Conjugated Equine Estrogens (Premarin Active)
Conjugated equine estrogens, known as the active ingredient in Premarin, are natural estrogen sulfates extracted from pregnant mare urine. Used primarily in menopausal hormone replacement therapy, this product is an oestrogen under the tariff item.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is put up in measured doses or for retail sale
Section Note 2 requires classification in heading 30.04.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify as a mixture of isomers of the same organic compound under Chapter Note 1(b)
• Ensure the product is not in retail packaging to avoid reclassification to heading 30.04
• Maintain records of the extraction process and hormonal use for CBSA verification
Related Products under Tariff item 2937.23.00
Bioidentical Progesterone Micronized Powder
Micronized bioidentical progesterone powder derived from Mexican yam sterols, processed to mimic human corpus luteum progesterone. As a progestogen used primarily as a hormone, it falls under this tariff item.
Cyproterone Acetate
Cyproterone acetate is a synthetic steroidal antiandrogen with progestogenic properties, used in hormone therapy for prostate cancer and transgender treatment. As a progestogen derivative used primarily as a hormone, it falls under this tariff item.
Desogestrel
Desogestrel is a synthetic progestogen used in contraceptive pills, imported as a bulk active pharmaceutical ingredient. It is classified under tariff item 2937.23.00 as a progestogen used primarily as a hormone.
Diosgenin-Derived Progesterone Powder
Progesterone powder manufactured via marker degradation of diosgenin extracted from Dioscorea species tubers. This progestogen is used primarily as a hormone and is classified under this tariff item.
Drospirenone
Drospirenone is a synthetic spironolactone analogue with progestogenic and antimineralocorticoid activity, used in contraceptives. It is classified under tariff item 2937.23.00 as a progestogen structural analogue used primarily as a hormone.
Dydrogesterone
Dydrogesterone is a synthetic progestogen with a structure closest to natural progesterone, used for infertility and menstrual disorders. It is classified under tariff item 2937.23.00 as a progestogen structural analogue used primarily as a hormone.