CA2124425A1 - Pharmaceutical Tablets Releasing the Active Substance After a Definite Period of Time - Google Patents
Pharmaceutical Tablets Releasing the Active Substance After a Definite Period of TimeInfo
- Publication number
- CA2124425A1 CA2124425A1 CA 2124425 CA2124425A CA2124425A1 CA 2124425 A1 CA2124425 A1 CA 2124425A1 CA 2124425 CA2124425 CA 2124425 CA 2124425 A CA2124425 A CA 2124425A CA 2124425 A1 CA2124425 A1 CA 2124425A1
- Authority
- CA
- Canada
- Prior art keywords
- active substance
- time
- definite period
- pharmaceutical tablets
- core
- 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
Abstract
Pharmaceutical tablets releasing the active substance after a definite period of time, consisting of:
- a core containing the active substance and polymeric substances which swell and/or gel and /or erode on contact with water or with aqueous liquids;
- a layer applied externally to said core, suitable to prevent the immediate release of the active substance contained in the core and to allow the release of said active substance after a definite period of time, consisting of natural and/or synthetic polymeric materials of the class of the hydrophilic polymers which erode and/or gel and/or dissolve in an aqueous medium;
- a possible gastroresistant and enterosoluble coating.
- a core containing the active substance and polymeric substances which swell and/or gel and /or erode on contact with water or with aqueous liquids;
- a layer applied externally to said core, suitable to prevent the immediate release of the active substance contained in the core and to allow the release of said active substance after a definite period of time, consisting of natural and/or synthetic polymeric materials of the class of the hydrophilic polymers which erode and/or gel and/or dissolve in an aqueous medium;
- a possible gastroresistant and enterosoluble coating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2124425 CA2124425C (en) | 1994-05-26 | 1994-05-26 | Pharmaceutical tablets releasing the active substance after a definite period of time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2124425 CA2124425C (en) | 1994-05-26 | 1994-05-26 | Pharmaceutical tablets releasing the active substance after a definite period of time |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2124425A1 true CA2124425A1 (en) | 1995-11-27 |
CA2124425C CA2124425C (en) | 1999-12-21 |
Family
ID=4153683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2124425 Expired - Lifetime CA2124425C (en) | 1994-05-26 | 1994-05-26 | Pharmaceutical tablets releasing the active substance after a definite period of time |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2124425C (en) |
-
1994
- 1994-05-26 CA CA 2124425 patent/CA2124425C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2124425C (en) | 1999-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20140526 |