May 24, 2017
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Premarin Injection

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Premarin Injection

How Supplied


Premarin Intravenous (conjugated estrogens, USP) for injection is indicated in the treatment of abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology.

Premarin Intravenous is indicated for short-term use only, to provide a rapid and temporary increase in estrogen levels.


For treatment of abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology:

One 25 mg injection, intravenously or intramuscularly. Intravenous use is preferred since more rapid response can be expected from this mode of administration. Repeat in 6 to 12 hours if necessary. The use of Premarin Intravenous for injection does not preclude the advisability of other appropriate measures.

One should adhere to the usual precautionary measures governing intravenous administration. Injection should be made SLOWLY to obviate the occurrence of flushes.

Infusion of Premarin Intravenous for injection with other agents is not generally recommended. In emergencies, however, when an infusion has already been started it may be expedient to make the injection into the tubing just distal to the infusion needle. If so used, compatibility of solutions must be considered.

COMPATIBILITY OF SOLUTIONS: Premarin Intravenous is compatible with normal saline, dextrose, and invert sugar solutions. It is not compatible with protein hydrolysate, ascorbic acid, or any solution with an acid pH.

Directions For Storage And Reconstitution

STORAGE BEFORE RECONSTITUTION: Store package in refrigerator, 2° to 8°C (36° to 46°F).

TO RECONSTITUTE: Reconstitute Premarin Intravenous with 5 mL of Sterile Water for Injection, USP. Introduce the sterile diluent slowly against the side of SECULE vial and agitate gently. Do not shake violently. Use immediately after reconstitution.


NDC 0046-0749-05–Each package provides one SECULE vial containing 25 mg of conjugated estrogens, USP, for injection (also lactose 200 mg, sodium citrate 12.2 mg, and simethicone 0.2 mg). The pH is adjusted with sodium hydroxide or hydrochloric acid.

Premarin Intravenous (conjugated estrogens, USP) for injection is prepared by cryodesiccation.

SECULE-Registered trademark to designate a vial containing an injectable preparation in dry form.

Distributed by: Wheth Pharmaceuticals Inc., A subsidiary of Pfizer Inc, Philadelphia, PA 19101. Rev 04/2012

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 5/2/2012

How Supplied

Additional Premarin Injection Information

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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