2933.99.55.10 - Tolmetin

This HTS category, 2933.99.55.10, specifically classifies the active pharmaceutical ingredient known as Tolmetin. Tolmetin is a nonsteroidal anti-inflammatory drug (NSAID) primarily used for its analgesic, antipyretic, and anti-inflammatory properties. Its classification under this heading signifies that it is an organic chemical compound belonging to the heterocyclic class, featuring nitrogen heteroatoms and exhibiting aromatic or modified aromatic characteristics, and is designated for use as a drug, specifically within the subcategory of agents affecting the central nervous system, including those used as analgesics, antipyretics, and nonhormonal anti-inflammatory agents.

This specific classification distinguishes Tolmetin from its closely related sibling entries. For instance, 2933.99.55.20 covers Tolmetin sodium dihydrate, which includes the sodium salt of Tolmetin with two molecules of water of hydration. Similarly, 2933.99.55.30 classifies the anhydrous form of Tolmetin sodium, meaning the sodium salt without any bound water. The catch-all category, 2933.99.55.90, is reserved for any other related substances that do not precisely fit the defined forms of Tolmetin or its sodium salts.

As this node represents a leaf node within the HTS classification, there are no further subcategories. The classification criteria therefore focus on the precise chemical identity of Tolmetin itself. When classifying, it is crucial to confirm that the imported substance is indeed Tolmetin and not one of its salt forms or a different pharmaceutical agent, ensuring accurate duty assessment and regulatory compliance.