Multimorbidity is one of the major problems that arise as populations age. In addition to issues in taking their medication themselves, multimorbid senior patients are more vulnerable to prescription problems. Even in the best case scenarios, using good clinical practice and accepted guidelines for prescribing medication, the physician is obliged to use multiple guidelines for the treatment of various conditions within the same patient. Polypharmacy is to describe multiple, excessive, unnecessary, or unindicated drug consumption, each type of polypharmacy has specific consequences on both the patient and the health system. Underprescription was defined as lack of drug treatment for a present disease, for which drug therapy is indicated normally and for which no contra–indication, therapy failure or relevant adverse effects, for which the drug was stopped, was found.Present study is to observe association between polypharmacy and underpriscription