Methadone Phosphate from China
Methadone phosphate provides a buffered salt form for oral solutions in opioid maintenance programs. It is a salt of methadone (INN) and is classified under tariff item 2922.31.00 as a salt of a named amino-ketone, per the salt rules in chapter note 5.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the phosphate salt is stoichiometrically correct and free of excess phosphoric acid, which could alter classification
• As a controlled substance, methadone phosphate requires a Health Canada permit
• Include the INN and salt form on all customs declarations to avoid delays