Objective: To evaluate the pharmacotherapy follow-up (PTF) of elderly hospitalized hip fracture (HF) patients for the detection and resolution of negative medication-associated outcomes (NOM), recording their association with hospital stay. Method: Quasi-experimental prospective 4-month study of patients aged > 64 yrs. All patients underwent PTF. Study variables included age, sex, hospital stay, surgery delay, pharmaceutical interventions (PI), NOM, PI acceptance and resolution. Results: The study included 87 patients (77% females). Length of hospital stay was 13.8 days; 75% waited for Surgery < 5 days. PI were issued for 88.5% of patients; out of 215 PI (2.8/patient), 60.5% were received by physicians. NOM were prevented by 43.7% of accepted PI and resolved 56.3%. NOM were for "necessity" in 51.2%. In-hospital mortality was 12%. Conclusion: This PTF programme detected elevated NOM and NOM risk in HF patients, associated with longer hospital stay. The pharmacist conciliated medications to prevent or resolve all detected NOM.