Botulinum Toxin Type A Immune Globulin from Mexico
Antitoxin derived from human plasma fractions containing antibodies against botulinum toxin, used to treat infant botulism. Classified in HTS 3002.12.0090 as an immunological blood fraction for therapeutic neutralization of toxins. It involves biotech purification of specific antisera.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: 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
• Include potency assay results (IU/mg) and neutralization efficacy data for CBP clearance
• Ship frozen (-20°C) with chain-of-custody logs to prevent denaturation
• Differentiate from cosmetic botox; declare therapeutic end-use to stay in 3002.12