Regulation: control status by country
Domestic control status of a substance in a country (narcotic, psychotropic, prescription-only) from official sources.
trypan blue: status by country
- United Statesprescription only
Source: openFDA NDC · record 01a1209b-b0f3-7881-b196-40f66a08369e,01a1209b-b0f7-791b-a66c-bbb9ab98df71;count=2 · valid from 2026-10-09 · verified 2026-10-09