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Generated: June 24, 2019

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Details for Patent: 4,092,315

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Summary for Patent: 4,092,315
Title: Novel crystalline forms of prazosin hydrochloride
Abstract:The invention relates to novel and valuable crystalline forms of the hypotensive agent prazosin hydrochloride. The anhydrous .alpha.-form is preferred because it is relatively non-hygroscopic and hence possesses important advantages in handling and formulation. The polyhydrate form of prazosin hydrochloride is preferred because of its low, uniform rate of dissolution.
Inventor(s): Bianco; Ernest J. (Niantic, CT)
Assignee: Pfizer Inc. (New York, NY)
Application Number:05/662,937
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Patent Claim Types:
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Compound; Process;

Drugs Protected by US Patent 4,092,315

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

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International Family Members for US Patent 4,092,315

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 210937 ➤ Try a Free Trial
Australia 2244377 ➤ Try a Free Trial
Australia 506937 ➤ Try a Free Trial
Belgium 851878 ➤ Try a Free Trial
Bulgaria 29724 ➤ Try a Free Trial
Canada 1068269 ➤ Try a Free Trial
Switzerland 618436 ➤ Try a Free Trial
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