Merital is a recently introduced antidepressant agent which is structurally unrelated to the traditional antidepressant agents and which is reported to have minimal side effects. This study aimed to establish the olerance of a single compared to a spaced dose .schedule of Merital. It was found that a single morrung dose of Merital 100 mgs compared to a similar dose of the drug given in two divided doses did not appreciably increase the frequency or severity of side effects.