Papaverine Hydrochloride USP from Japan
Papaverine hydrochloride is the salt form of papaverine, a benzylisoquinoline alkaloid derived from opium, used primarily as a smooth muscle relaxant in pharmaceutical applications. It falls under HTS 2939.19.10.00 as a salt of the opium alkaloid papaverine, consistent with chapter notes specifying alkaloids and their salts. This pure chemical compound is supplied as a white crystalline powder for compounding into injectables or oral medications.
Duty Rate — Japan → United States
Rate breakdown
Import Tips
• Verify USP or EP pharmacopeia grade certification and provide Certificate of Analysis (CoA) confirming purity >98% to avoid reclassification as impure mixtures
• Include FDA Drug Master File (DMF) references and ensure INN compliance for papaverine hydrochloride; declare as bulk API not finished dosage forms