Provera is a prescription hormone tablet. Its generic name is medroxyprogesterone acetate, a type of progestin. When a period has stopped, doctors often prescribe it for 5 to 10 days to bring on a bleed. The most common Provera side effects are spotting or irregular bleeding, headache and nausea. Breast tenderness, bloating, acne, mood changes and tiredness also occur. Most settle within a few days of the last tablet. A few warning signs need prompt care, and they are listed below.
Provera tablets are not the Depo-Provera shot
Both contain medroxyprogesterone. The tablets are a short course you take at home. Depo-Provera is a birth-control injection given every three months at a much higher dose, so its effects last far longer, including a delayed return of periods. If your period stopped after the shot, our guide to no period after stopping birth control covers what to expect.
Why your doctor prescribed Provera
When a period is missing, Provera does two jobs. It brings on a withdrawal bleed, and the result gives your doctor useful information. Doctors often call this a Provera challenge.
- Bleeding within about 3 to 7 days of the last tablet usually means your body is making enough estrogen and the uterine lining responds.
- No bleeding can point to low estrogen or another cause, and more tests usually follow.
A bleed on Provera does not show that you ovulated or that your own cycle has returned. Ask your doctor what your result means and what comes next.
Common side effects
The Provera product information lists irregular uterine bleeding, headache and nausea as the most frequently reported reactions. Other reported effects include:
- spotting, or bleeding that starts while you are still taking the tablets
- breast tenderness
- bloating, fluid retention or weight change
- low mood, trouble sleeping or daytime sleepiness
- dizziness
- acne, rash or hair changes
For a 5 to 10 day course, these effects are usually short-lived. Tell your prescriber if you have a history of depression, diabetes, migraine or epilepsy, since Provera can affect mood and blood sugar control.
Get help promptly if you notice
Progestins are rarely linked to blood clots. Seek urgent care for:
- pain or swelling in one leg
- chest pain or sudden shortness of breath
- a sudden severe headache
- sudden changes in vision or speech
Call your doctor about:
- bleeding that soaks a pad in an hour
- yellowing of the skin or eyes
- a possible pregnancy
Who should not take Provera
Provera is not used during pregnancy. The label also rules it out for people with:
- a past blood clot or stroke
- liver disease
- known or suspected breast or genital cancer
- unexplained vaginal bleeding
Make sure your prescriber knows your full history.
Your next questions
How long after Provera will I get my period? Usually 3 to 7 days after the last tablet. Some women start bleeding while still taking it. Ask your prescriber before stopping the course early.
What if no period comes after Provera? Contact your doctor rather than repeating a course on your own. A missing bleed is a signal to look further, usually with hormone blood tests. Our amenorrhea evaluation guide lists the questions to bring.
What else can I do while we look for the cause? The missing period guide covers the basics to check, from sleep and stress to eating enough.
An external routine alongside your care
Some women want a step that involves nothing swallowed while they work through the cause with their doctor. CycleRestore is a sealed herbal pouch worn over the navel, held by a reusable belt and replaced every five days. It does not replace Provera or diagnose the cause, and it is not used during pregnancy.
Dr. Wang’s practice records describe women who reported a return of menstrual bleeding during external pouch use. These were selected, uncontrolled cases with different histories, so they cannot show what caused the change or predict your result. Keep your prescribed plan, and review the ingredient list with your doctor.
See CycleRestore’s directions and evidence →
Reviewed October 2026. Author: Qingcai Wang, MD, PhD, developer of the Five Essences external herbal-pouch formulations, with a commercial interest in their sale. General education only; continue your medical care.
Sources: FDA: Provera labeling (2024); ASRM: evaluation of amenorrhea (2024).