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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