Subheading 25 of 27 in heading 2933
Levorphanol is a Schedule II opioid analgesic used in pain management, and its INN designation signals that imports are subject to both FDA drug admissibility review and DEA import authorization as a controlled substance. All US imports enter under the single tariff line 2933410000. India and Denmark are the documented leading suppliers, reflecting India's active pharmaceutical ingredient manufacturing capacity and Denmark's established pharmaceutical export sector. Classification is straightforward given the dedicated heading, but regulatory compliance — including DEA quota allocation — is the primary complexity for importers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. As a Schedule II controlled substance, levorphanol is subject to DEA import quotas and requires an advance import permit. FDA admissibility review applies separately to ensure the active pharmaceutical ingredient meets applicable standards. Importers should engage both agencies well in advance of shipment. Consult a licensed customs broker or regulatory counsel familiar with controlled substance imports.
Levorphanol has its own dedicated HS6 heading (293341) and a single 10-digit line (2933410000), unlike many opioid-related compounds that fall into broader NESOI categories. This specificity reduces misclassification risk but means any shipment of levorphanol or its salts — regardless of salt form — must be declared under that single line.
Trade Directory
List your company under HS 293341 — Levorphanol and Its Salts, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share |
|---|---|---|---|---|
| 2933410000 | Levorphanol (Inn) and Its Salts | — | -- | -- |
Imports · August 2026
origin
customs district
destination
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rate provision · imports
None recorded for this period.
ImportsExports
Imports
—YoY · free account
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Low of 2 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 2 of 12 months reported, exports 4 of 12 months reported. Source: U.S. Census Bureau.