Regulation: control status by country
Domestic control status of a substance in a country (narcotic, psychotropic, prescription-only) from official sources.
tiopronin: status by country
- United Statesprescription only
Source: openFDA NDC · record 01a1208c-bb27-7e90-a6c1-ad628708380b,01a1208d-1fee-7390-b34b-02d7204d23b9,01a1208e-4890-7152-8549-f3fb4b4155c8,01a1208e-4896-76a1-8e51-a22769f601bf,01a1208e-dfda-723c-8bfb-173fe26b0939;count=16 · valid from 2026-10-09 · verified 2026-10-09