Anticholinergic drugs are included in the efficacy group of various antidepressants, antihistamines, antispasmodics like skeletal muscle relaxants. Elderly patients are often taking anticholinergic drugs due to various diseases such as sleep disorders and dysuria. But the use of anticholinergic drugs is restricted in guidelines such as Beers Criteria or STOPP due to the anticholinergic adverse effects including dry mouth, constipation, difficult urination, delirium, hallucinations and especially cognitive impairment. In this study, we investigated the usage of anticholinergic drugs in out-of-hospital prescription of 4,442 elderly patients. Results of the study were obtained that 32% (n=1,421) of overall patients were prescribed with 1~6 products (average 1.37) of anticholinergic drugs. 70.9% of the 1,421 patients (n=1,007) were prescribed with one drug, 22.7% (n=323) were two drugs and 4.9% (n=70) were three drugs. 27.1% of the 1,421 patients (n=430) were 70~74 years old patients who were the most commonly prescribed with anticholinergic drugs. Amitriptyline, chlorpheniramine, dimenhydrinate and quetiapine were most frequent component of ACB Score 3 drugs and amantadine, baclofen, carbamazepine, cyproheptadine and oxcarbazepine were most frequent of ACB Score 2 drugs. Anticholinergic Drug Scale (ADS) of individual patients presented one point (48.5%, n=689), 2 points (15.4%, n=219), more than 3 points (36.1%, n=513), and up to maximum 12 point (n=1). More than 2 points were more than half (51.5%, n=732). Therefore, additional prospective study in the use and adverse effects of anticholinergic drugs for elderly patients will be required. And national management such as DUR program will be required for elderly drug administration from now on.