A retrospective evaluation of drug-drug interactions in patients admitted to Internal Medicine Departments in Palestinian Hospitals.

Objective: To measure the prevalence and identify risk factors associated with drug-drug interactions among patients admitted to internal medicine departments in Palestinian hospitals.

Methods: A retrospective cross-sectional observational study was conducted. Data were obtained from patient files from the internal medicine departments in Palestinian hospitals from 1 September 2017, to 31 March 2018.