Phenobarbital USP
Phenobarbital is a barbituric acid derivative used primarily as an anticonvulsant and sedative medication. It falls under HTS 2933.54.00.00 as a derivative of malonylurea (barbituric acid). This classification applies to the pure chemical compound in pharmaceutical-grade form.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as finished tablets or capsules
Medicaments in dosage form containing phenobarbital are classified in Chapter 30 based on therapeutic use.
If part of veterinary medicaments in dosage form
Veterinary preparations containing barbiturates are classified under heading 3004.
If classified as purine derivatives instead
Some customs may interpret certain structural analogs under different pyrimidine subheadings.
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
• Obtain DEA import permit as phenobarbital is a Schedule IV controlled substance
• Provide certificate of analysis confirming USP purity and barbituric acid structure
• Avoid misclassification as finished dosage forms which fall under Chapter 30
Related Products under HTS 2933.54.00.00
Phenobarbital Sodium Powder
The sodium salt of phenobarbital, used in injectable formulations and as an intermediate in pharmaceutical manufacturing. Classified under HTS 2933.54.00.00 as a salt of barbituric acid derivatives per Chapter 29 notes.
Pentobarbital Sodium USP
Pentobarbital sodium, a short-acting barbiturate derivative of malonylurea used in veterinary euthanasia and medical sedation. HTS 2933.54.00.00 covers this as a barbituric acid salt.
Secobarbital USP
Secobarbital, a barbituric acid derivative used as a short-acting sedative-hypnotic. Falls under HTS 2933.54.00.00 as a derivative of malonylurea with the characteristic pyrimidine ring structure.
Butabarbital Sodium
Intermediate-acting barbiturate sodium salt used in sedative formulations. Classified as a malonylurea derivative salt under HTS 2933.54.00.00 per Chapter 29 classification rules.
Amobarbital USP
Amobarbital, a long-acting barbituric acid derivative used for sedation and hypnosis. HTS 2933.54.00.00 applies to this pyrimidine-ring containing malonylurea derivative.
Barbital (Barbitone)
Barbital, the diethyl derivative of barbituric acid, historically used as a sedative. Pure chemical form classified under HTS 2933.54.00.00 as a malonylurea derivative.