EP0241178A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Pharmaceutical composition for treating periodontal diseases
Assignee: Rohto Pharmaceutical Co Ltd
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Filing: 1987-03-24
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Granted: —
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Expires: 2007-03-24
Abstract
Abstract A pharmaceutical composition for treating periodontal diseases which comprises one or more of therapeutically active ingredients dispersed in a carrier, characterized in that said carrier consists of (A) water soluble polymer, and (B) polymeric particles having a limited solubility in water, said particles being dispersed in said water soluble polymer.
Inventors
- 👤 Kiyotsugu Higashi
- 👤 Shigeru Kametaka
- 👤 Katsuhiko Morisaki
- 👤 Shin'ichi Hayashi
- 👤 Reiko Izumi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0063
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
41 words
A pharmaceutical composition for treating periodontal diseases which comprises one or more of therapeutically active ingredients dispersed in a carrier, characterized in that said carrier consists of (A) water soluble polymer, and (B) polymeric particles having a limited solubility in water,
Claim 2
Dependent Claim
41 words
A pharmaceutical composition for treating periodontal diseases which comprises one or more of therapeutically active ingredients dispersed in a carrier, characterized in that said carrier consists of (A) water soluble polymer, and (B) polymeric particles having a limited solubility in water,
Claim 3
Dependent Claim
9 words
said particles being dispersed in said water soluble polymer.
Claim 4
Dependent Claim
9 words
said particles being dispersed in said water soluble polymer.
Claim 5
Dependent Claim
16 words
A pharmaceutical composition according to Claim 1 in the form of gel, sheet, film or bar.
Claim 6
Dependent Claim
133 words
A pharmaceutical composition according to Claim 1 or 2 wherein said particles are composed of one or more of compounds selected from ethyl cellulose, cellulose acetate, ethyl methacrylate / trimethylammonioethyl methacrylate chloride copolymer, ion-exchange resins, poly(glycolic acid), poly(lactic acid), polytetramethylglycolide, polydiethylglycolide, poly-ε-caprolactone, poly(DL-decalactone), poly(alkyleneadipate), methyl acrylate / methacrylic acid copolymer, methyl acrylate / methacrylic acid / octylacrylate copolymer, ethyl acrylate / methacrylic acid copolymer, methyl acrylate / methacrylic acid / methylmethacrylate copolymer, methyl methacrylate / methacrylic acid copolymer, cellulose acetate phthalate, cellulose acetate succinate, cellulose acetate maleate, starch acetate phthalate, amylose acetate phthalate, methyl cellulose phthalate, hydroxypropylmethyl cellulose phthalate, hydroxyethyl ethyl cellulose phthalate, hydroxypropylmethyl cellulose acetate succinate, carboxymethylethyl cellulose, polyvinylalcohl phthalate, polyvinyl acetate phthalate, polyvinylacetal phthalate, polyvinylbutylate phthalate, methyl methacrylate / dimethylaminoethyl methacrylate copolymer, polyvinylacetal / dimethylamino acetate, and cellulose acetate dibutylhydroxypropyl ether.
Claim 7
Dependent Claim
52 words
A pharmaceutical composition according to Claim 1, 2, or 3 wherein said water soluble polymer is selected from methyl cellulose, hydroxypropyl cellulose, sodium carboxymethylcellulose, hydroxypropylmethyl cellulose, hydroxyethyl cellulose, sodium alginate, propylene glycol alginate, pullulan, tragacanth, xanthan gum, chitosan, polyethylene oxide, polyvinyl pyrrolidone, polyvinyl alcohol, polyacrylic acid, polymethacrylic acid, and a salt thereof.
Claim 8
Dependent Claim
21 words
A pharmaceutical composition according to any preceding claim wherein said particles have an average size ranging from 1µm to 500 µm.
References Cited (Backward Citations)
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