Low-dose oral contraceptive to re-induce menstrual bleeding in amenorrheic women on DMPA treatment: a randomized clinical trial

Med Sci Monit. 2006 Oct;12(10):CR420-5. Epub 2006 Sep 25.

Abstract

Background: Depot medroxy progesterone acetate (DMPA) is one of the most reliable contraceptive methods with a failure rate less than 0.3 percent. It is injected every three months and Although it has many advantages over many other hormonal contraceptives, But a major disadvantage of it is bleeding disorders which comprise most of the discontinuance reasons. Our Aim was to study bleeding complications of DMPA when used as a contraceptive in Ardabil district and clinical trial of LD and Ethynil oestradiol in controlling these complications.

Material/methods: All the 917 women who referred to ardabil's health centers for having a DMPA injection for the first time, were entered into a longitudinal study. Those complaining of menstrual cessation were entered into a double blinded randomized clinical trial. Data were collected by means of 9 questionnaires 7 of them used for descriptive and 2 for clinical trial study. Data was analyzed by SPSS statistical package.

Results: Those DMPA users with a cesarean section history had a higher chance of bleeding complications. Four hundred forty-four of the 917 women receiving the injection discontinued using it before the end of the study period. The main reason for discontinuation (in 70%) was irregular menstrual bleedings and menstrual cessation. In the clinical trial of women with bleeding cessation, 70% of those receiving the LD-OC pill experienced menstrual bleedings again, compared with only 22.7% in the placebo group. The discontinuation rate in the drug group was lower than in the placebo group as well (p < 0.05).

Conclusions: Treating menstrual cessation caused by DMPA with LDs, improves the complication and decreases the discontinuance rate.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Amenorrhea / chemically induced
  • Amenorrhea / drug therapy*
  • Contraceptives, Oral / administration & dosage*
  • Contraceptives, Oral / adverse effects*
  • Dose-Response Relationship, Drug
  • Female
  • Humans
  • Medroxyprogesterone Acetate / administration & dosage*
  • Medroxyprogesterone Acetate / adverse effects*
  • Menstruation / drug effects*
  • Patient Compliance
  • Treatment Outcome

Substances

  • Contraceptives, Oral
  • Medroxyprogesterone Acetate