RESUMO
9,10-Dihydro-10-(1-methyl-4-piperidylidene)-9-anthrol (danitracen, WA 335) is a substance with a stronger peripheral and partly central antiserotonin and antihistamine effect than cyproheptadine. In 5 different hospitals, WA 335 (3 X 1 mg/die) was investigated versus amitriptyline (3 X 50 mg/die) in a double-blind study in 116 depressive patients of different nosology. In the end of the investigation period (20 days), under WA 335 treatment 67.7% and under ami-riptyline treatment 66.7% of the patients showed an improvement of 50% = decrease in the Hamilton depression score. However, a decrease of 50% in the selfrating scale (von Zerssen) was only shown by 57% of the patients under WA 335 administration and 51% under amitriptyline administration. There were no significant differences seen as regards course and side effects of the two drugs. Like amitriptyline, WA 335 shows sedative properties at the beginning of therapy.