Compare Provera vs. Femring

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(Estradiol Acetate Vaginal Ring)

Regulates your menstrual cycle and supplements estrogen treatments for menopause. Provera (Medroxyprogesterone) works well to regulate your menstrual cycle and stop irregular bleeding. It also protects the uterus from estrogen's harmful effects.Relieves hot flashes and vaginal dryness due to menopause. Femring (Estradiol Acetate Vaginal Ring) is a vaginal ring that may be less of a hassle than estrogen pills, gels, patches, or vaginal creams, but comes with the same side effects.
How it works
Provera (Medroxyprogesterone) contains medroxyprogesterone, a progesterone hormone that works to balance hormone changes in the body. In premenopausal women, it prevents thickening of the uterus lining and regulates your menstrual cycle. It's also added to hormone therapy to protect the uterus from the harmful effects of estrogen.Femring (Estradiol Acetate Vaginal Ring) is a vaginal ring that replaces estrogen hormones in your vagina that your body loses during menopause. Estrogen helps rebuild and maintain vaginal tissue, relieving symptoms of vaginal dryness, soreness, irritation, and painful sex.
Type of medication
Hormone replacement
Prescription only
Hormone replacement
Estrogen derivative
Prescription only
Available as
  • Pill
  • Vaginal ring
Used for (click to learn more)
  • Amenorrhea
  • Hot flashes and night sweats
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Reviews & ratings
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Reviews for Femring (Estradiol Acetate Vaginal Ring)
30% vs. Provera (Medroxyprogesterone)
20% vs. Provera (Medroxyprogesterone)
+16% vs. Provera (Medroxyprogesterone)
Side effects

We haven’t found good data for Provera side effects.

FDA side effect reports for Provera »
  • Breast tenderness 9%
  • Vaginal candidiasis 8%
  • Vaginal bleeding between periods 8%
  • Abdominal distension 4%
  • Uterine pain 4%
  • Urinary tract infection 2%
  • Sinus inflammation 2%
  • Back pain 2%
  • Headache 1%
More Femring side effects »
Risk factors for serious side effects
  • Personal or family history of breast cancer
  • Family history of ovarian cancer
  • Personal or family history of blood clots
  • Smoking
  • Obesity
  • Hypertension
  • Diabetes
  • High cholesterol
  • Systemic lupus erythematosus (SLE)
  • History of depression
  • History of liver problems
  • Women of childbearing age
Detailed Provera (Medroxyprogesterone) risks & warnings »
  • Using estrogen for more than one year
  • Personal or family history of breast cancer
  • Duration of use
  • Personal or family history of blood clots
  • Obesity
  • Systemic lupus erythematosus (SLE)
  • Smoking
  • Obesity
  • High blood pressure
  • High blood sugar
  • High cholesterol
  • Age 50 or older
  • Women of childbearing age
  • High levels of triglycerides
Detailed Femring (Estradiol Acetate Vaginal Ring) risks & warnings »
Pregnancy category
No specific alcohol-related info.No specific alcohol-related info.
No specific food-related info.No specific food-related info.
Kidneys and liver
No specific kidneys and liver-related info.No specific kidneys and liver-related info.
No specific sex-related info.
  • Femring (Estradiol Acetate Vaginal Ring) relieves vaginal dryness and irritation to make sex more enjoyable.
  • You don’t have to remove Femring (Estradiol Acetate Vaginal Ring) to treat a vaginal infection or have sex.
No specific sleep-related info.No specific sleep-related info.
  • Can cause headache, weight gain, breast tenderness, or changes in mood.
No specific weight-related info.
Upsides and benefits
  • Provera (Medroxyprogesterone) can be used to treat multiple hormone problems in women.
  • After menopause, taking estrogen raises your risk of uterine cancer. However, taking progesterone, like in Provera (Medroxyprogesterone), along with estrogen gives you the positive effects of estrogen, but also prevents it from damaging your uterus.
  • Women taking an estrogen/progestin combination medications have a lower risk of uterine cancer.
  • Femring (Estradiol Acetate Vaginal Ring) relieves vaginal dryness and irritation to make sex more enjoyable.
  • Works locally in the vagina and doesn't expose the rest of your body to estrogen like pills do.
  • Good option for people who don't want to take oral pills.
  • Generally works well with fewer side effects.
  • Many women think Femring (Estradiol Acetate Vaginal Ring) is easy to insert and comfortable to use.
  • In a 12-week study, Femring (Estradiol Acetate Vaginal Ring) worked well to improve vaginal problems, reduced pain during urination, and sudden urges to urinate.
  • Femring (Estradiol Acetate Vaginal Ring) slowly releases estrogen over the 90 days the ring is in place, so you only have to remove and insert a new one every three months.
Downsides and risks
  • You can't take Provera (Medroxyprogesterone) if you've had a hysterectomy (your uterus removed). You also can't take it if you're pregnant or breastfeeding, have unusual vaginal bleeding, or have a history of blood clots, certain kinds of cancer, stroke, heart attack, liver problems, or bleeding problems.
  • Femring (Estradiol Acetate Vaginal Ring) may not be the best estrogen product if you have a narrow vagina or frequent vaginal infections.
  • The ring can fall out without you noticing it.
  • Increases your risk of endometrial (uterine cancer).
  • If you have your uterus, you might need to use Femring (Estradiol Acetate Vaginal Ring) with another hormone called progestin to lower your risk of uterine cancer.
  • Can be expensive since it's only available as a brand name product.
Tips from our pharmacists for people taking the medication
  • The dose of Provera (Medroxyprogesterone) will be different depending on what you’re using it for, so take it exactly the way your doctor tells you.
  • Talk to your doctor every few months about using the lowest possible dose of Provera (Medroxyprogesterone). Since there can be a lot of long-term side effects, take it only as long as you need it.
  • Can cause headache, weight gain, breast tenderness, or changes in mood.
  • If you're taking Provera (Medroxyprogesterone) to regulate your period, you'll get withdrawal bleeding 3 to 7 days after stopping Provera (Medroxyprogesterone).
  • Insert the ring as deeply as possible into your vagina. You shouldn't feel the ring once it's inserted.
  • The ring is good for 90 days in your vagina. If it falls out before the 90 days are up, just clean it with warm water and reinsert.
  • You don’t have to remove Femring (Estradiol Acetate Vaginal Ring) to treat a vaginal infection or have sex.
  • It can take up to 2 to 3 weeks to feel the full benefits.
  • Most people don't have many side effects, but temporary nausea, dizziness, bloating, and breast tenderness are possible.
  • Tell your doctor about any unusual vaginal bleeding.
Learn more
More about ProveraSide effectsReviews & ratingsAlternativesFDA package insert
More about FemringSide effectsReviews & ratingsAlternativesFDA package insert