ANTIDEPRESSANTS AND MEMORY - A REVIEW

Antidepressant medications have been in general use since the late 1950s. Many patients are treated as outpatients and often continue with their normal routines during treatment. Individuals may undertake activities where any change in memory functioning, negative or positive, might have important consequences. Furthermore, many anti-depressants have similar efficacy. Information about differential effects upon memory would seem valuable information for the clinician to have at his or her disposal. This paper reviews available evidence on the effects of antidepressants on human memory. Many studies have involved the single or short-term administration of antidepressants to healthy volunteers, thereby not acknowledging that depression per se has a negative impact on memory processes. Even in the studies on patient samples, groups vary with regard to type and severity of depression, dosage and duration of treatment. Limited evidence, however, does suggest that antidepressants may exert differential effects upon memory functioning which could be predicted from their action on specific neurotransmitter system.