Regulation: control status by country
Domestic control status of a substance in a country (narcotic, psychotropic, prescription-only) from official sources.
methacholine: status by country
- United Statesprescription only
Source: openFDA NDC · record 01a1208c-9553-7e5b-b2e0-5ea8a3f711f1,01a1208d-7367-7408-92cc-8ed07012387e;count=2 · valid from 2026-10-09 · verified 2026-10-09