Treprostinil from Canada
Treprostinil is a stable prostacyclin analogue for pulmonary hypertension via multiple administration routes. Falls under HTS 2937.50.00.00 as a prostaglandin structural analogue with hormonal activity. Tricyclic structure maintains classification.
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
• Specify salt form (sodium/diolamine); each classifies with parent compound
• Multi-route use (SC/IV/inhaled) requires comprehensive stability across formulations
• Document benzindole ring system confirming prostacyclin analogue status