US5296235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plaster preparation
Assignee: DOJIN IYAKU-KAKO Co Ltd
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Filing: 1992-05-19
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Granted: 1994-03-22
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Expires: 2012-05-19
Abstract
Abstract A plaster comprising pranoprofen, a hydrophilic or hydrophobic base component, and an absorbefacient is disclosed. The plaster is effective for curing arthritis deformans, muscle ache, distention after external injuries, and aches. Since pranoprofen is administered away from gastrointestinal tracts, application of the plaster is not accompanied by side effects such as peptic ulcer, bleeding in constipation, and diarrhea. It can release pranoprofen constantly over a extended period of time.
Inventors
- 👤 Yoichi Sawayanagi
- 👤 Yutaka Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:10
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K9/7023; A61K9/703; A61K9/7038; A61K9/7046; A61K9/7069; A61K9/06; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; A61K47/00; A61K47/06; A61K47/08; A61K47/10; A61K47/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
A plaster comprising pranoprofen, wherein the pranoprofen is not dissolved with an organic solvent, a hydrophilic base component and an absorbefacient comprising a mixture of propylene glycol, diisopropyladipate, and 1-menthol, wherein each of the members of said mixture is present in an amount of from 0.1 to 15% by weight.
Claim 2
Dependent Claim
50 words
A plaster comprising pranoprofen, wherein the pranoprofen is not dissolved with an organic solvent, a hydrophilic base component and an absorbefacient comprising a mixture of propylene glycol, diisopropyladipate, and 1-menthol, wherein each of the members of said mixture is present in an amount of from 0.1 to 15% by weight.
Claim 3
Dependent Claim
10 words
The plaster according to claim 1, further comprising benzyl alcohol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |