How long does it take Medroxyprogesterone or provera tablets to work? Dr.proscribe to get bleeding to stop? Volunteer research participants are the heart of all CeMCOR research. Participants are invited to provide feedback on study processes, to learn their own results and at the end of a study, be the first to hear what the whole study found. Hi it isn't unusual for it to take a little while for the provera to work as required. One thing that worries me slightly is the recommendation that it shouldn't be used in menstrual 'disorders' that are undiagnosed. How to use Medroxyprogesterone ACETATE. Read the Patient Information Leaflet provided by your pharmacist before you start using this drug and each time you get a refill. Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Scalzo on how long does it take for side effects from clonidine to go away: In 6-20 hours half the Clonidine gone. That's 1 half life. In 4-6 half lives most of the medicine should be gone and hopefully your side effects as well! Helpful, trusted answers from doctors: Dr. Harris on how long after stopping depo will i get my period: Some resume immediately. Some do not resume normal periods until up to 12 months. Since you are 51 you may vary even more as the effects of menopause and perimenopause may be an issue. After stopping birth control, you may be wondering how long it takes to get pregnant? Learn when fertility returns with each birth control method. Affiliate Disclosure This website contains affiliate links, which means Chris may receive a percentage of any product or service you purchase using the links in the articles or advertisements. How to use Provera. Read the Patient Information Leaflet provided by your pharmacist before you start using this drug and each time you get a refill. Patient Information About depo-subQ provera 104™ medroxyprogesterone acetate injectable suspension 104 mg/0.65 mL WHAT IS THE MOST IMPORTANT INFORMATION I SHOULD.