Riboflavin Effervescent Tablets 200mg from Mexico
200mg Vitamin B2 effervescent tablets from synthetic aromatic sources, dissolving in water for migraine prophylaxis intake. Under HTS 3004.50.10.00 as single vitamin in measured retail therapeutic doses.
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
• Test for effervescence consistency and provide dissolution profiles
• Classify as unmixed if B2 is sole active; list all excipients accurately
• Humidity control critical during shipping to prevent degradation