Santonastaso P, Maistrello I, Battistin L
Acta Psychiatr Scand. 1979 Aug;60(2):137-43. doi: 10.1111/j.1600-0447.1979.tb03580.x.
Twenty-eight hospitalized patients with depressive illness entered a double-blind trial to compare viloxazine hydrochloride (Vivalan) with imipramine. Both drugs produced a statistically significant improvement in the depressive symptoms as early as the 7th day, measured by the HRS. A side effects check-list showed no significant difference between Vivalan and imipramine. A lack of anticholinergic effects was noted in the Vivalan group although upper gastro-intestinal side effects were more frequent. Two patients in the Vivalan group withdrew due to gastric symptoms.