Premarin Intravenous Injection 25 mg Vial ** Refrigerated ProductPremarin Intravenous Injection is used primarily to manage acute bleeding related to abnormal uterine bleeding in patients who cannot take oral estrogens. It contains conjugated estrogens that help stabilize the endometrial lining and reduce bleeding effectively. This treatment is particularly beneficial in emergency situations where rapid estrogen supplementation is necessary to quickly control severe bleeding and prevent further complications.