US4382946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of alleviating withdrawal symptoms
Assignee: BRITANNA PHARMACEUTICALS Ltd
•
Filing: 1981-12-14
•
Granted: 1983-05-10
•
Expires: 2001-12-14
Abstract
Abstract The use of lofexidine and its pharmaceutically acceptable salts in alleviating the adverse symptoms of drug withdrawal is disclosed.
Inventors
- 👤 Albert Sjoerdsma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:33
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/415
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
46 words
A method of alleviating the adverse symptoms of withdrawal from a drug substance selected from the group consisting of alcohol and methadone, which comprises administering an anti-withdrawal effective amount of lofexidine or a pharmaceutical salt thereof to an individual dependent upon said drug or drug substance.
Claim 2
Independent Claim
46 words
A method of alleviating the adverse symptoms of withdrawal from a drug substance selected from the group consisting of alcohol and methadone, which comprises administering an anti-withdrawal effective amount of lofexidine or a pharmaceutical salt thereof to an individual dependent upon said drug or drug substance.
Claim 3
Dependent Claim
17 words
A method according to claim 1 wherein the dosage is from 0.1 to 1.6 milligrams per day.
Claim 4
Dependent Claim
11 words
A method according to claim 1 wherein the drug is alcohol.
Claim 5
Dependent Claim
11 words
A method according to claim 1 wherein the drug is methadone.
References Cited (Backward Citations)
US4312878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |