WO1995015162A1 - Tablette oder kapsel mit einem gehalt an stabilem ranitidin-hydrochlorid form 1 - Google Patents
Tablette oder kapsel mit einem gehalt an stabilem ranitidin-hydrochlorid form 1 Download PDFInfo
- Publication number
- WO1995015162A1 WO1995015162A1 PCT/EP1994/004044 EP9404044W WO9515162A1 WO 1995015162 A1 WO1995015162 A1 WO 1995015162A1 EP 9404044 W EP9404044 W EP 9404044W WO 9515162 A1 WO9515162 A1 WO 9515162A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tablet
- ranitidine hydrochloride
- capsule
- powder mixture
- hydrochloride form
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
Definitions
- ranitidine hydrochloride is known in a crystalline form, which according to DE-C-3 139 134 as For
- ranitidine hydrochloride which should be pure and highly crystalline and is referred to as Form 2.
- This form 2 can be obtained by recrystallizing form 1, the recrystallization process being accelerated by adding seed crystals of form 2.
- ranitidine hydrochloride is thus in the form of Form 2 at room temperature, while Form 1 is stable, so that it changes to Form 2 in the presence of seed crystals of Form 2. It must therefore be surprising that tablets or capsules according to the invention can be provided which are characterized by a powder mixture containing stable ranitidine hydrochloride form 1 in addition to a carrier and / or diluent.
- the ranitidine hydrochloride form 1 is preferably in crystalline form. Tablets or capsules according to the invention are preferred, in which X-ray diffractometry cannot detect form 2 ranitidine hydrochloride for at least 2 years after the tablets or capsules have been produced.
- ranitidine hydrochloride Form 1 For the availability of ranitidine hydrochloride Form 1, reference is made to GB-B-1 565 966 and to commercial products.
- ranitidine hydrochloride correspond to 300 mg ranitidine base.
- Examples 2 to 3 were reworked with this approach, again using water granulation.
- ranitidine hydrochloride form 2 could not be detected in the tablets obtained.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95903320A EP0731701A1 (de) | 1993-12-03 | 1994-12-05 | Tablette oder kapsel mit einem gehalt an stabilem ranitidin-hydrochlorid form 1 |
AU12423/95A AU1242395A (en) | 1993-12-03 | 1994-12-05 | Tablet or capsule containing a stable type 1 ranitidine hydrochloride |
US08/652,439 US5910320A (en) | 1993-12-03 | 1994-12-05 | Tablet or capsule having a content of stable ranitidine hydrochloride form 1 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4341310.2 | 1993-12-03 | ||
DE4341310A DE4341310A1 (de) | 1993-12-03 | 1993-12-03 | Tablette oder Kapsel mit einem Gehalt an stabilem Ranitidinhydrochlorid Form 1 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995015162A1 true WO1995015162A1 (de) | 1995-06-08 |
Family
ID=6504153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/004044 WO1995015162A1 (de) | 1993-12-03 | 1994-12-05 | Tablette oder kapsel mit einem gehalt an stabilem ranitidin-hydrochlorid form 1 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5910320A (de) |
EP (1) | EP0731701A1 (de) |
AU (1) | AU1242395A (de) |
DE (1) | DE4341310A1 (de) |
WO (1) | WO1995015162A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1565966A (en) * | 1976-08-04 | 1980-04-23 | Allen & Hanburys Ltd | Aminoalkyl furan derivatives |
US4521431A (en) * | 1980-10-01 | 1985-06-04 | Glaxo Group Limited | Aminoalkyl furan derivative |
DE3915575A1 (de) * | 1988-05-13 | 1989-11-16 | Glaxo Inc | Ranitidinhydrochlorid-tablette |
GB2229094A (en) * | 1989-02-23 | 1990-09-19 | Glaxo Canada | Pharmaceutical capsules containing ranitidine |
EP0505872A1 (de) * | 1991-03-27 | 1992-09-30 | Bayer Corporation | Schluckbare Tablette mit hohem Gehalt an Salzen organischer Säuren |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5338871A (en) * | 1991-12-20 | 1994-08-16 | Torcan Chemical Ltd. | Preparation of form 1 ranitidine hydrochloride |
-
1993
- 1993-12-03 DE DE4341310A patent/DE4341310A1/de not_active Withdrawn
-
1994
- 1994-12-05 US US08/652,439 patent/US5910320A/en not_active Expired - Fee Related
- 1994-12-05 EP EP95903320A patent/EP0731701A1/de not_active Withdrawn
- 1994-12-05 WO PCT/EP1994/004044 patent/WO1995015162A1/de not_active Application Discontinuation
- 1994-12-05 AU AU12423/95A patent/AU1242395A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1565966A (en) * | 1976-08-04 | 1980-04-23 | Allen & Hanburys Ltd | Aminoalkyl furan derivatives |
US4521431A (en) * | 1980-10-01 | 1985-06-04 | Glaxo Group Limited | Aminoalkyl furan derivative |
DE3915575A1 (de) * | 1988-05-13 | 1989-11-16 | Glaxo Inc | Ranitidinhydrochlorid-tablette |
GB2229094A (en) * | 1989-02-23 | 1990-09-19 | Glaxo Canada | Pharmaceutical capsules containing ranitidine |
EP0505872A1 (de) * | 1991-03-27 | 1992-09-30 | Bayer Corporation | Schluckbare Tablette mit hohem Gehalt an Salzen organischer Säuren |
Also Published As
Publication number | Publication date |
---|---|
AU1242395A (en) | 1995-06-19 |
US5910320A (en) | 1999-06-08 |
EP0731701A1 (de) | 1996-09-18 |
DE4341310A1 (de) | 1995-06-08 |
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