Dronedarone Hydrochloride
Dronedarone hydrochloride, multichannel blocker for atrial fibrillation, has complex nitrogen-heterocyclic structure. Classifies under HTS 2933.99.53.00 as antiarrhythmic cardiovascular drug. Hydrochloride salt imported as Form II crystals.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carboxamide function primary
Oxygen-function carboxylic acid amides have separate classification.
If film-coated tablets
All finished oral solid dosage forms classify under Chapter 30.
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Import Tips & Compliance
• Form II crystalline - Form I less stable for tableting
• Hepatotoxicity risk - include ALT/AST elevation clinical data
• Multi-channel activity - full electrophysiology profile needed
Related Products under HTS 2933.99.53.00
Diltiazem Hydrochloride
Diltiazem hydrochloride is a benzothiazepine derivative calcium channel antagonist used for hypertension, angina, and arrhythmias. Its nitrogen-containing heterocyclic structure qualifies it for HTS 2933.99.53.00 as an aromatic cardiovascular drug. Imported typically as bulk API powder for tablet manufacturing.
Felodipine
Felodipine is a vasoselective dihydropyridine calcium channel blocker for essential hypertension treatment. This aromatic nitrogen-heterocycle classifies under HTS 2933.99.53.00 as a cardiovascular drug in bulk form. Imported as free base or specific polymorphs for extended-release formulations.
Isradipine
Isradipine, a 1,4-dihydropyridine derivative, selectively blocks L-type calcium channels for hypertension therapy. Its nitrogen-heterocyclic aromatic structure fits HTS 2933.99.53.00 as a cardiovascular drug API. Typically imported as micronized powder for tablet coating.
Nifedipine
Nifedipine is the prototype dihydropyridine calcium channel blocker used for angina and hypertension. This nitro-substituted aromatic heterocycle with nitrogen hetero-atoms classifies under HTS 2933.99.53.00. Bulk API imported under nitrogen atmosphere due to light sensitivity.
Nimodipine
Nimodipine is a lipophilic 1,4-dihydropyridine indicated for cerebral vasospasm prevention post-subarachnoid hemorrhage. As a nitrogen-heterocyclic cardiovascular drug, it falls under HTS 2933.99.53.00. Imported as oily liquid or powder for IV and oral formulations.
Pravastatin Sodium
Pravastatin sodium, a hydrophilic HMG-CoA reductase inhibitor, lowers LDL cholesterol in cardiovascular disease prevention. Its complex nitrogen-heterocyclic structure qualifies under HTS 2933.99.53.00 as a cardiovascular drug. Sodium salt form imported as spray-dried amorphous powder.