Regulation: control status by country
Domestic control status of a substance in a country (narcotic, psychotropic, prescription-only) from official sources.
isoniazid: status by country
- United Statesprescription only
Source: openFDA NDC · record 01a1208c-3c11-7426-87dc-0492a87991ea,01a1208d-297f-7984-9d2c-4d4a6102b6c8,01a1208e-ad4f-7b09-b900-8054e2f02e9d,01a1208e-f282-76b9-9a95-727b6be1626c,01a1208e-f37c-7389-809f-a9127e0a5f26;count=27 · valid from 2026-10-09 · verified 2026-10-09