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Last Updated: March 28, 2024

Details for Patent: RE34672


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Summary for Patent: RE34672
Title: Pharmaceutical composition containing a stable modification of torasemide
Abstract:The present invention provides a process for the preparation of cystalline torasemide in the pure modification I (monoclinic, space group P2.sub.1 /c, melting point 162.degree. C.) from torasemide of modification II (monoclinic, space group P2/n, melting point 169.degree. C.), wherein a suspension of torasemide of modification II is stirred in water with the addition of a catalytic amount of modification I until the rearrangement is complete. The present invention also provides pharmaceutical compositions containing torasemide of modification I.
Inventor(s): Topfmeier; Fritz (Heidelberg, DE), Lettenbauer; Gustav (Lampertheim, DE)
Assignee: Boehringer Mannheim GmbH (Mannheim, DE)
Application Number:08/043,631
Patent Claim Types:
see list of patent claims
Composition; Dosage form; Use;

Drugs Protected by US Patent RE34672

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: RE34672

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany3529529Aug 17, 1985

International Family Members for US Patent RE34672

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 49196 ⤷  Try a Trial
Australia 573454 ⤷  Try a Trial
Australia 6105586 ⤷  Try a Trial
Canada 1307277 ⤷  Try a Trial
Czechoslovakia 259891 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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