A pretest-posttest no control group design was used to test knowledge on fall incidence in residents of a rehabilitation center. Twenty-six staff nurses were educated on fundamental geriatric pharmacology. Results of a two-tailed t test showed a significant increase in posttest scores (t test(50) = 3.53, p = .003). Retrospective fall and medication data collected over 2 months in 2011 and 2 months in 2012 were compared. The incidence of falls decreased (44.7%) with total number of residents falling (30.7%) post intervention in 2012. Staff nurses need to have continuing pharmaceutical education and medication management classes about the elderly.