USP Lithium Carbonate for Bipolar Medication API from Mexico
Ultra-pure USP lithium carbonate serving as the active pharmaceutical ingredient (API) in medications like lithium citrate for mood stabilization. Classified in HTS 2836.91.0010 as it meets USP purity for lithium carbonates of inorganic bases, per Chapter notes.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Submit Drug Master File (DMF) references if applicable for API imports
• Test for heavy metals per USP <231> to comply with FDA
• Pitfall: bulk packaging without child-resistant features may trigger retail prep reclassification