Anticonvulsants, hypnotics and sedatives
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Anticonvulsants, hypnotics and sedatives
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2933.99.65.00
Diazepam (Valium)
Diazepam is a benzodiazepine derivative classified as a sedative and hypnotic, featuring a fused benzene and diazepine ring system with nitrogen hetero-atoms. It falls under HTS 2933.99.65.00 as an aromatic heterocyclic compound primarily used for its central nervous system effects as an anticonvulsant, hypnotic, and sedative. This pure chemical form is imported for pharmaceutical manufacturing.
Clonazepam (Klonopin)
Clonazepam is a nitrobenzodiazepine anticonvulsant and sedative with a 1,4-benzodiazepine ring containing two nitrogen hetero-atoms. Classified under HTS 2933.99.65.00 for its primary CNS effects including anti-epileptic and hypnotic properties. Imported as active pharmaceutical ingredient (API) powder.
Lorazepam (Ativan)
Lorazepam, a 2-chloro-1,4-benzodiazepine, acts as an intermediate-acting sedative-hypnotic and anticonvulsant with nitrogen-containing heterocyclic rings. Falls under HTS 2933.99.65.00 as an aromatic drug primarily affecting the CNS. Bulk API imported for tablet/capsule production.
Zolpidem Tartrate
Zolpidem, an imidazopyridine hypnotic, features a bicyclic nitrogen-heterocyclic structure modified with aromatic rings. Classified in HTS 2933.99.65.00 as a sedative primarily affecting CNS via GABA receptor modulation. Imported as tartrate salt API for immediate-release tablets.
Phenobarbital
Phenobarbital, a barbituric acid derivative, contains a pyrimidine ring with two nitrogen hetero-atoms, functioning as both anticonvulsant and sedative. Falls under HTS 2933.99.65.00 as an aromatic heterocyclic CNS drug. Long-acting barbiturate API imported in crystalline powder form.
Alprazolam (Xanax)
Alprazolam, a triazolobenzodiazepine, features a fused 1,2,4-triazole and 1,4-diazepine ring system with multiple nitrogen hetero-atoms. HTS 2933.99.65.00 classification for its anxiolytic, sedative, and anticonvulsant properties. High-potency API imported for oral dosage forms.
Zaleplon
Zaleplon, a pyrazolopyrimidine hypnotic, contains fused five- and six-membered nitrogen heterocyclic rings with sedative CNS effects. Classified under HTS 2933.99.65.00 as modified aromatic drug for sleep induction. Ultra-short acting non-benzodiazepine API.
Clobazam
Clobazam, a 1,5-benzodiazepine, differs from 1,4-isomers with distinct anticonvulsant profile and sedative properties via nitrogen heterocyclic rings. HTS 2933.99.65.00 for aromatic CNS drugs. Used primarily in epilepsy treatment.