We evaluated the role of pharmacists in an interdisciplinary pain center using text mining analysis. We investigated 28 patients who visited an interdisciplinary pain center from May 2014 to July 2015. All patients were interviewed by a pharmacist. Further, we performed morphological analysis of medical records; classification of appearing words into “medicines/side effects,” “diagnosis/disease name,” “pain site,” “pain characteristics/concomitant symptoms,” “life/environment,” and “mental”; and correspondence analysis. The frequently appearing words “pain characteristics/concomitant symptoms” and “medicines/side effects” were used by 47.2% doctors and 35.3% pharmacists, respectively. In the correspondence analysis, doctors frequently referred to “pain characteristics/concomitant symptoms,” pharmacists frequently referred to “medicines/side effects,” and nurses frequently referred to “life/environment” and “pain site.” The fact that the three occupations used distinguishing phrases suggests that each is specialized in a distinct area. At an interdisciplinary pain center, we interviewed a nurse, a pharmacist, and a doctor, and shared information from various angles. The pharmacist focused on listening to the “medicines/side effects,” which is information related to his profession. Pharmacists contribute to medical care by recording information in medical records and sharing the information with other occupations. It is necessary to continue to provide information related to our specialized profession, respect each other, and provide high-quality medical care.