Zaleplon API from Mexico
Zaleplon, active in Sonata sleep aid, contains pyrazole ring as core structure for non-benzodiazepine hypnotic action. HTS 2933.19.4500 classification for unfused pyrazole drugs. Bulk API for capsule production.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Controlled substance documentation required (Schedule IV); include DEA import permit
• Specify pyrazole acetamide structure in technical dossier with mass spec confirmation