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HSChapter 29
Methaqualone and mecloqualone are internationally controlled substances with high abuse potential, listed under the UN Convention on Psychotropic Substances, and their importation into the United States is tightly restricted under DEA Schedule I. Loprazolam and zipeprol, while less notorious, are similarly subject to controlled-substance oversight. All compounds in this heading enter under the single tariff line 2933550000. Switzerland and Denmark are the documented US suppliers, consistent with those countries' roles in producing tightly regulated reference standards and pharmaceutical research materials. Consult a licensed customs broker or DEA counsel before any importation attempt.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Methaqualone is a DEA Schedule I substance, meaning it has no accepted medical use in the US and may only be imported under a DEA researcher's schedule I import authorization for legitimate scientific or analytical purposes. Commercial pharmaceutical importation is not permitted. Consult DEA and a licensed customs broker before any attempt.
Zipeprol is a cough suppressant that has been subject to abuse and is controlled in several jurisdictions, though its DEA scheduling status differs from the Schedule I classification of methaqualone. Importers should verify the current DEA schedule for each specific compound in this heading before shipment, as regulatory status can change and varies by salt form.
Subheading 25 of 27 in heading 2933
Subheading 293355 · $0 of $482.5M
Supplier Network
Get discovered by U.S. importers searching for HS 293355 — Loprazolam, Mecloqualone, Methaqualone, Zipeprol, and Their Salts. Be the first supplier listed.
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2933550000 | Loprazolam (Inn), Mecloqualone (Inn), Etc & Salts | $3K |
ImportsExports
Imports
$0YoY · Pro
Exports
$3KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through December 2025. Source: U.S. Census Bureau.
Imports · December 2025
origin
customs district
destination
None recorded for this period.
entry
None recorded for this period.
rate provision · imports
None recorded for this period.