CA2223014A1 - Controlled release formulation having a preformed passageway - Google Patents
Controlled release formulation having a preformed passagewayInfo
- Publication number
- CA2223014A1 CA2223014A1 CA002223014A CA2223014A CA2223014A1 CA 2223014 A1 CA2223014 A1 CA 2223014A1 CA 002223014 A CA002223014 A CA 002223014A CA 2223014 A CA2223014 A CA 2223014A CA 2223014 A1 CA2223014 A1 CA 2223014A1
- Authority
- CA
- Canada
- Prior art keywords
- controlled release
- passageway
- release formulation
- tablet
- preformed passageway
- 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.)
- Granted
Links
Landscapes
- Medicinal Preparation (AREA)
Abstract
A controlled release pharmaceutical tablet having at least one passageway, said tablet having: (a) a compressed core which comprises:
(i) a medicament; (ii) an amount of a water soluble osmotic agent which is effective to cause the medicament to be delivered from said passageway in the presence of aqueous media; (iii) a water-swellable pharmaceutically acceptable polymer, and (b) a membrane coating around said core tablet which comprises a water insoluble pharmaceutically acceptable polymer.
(i) a medicament; (ii) an amount of a water soluble osmotic agent which is effective to cause the medicament to be delivered from said passageway in the presence of aqueous media; (iii) a water-swellable pharmaceutically acceptable polymer, and (b) a membrane coating around said core tablet which comprises a water insoluble pharmaceutically acceptable polymer.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/476,455 US5654005A (en) | 1995-06-07 | 1995-06-07 | Controlled release formulation having a preformed passageway |
US08/476,455 | 1995-06-07 | ||
PCT/US1996/008869 WO1996040080A1 (en) | 1995-06-07 | 1996-06-05 | Controlled release formulation having a preformed passageway |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2223014A1 true CA2223014A1 (en) | 1996-12-19 |
CA2223014C CA2223014C (en) | 2006-02-14 |
Family
ID=35892321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002223014A Expired - Fee Related CA2223014C (en) | 1995-06-07 | 1996-06-05 | Controlled release formulation having a preformed passageway |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2223014C (en) |
-
1996
- 1996-06-05 CA CA002223014A patent/CA2223014C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2223014C (en) | 2006-02-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140605 |