Celecoxib API from Mexico
Celecoxib is a selective COX-2 inhibitor used as the active pharmaceutical ingredient in anti-inflammatory drugs like Celebrex for treating arthritis. It contains an unfused pyrazole ring in its heterocyclic structure, qualifying it under HTS 2933.19.4500 as a pyrazole-based drug. This classification applies to pure chemical compounds intended for pharmaceutical use.
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
• Obtain FDA Drug Master File (DMF) and ensure API meets cGMP standards with full impurity profile documentation
• Provide Certificate of Analysis (CoA) confirming pyrazole structure and pharmacological purity above 99%
• Avoid misclassification as finished dosage forms; declare as bulk API to prevent higher Chapter 30 duties