Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones

Every line of heading 2937

• 2937 Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones.
• 2937.11.00.00 Somatotropin, its derivatives and structural analogues (g): General Free; Special none; Column 2 10%.
• 2937.12.00.00 Insulin and its salts (under: Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues) (g): General Free; Special none; Column 2 10%.
• 2937.19.00.00 Other (under: Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues) (g): General Free; Special none; Column 2 25%.
• 2937.21.00 Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone): General Free; Special none; Column 2 25%.
• 2937.21.00.10 Cortisone (under: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)) (g).
• 2937.21.00.20 Hydrocortisone (under: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)) (g).
• 2937.21.00.30 Prednisone (under: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)) (g).
• 2937.21.00.40 Prednisolone (under: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)) (g).
• 2937.22.00 Halogenated derivatives of adrenal cortical hormones: General Free; Special none; Column 2 25%.
• 2937.22.00.10 Dexamethasone (INN) and its salts (g).
• 2937.22.00.90 Other (under: Halogenated derivatives of adrenal cortical hormones) (g).
• 2937.23 Estrogens and progestins (under: Steroidal hormones, their derivatives and structural analogues).
• 2937.23.10 Obtained directly or indirectly from animal or vegetable materials: General Free; Special none; Column 2 25%.
• 2937.23.10.10 Estrogens (under: Obtained directly or indirectly from animal or vegetable materials) (g).
• 2937.23.10.20 Progesterone (under: Other) (kg).
• 2937.23.10.50 Other (under: Other) (kg).
• 2937.23.25.00 Estradiol benzoate; and Estradiol cyclopentylpropionate (Estradiol cypionate) (g): General Free; Special none; Column 2 15.4¢/kg + 49%.
• 2937.23.50 Other (under: Other): General Free; Special none; Column 2 15.4¢/kg + 78.5%.
• 2937.23.50.10 Estrogens (under: Other) (g).
• 2937.23.50.20 Progesterone (under: Other) (g).
• 2937.23.50.50 Other (under: Other) (g).
• 2937.29 Other (under: Steroidal hormones, their derivatives and structural analogues).
• 2937.29.10.00 Desonide; andNandrolone phenproprionate (g): General Free; Special none; Column 2 15.4¢/kg + 49%.
• 2937.29.90 Other (under: Other): General Free; Special none; Column 2 25%.
• 2937.29.90.20 Salts and esters of hydrocortisone (g).
• 2937.29.90.30 Salts and esters of prednisone (g).
• 2937.29.90.40 Salts and esters of prednisolone (g).
• 2937.29.90.50 Anabolic agents and androgens (g).
• 2937.29.90.95 Other (under: Other) (g).
• 2937.50.00.00 Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues (g): General Free; Special none; Column 2 25%.
• 2937.90 Other (under: Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones).
• 2937.90.05.00 Epinephrine (under: Catecholamine hormones, their derivatives and structural analogues) (g): General Free; Special none; Column 2 15.4¢/kg + 49%.
• 2937.90.10.00 Epinephrine hydrochloride (under: Other) (g): General Free; Special none; Column 2 15.4¢/kg + 49%.
• 2937.90.20.00 Other (under: Other) (g): General Free; Special none; Column 2 25%.
• 2937.90.40.00 l-Thyroxine (Levothyroxine), sodium (kg): General Free; Special none; Column 2 15.4¢/kg + 49%.
• 2937.90.45.00 Other (under: Amino-acid derivatives) (g): General Free; Special none; Column 2 25%.
• 2937.90.90.00 Other (under: Other) (g): General Free; Special none; Column 2 25%.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.