Sulfapyridine 500 mg Tablets from Canada
Sulfapyridine tablets used for dermatitis herpetiformis, a sulfonamide with anti-inflammatory properties. Classified under HTS 3004.90.92.11 as anti-infective in dosage form.
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
• Photostability testing required due to light sensitivity
• Monitor for gluten-free formulation if dermatological use
• Rare product; ensure current compendial monograph compliance