Medroxyprogesterone is used to treat abnormal menstruation (periods) or irregular vaginal bleeding. Medroxyprogesterone is also used to bring on a normal menstrual cycle in women who menstruated normally in the past but have not menstruated for at least 6 months and who are not pregnant or undergoing menopause (change of life). Medroxyprogesterone is also used to prevent overgrowth of the lining of the uterus (womb) and may decrease the risk of cancer of the uterus in patients who are taking estrogen. Medroxyprogesterone is in a class of medications called progestins. It works by stopping the growth of the lining of the uterus and by causing the uterus to produce certain hormones.
Medroxyprogesterone comes as a tablet to take by mouth. It is usually taken once a day on certain days of a regular monthly cycle. To help you remember to take medroxyprogesterone, take it at around the same time every day on the days you are scheduled to take it. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take medroxyprogesterone exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Medroxyprogesterone may control your condition but will not cure it. Continue to take medroxyprogesterone according to your monthly schedule even if you feel well. Do not stop taking medroxyprogesterone without talking to your doctor.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Unless your doctor tells you otherwise, continue your normal diet.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
breasts that are tender or produce a liquid
changes in menstrual flow
irregular vaginal bleeding or spotting
acne
growth of hair on face
loss of hair on scalp
difficulty falling asleep or staying asleep
drowsiness
upset stomach
weight gain or loss
pain, swelling, warmth, redness, or tenderness in one leg only
slow or difficult speech
dizziness or faintness
weakness or numbness of an arm or leg
shortness of breath
coughing up blood
sudden sharp or crushing chest pain
fast or pounding heartbeat
sudden vision changes or loss of vision
double vision
blurred vision
bulging eyes
missed periods
depression
yellowing of the skin or eyes
fever
hives
skin rash
itching
difficulty breathing or swallowing
swelling of the hands, feet, ankles, or lower legs
Some laboratory animals who were given medroxyprogesterone developed breast tumors. It is not known if medroxyprogesterone increases the risk of breast cancer in humans. Medroxyprogesterone may also increase the chance that you will develop a blood clot that moves to your lungs or brain. Talk to your doctor about the risks of taking this medication.
Medroxyprogesterone may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
Keep all appointments with your doctor.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking medroxyprogesterone.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Last Reviewed - 08/01/2010
AHFS® Consumer Medication Information. © Copyright, 2012. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.