This is a randomized controlled study that will be conducted in Parkinson's disease and movement disorders clinic, Siriraj Hospital, Thailand. The participants and assessors evaluating MDS-UPDRS were blinded in this study.~The participants will be divided into two groups by block randomization: intervention group and usual care group.~For the intervention group, the clinical pharmacists will conduct medication reviews, patient education, and counseling. Moreover, the clinical pharmacists will identify drug-related problems (DRPs) and provide the information through written pharmacist notes to physicians at the clinic. For patients randomized to the control group will attend the medical follow-up as usual and receive usual care. Telepharmacy will be conducted 2-7 days before the doctor visit and within 1 week after the doctor visit. Data collection will be conducted at baseline, week 12, and week 24 in both groups. After the follow-up, the pharmacist will count the number of drug-related problems identified after the doctor visit. The primary outcome of the study is comparing the number of drug-related problems per person changed from the start of the study to the end of week 24 between two groups.
The aim of this study is to evaluate the impact of pharmaceutical care on the number of drug-related problems, clinical outcomes and quality of life of patients with Parkinson's disease.