Drospirenone from Canada
Drospirenone is a synthetic spironolactone analogue with progestogenic and antimineralocorticoid activity, used in oral contraceptives. Classified in HTS 2937.23.5050 as a steroidal progestin derivative used primarily as a hormone. Its unique structure still qualifies under Chapter 29 hormone provisions.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify Form I vs Form II crystals; affects bioavailability and tariff docs
• Test for aldosterone antagonism potency to confirm hormonal function
• Maintain 2-8°C throughout supply chain to preserve polymorphic stability