Erythromycin Succinate from Mexico
Erythromycin succinate is a succinic acid salt of erythromycin used in combination therapies for acne and whooping cough. Classified under HTS 2941.50.00.00 as an erythromycin salt derivative, chemically defined organic antibiotic. Supplied as micronized powder for suspensions.
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
• Certify particle size distribution for bioavailability; comply with bioequivalence data if generic
• Watch customs for controlled substance analogs