Background and Importance Pharmacist validation of hospitalised patients’ medication is a fundamental task that spends much of the hospital pharmacist’s time.

Aim and Objectives To establish a protocol for optimisation of pharmaceutical validation through the analysis of the validation timetable of prescribing physicians.

Material and Methods A validation statistics report was carried out for the prescribing medical staff for the last 6 months (March 2022 to September 2022). In this, the total validations were divided into the 24 hours of the day, calculating the percent corresponding to each of the hours. With the results obtained, an analysis was made of the hours with the most validations per day. With this, the pharmacist validation was adapted to those hours in such a way that most prescriptions were reviewed shortly after being validated by the doctor, and the rest of time were left for other assistance tasks of the pharmacist.

Results The hours with the highest medical validation were 10 a.m. (15.98%) and 11 a.m. (13.52%), while the night hours (0 a.m. to 7 a.m.) had the least validation (0.06–1.03%). Therefore, the pharmaceutical validation schedules were adapted to the following:

• 8 am: to review the treatments validated by the physician between 3 p.m. and 8 a.m. (hours in which the Pharmacy Service is closed), and which correspond to 27.48% of daily medical validations.

• 11 am: to review the treatments accumulated in the hours with the highest medical validation. They correspond to 36.71% of daily medical validations.

• 2 pm: to finish reviewing pending treatments before sending the medication to the patients (which is at 3 p.m). They correspond to 35.81% of daily medical validations.

Conclusion and Relevance Optimising the timetable of pharmaceutical validation allows the pharmacist to use the rest of the time in other care tasks, which has a positive impact on patients, while still being able to resolve any discrepancies found in the validation at the right time.

Conflict of Interest No conflict of interest