There are many types of medications that harm memory, and some of the more common ones in the clinic are topiramate, phenazopyridine, anti-psychotic symptomatic medications, and sedative sleeping pills. Topiramate is a medication used to treat epilepsy and has an effect on the development of brain function in adolescents, causing cognitive decline such as memory, so it is not recommended for school-age epilepsy patients. Phenazopyridine is mainly used for the treatment of Parkinson’s disease and Parkinson’s syndrome, the adverse effects of this medication include memory impairment as well as urinary retention, making it unsuitable for the elderly. Anti-psychotic symptomatic drugs such as olanzapine and phenazopyridine also have side effects that impair memory as well as other cognitive functions. Benzodiazepine sedative sleeping pills can also lead to memory, calculation as well as concentration loss if taken in excess.