SPL Set ID: 687bcf42-f437-42c7-8909-a91f621f55df

Hydroxyprogesterone Caproate Injection, USP is a sterile, long-acting preparation of the caproate ester of the naturally- occurring progestational hormone, hydroxyprogesterone, in an oil solution for intramuscular use. The chemical name for hydroxyprogesterone caproate is pregn-4-ene-3,20-dione, 17[(1-oxohexyl)oxy]. It has a molecular formula of C 27 H 40 O 4 and a molecular weight of 428.60. Hydroxyprogesterone caproate exists as white or creamy white crystalline powder. The structural formula is: Each 5 mL multiple-dose vial contains hydroxyprogesterone caproate, 250 mg/mL, in castor oil (28.6% v/v) and benzyl benzoate (46 % v/v) with the preservative benzyl alcohol (2% v/v). Chemical Structure