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Hydroxyprogestrone Caproate

Hydroxyprogestrone Caproate

Buy Hydroxyprogestrone Caproate

Hydroxyprogesterone caproate is a synthetic steroid hormone that is similar to medroxyprogesterone acetate and megestrol acetate. It is an ester derivative of 17α-hydroxyprogesterone formed from caproic acid (hexanoic acid). Hydroxyprogesterone caproate was previously marketed under the trade name Delalutin by Squibb, which was approved by the U.S. Food and Drug Administration (FDA) in 1956 and withdrawn from marketing in 1999. The U.S. FDA approved Makena from KV Pharmaceutical (previously named as Gestiva) on February 4, 2011 for prevention of preterm delivery in women with a history of preterm delivery, sparking a pricing controversy.

Dosage Modifications

Renal impairment: Not studied in patients with renal impairment

Hepatic impairment: Not studied; product is extensively metabolized in liver; potential for reduce elimination

Preparation And Administration

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Makena is a clear, yellow solution. The solution must be clear at the time of use; replace vial if visible particles or crystals are present.

Hydroxyprogesterone Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

  • Anxiety
  • chest pain
  • cough
  • dizziness or lightheadedness
  • fainting
  • fast heartbeat
  • redness, tenderness, or warmth on the skin
  • troubled breathing


Do not use Hydroxyprogesterone caproate in women with any of the following conditions:

  • Current or history of thrombosis or thromboembolic disorders
  • Known or suspected breast cancer, other hormone-sensitive cancer, or history of these conditions
  • Undiagnosed abnormal vaginal bleeding unrelated to pregnancy
  • Cholestatic jaundice of pregnancy
  • Liver tumors, benign or malignant, or active liver disease
  • Uncontrolled hypertension


Synthetic progestin; produced by esterification of 17α-hydroxyprogesterone, a naturally occurring metabolite of progesterone, with caproic acid.

Has strong progestogenic activity; appears to produce a longer lasting and more potent progestational effect on endometrium than progesterone.

Does not appear to have androgenic, antiandrogenic, estrogenic, or glucocorticoid activity.

Mechanism of action in reducing the risk of recurrent preterm birth not known.