← Patent-cliff monitor Loss of exclusivity June 2029 latest FDA-listed patent expiry
Company Vivus, Inc. → See this company's full patent-cliff portfolio Drug detail Brand name QSYMIA Active ingredient PHENTERMINE HYDROCHLORIDE; TOPIRAMATE Strength EQ 3.75MG BASE;23MG Dosage form CAPSULE, EXTENDED RELEASE Route ORAL Modality Small molecule FDA approval July 2012 Marketing status RX
Listed patents Patent Expires Type 8580299 June 2029 use U-3399 8580298 May 2029 product 9011906 June 2028 use U-3398 8895057 June 2028 use U-3398 8895058 June 2028 product 9011905 June 2028 product
Regulatory exclusivity Code Expires M-308 September 2027
Source: FDA Orange Book, layered on the CliffBio company graph. Cliff dates are the latest FDA-listed patent expiry; estimates are projections, not legal advice.