Dupilumab Drug Substance from Mexico
Dupilumab IL-4/IL-13 inhibitor for atopic dermatitis and asthma. Biotech unmixed immunological HTS 3002.13.0090.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Dual cytokine specificity docs
• -80°C preferred storage
• No diagnostic claims