small molecule

THIOLA

TIOPRONIN

Loss of exclusivityJune 2026FDA regulatory exclusivity expiry
CompanyMISSION PHARMACAL CO

Drug detail

Brand nameTHIOLA
Active ingredientTIOPRONIN
Strength100MG
Dosage formTABLET
RouteORAL
ModalitySmall molecule
FDA approvalAugust 1988
Marketing statusRX

Regulatory exclusivity

CodeExpires
ODE-267June 2026

Source: FDA Orange Book, layered on the CliffBio company graph. Cliff dates are the FDA regulatory exclusivity expiry; estimates are projections, not legal advice.

THIOLA patent cliff — loss of exclusivity June 2026 | CliffBio