Now Foods Riboflavin 400mg Sustain Release from Mexico
Sustained-release 400mg Vitamin B2 tablets from modified aromatic synthesis for extended migraine prevention therapy. HTS 3004.50.10.00 as retail measured dose single vitamin product.
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 release profile data proving sustained therapeutic delivery
• Matrix composition disclosure for FDA active ingredient verification
• Higher potency requires stricter purity assays