ObjectiveTo discuss the practical methods of clinical drug therapy with clinical pharmacists' participation. MethodThe patient was male and at the age of 88. Because of "exertional heart tiredness for 4 years, coughing sputum for 10 days, and sudden inarticulate condition", he was admitted into the hospital on November 22nd, 2013. The diagnosis was cerebral infarction with pulmonary infection. Clinical pharmacists participated in the consultation on February 19th, 2014 because the uncontrollable repeated pulmonary infection. By analyzing the therapeutic scheme, clinical pharmacists made and adjusted the treatment scheme for one patient with refractory infections. ResultsAfter the treatment scheme was adjusted, several laboratory test results of the patient returned to normal, including respiratory rate, body temperature, white blood cell count and neutrophils. Sputum volume decreased obviously and sputum culture was negative. Lung signs and image were significantly improved. ConclusionsClinical pharmacists should pay more attention to the analysis of the clinical therapeutic scheme to improve therapeutic efficacy for patients with refractory infections.