Analysis of information sources in references of the Wikipedia article "Medroxyprogesterone acetate" in English language version.
[...] medroxyprogesterone acetate, also known as Provera (discovered simultaneously by Searle and Upjohn in 1956) [..]
Perhaps surprisingly, a consensus seems to be emerging that depot medroxyprogesterone acetate implants do not in fact result in an increase in the incidence of depression or in the severity of pre-existing depression, even after 1 or 2 years, nor do they cause significant weight gain.
17α-Hydroxyprogesterone caproate is a depot progestogen which is entirely free of side actions. The dose required to induce secretory changes in primed endometrium is about 250 mg. per menstrual cycle.
Medroxyprogesterone [acetate] has similarly been shown to increase appetite and food intake with stabilization of body weight at a dose of 1000 mg (500 mg twice daily).13 Although the drug may be used at 500 to 4000 mg daily, side effects increase above oral doses of 1000 mg daily.16
One of these is medroxyprogesterone acetate, which is sold in the United States by Upjohn as Provest, and is obtainable abroad as Provestral, Provestrol, Cyclo-Farlutal, and the more frankly suggestive Nogest.
Upjohn meanwhile, had been repeatedly seeking FDA approval for use of DMPA as a contraceptive, but applications were rejected in 1967, 1978 and yet again in 1983, [...]
The results showed that after injection the concentration of plasma MA increased rapidly. The meantime of peak plasma MA level was 3rd day, there was a linear relationship between log of plasma MA concentration and time (day) after administration in all subjects, elimination phase half-life t1/2β = 14.35 ± 9.1 days.
Another common patient tolerability concern reported with hormonal contraception is the effect on mood [95]. The majority of published reports indicate that DMPA does not cause depressive symptoms. In a large, 1-year, clinical trial of DMPA in 3857 US women, fewer than 2% of users reported depression [15]. Other reports in various settings, including a private practice [96], adolescent clinics [97,98], a psychiatric hospital [99] and inner-city family-planning clinics [100,101], have not found an adverse effect of DMPA on depression. [...] Using a variety of objective indices for depressive symptoms, the overall data for both OCs and DMPA are supportive that these agents have no significant effect on mood. Although history of mood symptoms prior to OC use may predispose a subgroup of women to negative mood changes, the data for DMPA suggest that even women who have depressive symptoms prior to treatment can tolerate therapy with no exacerbation of these symptoms.
The sublingual route was chosen to avoid any irregular absorption that might result from simultaneous food intake.
Original Approvals or Tentative Approvals: 09/23/1960.
Despite the efficacy and increasing acceptability of these long-term methods, some clinicians and women are reluctant to use them because of concerns regarding reduction in bone density with DMPA, and depressive symptoms and body weight issues with both injectables and implants. Recent multicenter experience showed no increase in depressive symptoms after 1 year's DMPA use and 2 years' Norplant use, even among users with the highest mean depressive symptom scores pre-therapy.
Another common patient tolerability concern reported with hormonal contraception is the effect on mood [95]. The majority of published reports indicate that DMPA does not cause depressive symptoms. In a large, 1-year, clinical trial of DMPA in 3857 US women, fewer than 2% of users reported depression [15]. Other reports in various settings, including a private practice [96], adolescent clinics [97,98], a psychiatric hospital [99] and inner-city family-planning clinics [100,101], have not found an adverse effect of DMPA on depression. [...] Using a variety of objective indices for depressive symptoms, the overall data for both OCs and DMPA are supportive that these agents have no significant effect on mood. Although history of mood symptoms prior to OC use may predispose a subgroup of women to negative mood changes, the data for DMPA suggest that even women who have depressive symptoms prior to treatment can tolerate therapy with no exacerbation of these symptoms.
The sublingual route was chosen to avoid any irregular absorption that might result from simultaneous food intake.
When needed, tablets may be administered sublingually†; absorption is adequate by this route.
When needed, tablets may be administered sublingually†; absorption is adequate by this route.
Advantages of DMPA Injectables. 5. Reduced risk of ectopic pregnancy. Compared with women who use no contraceptive at all, women who use DMPA have a reduced risk for having an ectopic pregnancy. Although the overall risk of pregnancy and thus ectopic pregnancy is lowered by DMPA, the possibility of an ectopic pregnancy should be excluded if a woman using DMPA becomes pregnant. One study showed that 1.5% of women who got pregnant on DMPA had an ectopic pregnancy, the same ectopic rate as women who conceived while not using contraception.27
