Pyrazinamide Micronized Pharmaceutical Powder from Mexico
Micronized pyrazinamide powder specifically listed under HTS 2933.99.4200 provides enhanced bioavailability for TB treatment formulations. Particle size reduction does not affect chemical classification as this named anti-infective heterocyclic drug. Imported for direct compression tablet production.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• PSD (particle size distribution) analysis required to verify micronization doesn't create new chemical entity
• Higher bioavailability grade demands tighter impurity specs (<0.1% pyrazinoic acid)
• Direct compression grade needs flowability documentation for manufacturing validation