Proline USP Rx (API grade)

Proline, USP (API grade) -- All Letco APIs are of the highest pharmaceutical grade and comply, where applicable, with the current requirements of pharmacopoeial standards (USP-NF, BP, EP or equivalent). All Letco APIs are sourced from FDA-registered manufacturers. The name and address of the API’s manufacturer can be found on Letco’s Certificates of Analysis, and the manufacturer’s FDA registration status can be verified on the FDA’s Drug Establishment register: https://dps.fda.gov/decrs.