Promethazine Hydrochloride
Promethazine hydrochloride is a phenothiazine derivative used as an antihistamine, antiemetic, and sedative. It contains a phenothiazine ring-system that is not further fused with other rings, qualifying it for classification under HTS 2934.30.5000 as 'other' compounds with this specific structure.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing a quinoline ring system instead
Quinoline derivatives like certain antihistamines fall under heterocyclic compounds of heading 2933.
If imported as finished dosage form like tablets
Formulated medicaments containing phenothiazines are classified in Chapter 30 as pharmaceuticals.
If in bulk mixture with excipients exceeding 95% purity threshold
Chemical mixtures not meeting pure compound criteria move to Chapter 38 preparations.
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
• Provide certificates of analysis confirming chemical purity and phenothiazine structure to avoid reclassification
• Ensure FDA registration and drug master files are complete for pharmaceutical imports; common pitfall is missing impurity declarations
• Label shipments with exact CAS number (58-88-8) and batch details to facilitate customs clearance
Related Products under HTS 2934.30.50.00
Thioridazine Hydrochloride
Thioridazine hydrochloride, a piperidine phenothiazine, treats schizophrenia with antipsychotic properties. The unfused phenothiazine ring-system defines its placement in HTS 2934.30.5000 as other such heterocyclic compounds.
Methotrimeprazine (Levomepromazine)
Methotrimeprazine, or levomepromazine, is a phenothiazine with strong sedative and analgesic effects used in palliative care. Its hydrogenated phenothiazine ring-system (allowed per heading) fits HTS 2934.30.5000.
Prochlorperazine Edisylate
Prochlorperazine edisylate, a piperazine phenothiazine, treats severe nausea and psychosis. The base phenothiazine structure without fusion aligns with HTS 2934.30.5000 classification.
Chlorpromazine Base
Chlorpromazine is a foundational phenothiazine antipsychotic medication used for schizophrenia and nausea. Its core phenothiazine ring-system without further ring fusion places it under HTS 2934.30.5000 for non-fused phenothiazine compounds.
Promazine Hydrochloride
Promazine hydrochloride is an older phenothiazine tranquilizer used for anxiety and agitation. Classified under HTS 2934.30.5000 due to its non-fused phenothiazine ring-system meeting chapter criteria for heterocyclic compounds.