Introduction: There has been a considerable increase in the concurrent use of prescribed medicines and herbal products, but most users do not have any information about drug-herb interactions.
Objective: Therefore, this study aimed to investigate the effects of pharmacological advice by community pharmacists on promoting the rational use of prescribed medicines together with herbal products.
Methods: The study was one group pretest-posttest experimental design, performed on a sample of 32 people who met the following criteria: aged ≥18 years, lived in an urbanized area, have NCDs such as diabetes, hypertension, dyslipidemia, or cardiovascular disease, and have used prescribed medicines and herbal products concurrently.