Timolol Maleate / Dorzolamide Combination Eye Drops from China
Fixed-dose combination eye drops containing timolol maleate and dorzolamide for enhanced glaucoma control, in retail dispenser bottles. Despite the mixture, primary classification under HTS 3004.90.92.72 is driven by timolol maleate content for eye therapy in measured doses. This reflects specific chemical identification in the tariff.
Duty Rate — China → 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
• Submit FDA ANDA approval for combo products and list both actives on commercial invoice accurately
• Document quantitative composition of timolol maleate to justify specific HTS subheading
• Prevent delays by pre-clearing with FDA for multi-active ophthalmic imports