US4851391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-ethyl-2-deoxyuridine and urea composition for the treatment of viral diseases
Assignee: Robugen GmbH Pharmaceutische Fabrik
•
Filing: 1988-02-26
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Granted: 1989-07-25
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Expires: 2008-02-26
Abstract
Abstract Novel medicinal agent for the topical treatment of viral diseases, containing 5-ethyl-2'-deoxyuridine as the antivirally active compound and urea as the penetration-promoting compound, in an aqueous gel.
Inventors
- 👤 Bernd Hempel
- 👤 Ravindernath Kaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:02
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K47/00; A61K47/06; A61K47/16; A61K47/18; A61K9/00; A61K9/0012; A61K9/0014
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
33 words
A pharmaceutical composition for the topical treatment of viral diseases in man and animals, consisting of an antivirally effective amount of 5-ethyl-2'-deoxyuridine and a penetration-promoting amount of urea in a gel forming base.
Claim 2
Dependent Claim
33 words
A pharmaceutical composition for the topical treatment of viral diseases in man and animals, consisting of an antivirally effective amount of 5-ethyl-2'-deoxyuridine and a penetration-promoting amount of urea in a gel forming base.
Claim 3
Dependent Claim
35 words
The pharmaceutical composition according to claim 1 wherein said antiviral effective amount of 5-ethyl-2'-deoxyuridine comprises 1-5% by weight, and said penetration promoting amount of urea comprises 3-7% by weight, in an aqueous gel forming base.
Claim 4
Dependent Claim
24 words
A method of treating a viral disease in a mammal which comprises administering an antiviral effective amount of the composition according to claim 1.
Claim 5
Dependent Claim
14 words
The method according to claim 3 wherein said viral disease is caused by HSV-1.
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |