Travoprost from Canada
Travoprost is a synthetic prostaglandin F2α isopropyl ester analogue for glaucoma therapy. Classified under HTS 2937.50.00.00 following Chapter 29 ester rules (classifies with parent acid-function compound). Used primarily for its hormonal IOP-lowering effect.
Duty Rate — Canada → 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
• Classify ester with parent prostaglandin per Chapter Note; include hydrolysis confirmation
• Provide prodrug metabolism data demonstrating active prostaglandin formation
• Avoid bulk liquid classification issues; specify solid API form clearly