Product classification

HS code for Diazepam: 2933.91

Heterocyclic compounds, alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont).

Classification of diazepam under HS 2933.91

Diazepam is classified under HS code 2933.91 as a heterocyclic compound with nitrogen hetero-atom(s) only. Chapter 29 of the Harmonized System covers organic chemicals. Within this chapter, heading 2933 is dedicated to heterocyclic compounds containing nitrogen. Subheading 2933.91 specifically names several benzodiazepine derivatives, including diazepam (INN). The classification at this level is reserved for the pure chemical substance or the substance in a bulk, non-dosage form. The International Nonproprietary Name (INN) \"diazepam\" is explicitly listed in the tariff nomenclature, making the classification straightforward for the raw chemical. This classification applies to the active pharmaceutical ingredient (API) before it has been formulated into a finished medicament. It is essential for importers to distinguish between the bulk chemical used in manufacturing and the finished pharmaceutical product, as the regulatory and duty requirements differ significantly between the two categories.

Covers
  • Pure diazepam powder (bulk)
  • Diazepam (INN) for pharmaceutical synthesis
  • Camazepam, chlordiazepoxide, and clonazepam (same subheading)
  • Bulk benzodiazepine derivatives listed in 2933.91
Also under 2933.91
  • Xanax (Alprazolam)
  • Valium (Diazepam)
  • Klonopin (Clonazepam)
  • Rohypnol (Flunitrazepam)

Codes often confused with 2933.91

Common mistake. The most frequent misclassification occurs when diazepam is imported in tablet, capsule, or injectable form. In these cases, it should be classified under HS code 3004.90 as a medicament put up in measured doses for retail sale. Another error is using the general heterocyclic code 2933.99, which is incorrect because diazepam is specifically named in the 2933.91 subheading.

3004.90Medicaments; consisting of mixed or unmixed products n.e.c. in heading no. 3004, for therapeutic or prophylactic uses, packaged for retail sale2933.99Heterocyclic compounds; n.e.c. in headings no. 2933

Top exporters and importers of HS 293391 (the code used for diazepam), 2025

In 2025, the largest exporter of HS 293391 (the code used for diazepam) in UN Comtrade data was Italy, with 31% of world exports; the largest importer in UN Comtrade data was Italy, with 18% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 293391, not only diazepam.

Top exporters 2025 · share of world exports

  1. 1 Italy $51M
  2. 2 United States $47M
  3. 3 India $19M

World total: $164M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Italy $29M
  2. 2 Germany $21M
  3. 3 Belgium $15M

World total: $158M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for diazepam

Brazil splits HS 2933.91 into 36 NCM codes. Pick the one that matches your product:

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about diazepam

What is the HS code for Diazepam?

The HS code for Diazepam is 293391 (Heterocyclic compounds; alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont)). The HS code for bulk diazepam is 2933.91. If it is in a finished dosage form like tablets, it is classified under 3004.90.

How do I classify Diazepam for customs?

Diazepam is classified under HS code 293391 — Heterocyclic compounds; alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont). This is a 6-digit subheading level code.

Is a prescription required for importing diazepam?

Yes, as a controlled substance (benzodiazepine), diazepam requires specific medical import permits and licenses regardless of its HS code classification.

Which countries are the top exporters of diazepam (HS 293391)?

In 2025, the top exporters of HS 293391 (the code used for diazepam) in UN Comtrade data were Italy ($51M, 31% of world exports), the United States ($47M) and India ($19M). World exports came to about $164M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of diazepam (HS 293391)?

In 2025, the top importers of HS 293391 (the code used for diazepam) in UN Comtrade data were Italy ($29M, 18% of world imports), Germany ($21M) and Belgium ($15M). World imports came to about $158M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Is the HS code for Diazepam the same in all countries?

The base HS code 293391 for Diazepam is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for diazepam in Brazil?

Brazil splits HS 293391 into 36 NCM codes, so the right one for diazepam depends on the product's details: 2933.91.11 (Alprazolam), 2933.91.12 (Camazepam), 2933.91.13 (Clonazepam), 2933.91.14 (Clorazepate), 2933.91.15 (Chlordiazepoxide), 2933.91.19 (Salts of alprazolam, camazepam, clonazepam etc), and more.