Methadone Mesylate from Mexico
Methadone mesylate is a methanesulfonic acid salt of methadone, used in liquid formulations for pain relief and substitution therapy. It is a salt of methadone (INN) and is classified under tariff item 2922.31.00 per chapter note 5(C)(1), which directs salts to the heading of the organic compound.
Duty Rate — Mexico → Canada
0%
Import Tips
• Verify that the mesylate salt is a true salt of methadone and not a co-crystal or complex, which could affect classification
• Since methadone is controlled, ensure all permits are in place before shipment
• Provide a detailed specification sheet to CBSA, including the salt stoichiometry and purity