Evaluating the Effectiveness of Sertraline in Treating Women With Premenstrual Dysphoric Disorder

50 mg of sertraline will be taken at the onset of premenstrual symptoms through the first few days of menses. If a participant shows an insufficient response to this dose, the dose may be increased to 100 mg. Women who report moderate to severe side effects will be allowed to reduce their dose to 25 mg of sertraline and to increase the dose at the next cycle unless rate-limiting side effects continue.

50 mg of placebo will be taken at the onset of premenstrual symptoms through the first few days of menses. If a participant shows an insufficient response to this dose, the dose may be increased to 100 mg.