 All patients will be contacted weekly in person or by phone during the medication phase to assess general condition, current symptoms and compliance. Female participants will also be asked if there is a possibility that she may be pregnant. If there is a chance, she will be discontinued from the study medication and asked to return to the clinic for a serum pregnancy test. If the result of this test is positive, she will be followed by the study staff for the remainder of the study. If the result of this test is negative, she will be re-started on the study medication at 1 pill or 10 mg of citalopram or placebo per day. 