2933.99.55 - Analgesics, antipyretics and nonhormonal anti-inflammatory agents

This HTS classification, 2933.99.55, encompasses organic chemical compounds that are heterocyclic, meaning they contain nitrogen heteroatoms within their ring structures, and are specifically designated as analgesics, antipyretics, and nonhormonal anti-inflammatory agents. These substances are primarily used for their medicinal properties to alleviate pain, reduce fever, and combat inflammation without hormonal action. The classification applies to the chemical compounds themselves in their pure or bulk form, prior to their formulation into finished pharmaceutical products.

Within the broader category of "Heterocyclic compounds with nitrogen hetero-atom(s) only," this subcategory is distinguished by its specific therapeutic function. Unlike sibling categories such as antidepressants, tranquilizers, psychotherapeutic agents, or anticonvulsants, hypnotics, and sedatives (2933.99.65), which target the central nervous system's mood, anxiety, and sleep regulation, this group focuses on pain, fever, and inflammatory response modulation. The "Other" designation at this level indicates these compounds are not specifically listed under more granular headings within the "Drugs" classification.

The subcategories under 2933.99.55 provide for specific forms of the drug Tolmetin and its derivatives. This includes the base compound, Tolmetin (2933.99.55.10), as well as its sodium salt in both dihydrate (2933.99.55.20) and anhydrous (2933.99.55.30) forms, reflecting common variations in pharmaceutical preparation. The "Other" subcategory (2933.99.55.90) captures any other analgesics, antipyretics, or nonhormonal anti-inflammatory agents within this heterocyclic chemical family that do not fall under the more specifically defined Tolmetin variants.