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Erythromycin Lactobionate from Mexico

Erythromycin lactobionate is a water-soluble salt of erythromycin used intravenously for serious bacterial infections in hospital settings. Classified under HTS 2941.50.00.00 as a derivative salt of the antibiotic erythromycin per chapter notes on organic compounds. It qualifies as a separate chemically defined compound for pharmaceutical use.

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

Provide Drug Master Files (DMF) and stability data during customs clearance; label as 'not for direct human use' if bulk

Watch for contamination risks in transport