Maxipime/Piperacillin Combo Trial Kit from Mexico
Clinical trial kit with piperacillin/tazobactam vials for double-blind studies on resistant infections. Still under HTS 3004.10.50.48 as measured-dose therapeutic medicaments, though chapter notes reference blinded kits in 3006. Specific combo dictates 3004 classification.
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
• IND exemption letter from FDA; declare as 'investigational use only'
• Secure chain of custody for blinded materials; IRB approval docs
• Avoid retail classification pitfalls by specifying trial context