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Cromolyn Sodium Ophthalmic Solution

Mast cell stabilizer eye drops preventing allergic ocular reactions, put up in measured doses for retail sale. Affects eyes, HTS 3004.90.92.73.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+100.0%100%
🇲🇽MexicoFree+100.0%100%
🇨🇦CanadaFree+100.0%100%
🇩🇪GermanyFree+15.0%15%
🇯🇵JapanFree+15.0%15%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3004.90Same rate: 100%

If antihistamine specific

Pure antihistamines sub-grouped.

2924.29Lower: 19% vs 100%

If carboxyamide bulk

Chemical intermediates Chapter 29.

3822.19.00Lower: 12.5% vs 100%

If diagnostic only

Diagnostic reagents excluded.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Low side-effect profile but still Rx in some countries

• Tonicity adjustment certs for comfort

• Prophylactic vs acute use labeling