Aromatic Angiotensin Receptor Blocker Losartan Potassium from Mexico
Losartan potassium is an angiotensin II receptor blocker with biphenyl aromatic structure for hypertension. Falls under 2942.00.05.00 as aromatic drug per Chapter 29 salt rules. Pure API excludes finished product classification.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals: patented pharma articles — 100% floor rate
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
• Potassium salt follows organic acid per Note 5(C)(1)
• Provide RAAS pathway documentation supporting drug function
• Ensure moisture-proof packaging maintains chemical purity