The efficacy of 4 different regimens for the treatment of 55 patients with oligospermia was compared with an untreated control group of 50 patients. The following treatments were evaluated: 1. Proviron (Mesterolon) 2. Proviron-Anteron (Serumgonadotropin) 3. Rovignon (Vitamin A 30 000 I.U., Vitamin E, 70 mg) 4. Angiotri-B (HCl- of l-arginine, 250 mg. Vitamin B1, 100 mg. Vitamin B6, 100 mg. Vitamin B12, 250 mg) Statistical analysis did not show any difference between the spermatograms of the control group and any of the treated patients.