸ナトリウム、コンドロイチン硫酸ナトリウム、カルボキシビニルポリマー、メチルセルロース等が挙げられる。これらの配合量は、組成物中0.001〜20w/v%、より好ましくは0.01〜10w/v%である。
表1に示す組成に従って常法に準じて実施例1,2及び比較例1の点眼剤を調製し、これらを60℃、7日間の過酷条件で保存した。保存前後の製剤のpHを測定し、また薬物(パルミチン酸レチノール)の含量を下記定量法に従って定量し、残存率(%)を算出した。
製造直後及び上記条件の保存後の点眼剤中のパルミチン酸レチノール含量を、高速液体クロマトグラフィー法(カラム:内径約4mm,長さ約15cmのステンレス管に約5μmの液体クロマトグラフ用オクタデシルシリル化シリカゲルを充填、移動相:メタノール、検出器:紫外吸光光度計(測定波長:280nm))により測定し、下記式により残存率を算出した。
残存率(%)=(保存後の含量/製造直後の含量)×100
表2及び3に示す組成に従って常法に準じて実施例3〜10の点眼剤及び実施例11〜18の洗眼剤を調製し、これらを上記実施例1と同様にして、60℃、7日間の過酷条件で保存した。保存前後の製剤のpHを測定し、各組成物中のパルミチン酸レチノールの残存率を算出した。その結果、ホウ酸、炭酸水素ナトリウムを含有した実施例3〜18の眼科用組成物は、いずれもpH安定性及びパルミチン酸レチノールの安定性が良好であった。
Claims (5)
- ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールと、ホウ酸、ホウ酸塩、クエン酸及びクエン酸塩から選ばれる1種又は2種以上と、炭酸水素ナトリウムとを含有してなることを特徴とする眼科用組成物。
- ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールと、ホウ酸又はその塩と、クエン酸又はその塩と、炭酸水素ナトリウムとを含有してなることを特徴とする眼科用組成物。
- さらに、ノニオン界面活性剤を含有する請求項1又は2記載の眼科用組成物。
- pHが4.5〜7.0である請求項1、2又は3記載の眼科用組成物。
- ビタミンA、ビタミンA油及びビタミンA脂肪酸エステルから選ばれるビタミンA類と、クロロブタノールとを含有する眼科用組成物に、ホウ酸、ホウ酸塩、クエン酸及びクエン酸塩から選ばれる1種又は2種以上と、炭酸水素ナトリウムとを配合することを特徴とする、該ビタミンA類の安定化方法。
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JP4972895B2 (ja) * | 2005-08-29 | 2012-07-11 | 大正製薬株式会社 | 尿素配合外用製剤 |
JP5083502B2 (ja) * | 2006-12-25 | 2012-11-28 | ライオン株式会社 | 眼科用組成物 |
JP5084967B1 (ja) * | 2012-06-08 | 2012-11-28 | ライオン株式会社 | 高吸着性ビタミンa含有ナノエマルション粒子を含む眼科用組成物及びその製造方法 |
JP6333023B2 (ja) * | 2014-03-31 | 2018-05-30 | 小林製薬株式会社 | 水性医薬組成物 |
JP6050454B1 (ja) * | 2015-09-28 | 2016-12-21 | 参天製薬株式会社 | 水性医薬組成物 |
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JPH02204411A (ja) * | 1989-02-02 | 1990-08-14 | Zeria Pharmaceut Co Ltd | 水性製剤組成物 |
JPH1029937A (ja) * | 1996-05-15 | 1998-02-03 | Kobayashi Seiyaku Kogyo Kk | メフェナム酸水溶液製剤 |
JP2002302440A (ja) * | 2001-02-01 | 2002-10-18 | Rohto Pharmaceut Co Ltd | 点眼剤 |
JP2003183157A (ja) * | 2001-12-19 | 2003-07-03 | Lion Corp | 眼科用組成物 |
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2003
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02204411A (ja) * | 1989-02-02 | 1990-08-14 | Zeria Pharmaceut Co Ltd | 水性製剤組成物 |
JPH1029937A (ja) * | 1996-05-15 | 1998-02-03 | Kobayashi Seiyaku Kogyo Kk | メフェナム酸水溶液製剤 |
JP2002302440A (ja) * | 2001-02-01 | 2002-10-18 | Rohto Pharmaceut Co Ltd | 点眼剤 |
JP2003183157A (ja) * | 2001-12-19 | 2003-07-03 | Lion Corp | 眼科用組成物 |
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