Background and Importance Many patients bring medication with them during their admission to hospital, which is a source of error

Aim and Objectives To adapt the Pharmacotherapeutic Guide (PTG) to home treatment and patient conformity to therapeutic exchange during admission.

Material and Methods Cross-sectional descriptive study of patients admitted to a second level hospital on 11-11-2021 with treatments prescribed as Medication Provided by the patient (MPP). The sources of information used were: the electronic medical record and the prescription programme. The variables collected were: age, sex, therapeutic group of the PPM according to the ATC classification, inclusion status in the PTG and/or in the therapeutic exchange protocol, and patient agreement with the exchange for another available.

Results A total of 96 patients had a prescription for MPP, representing 28.92% of the patients admitted. 42 were analysed after excluding those who could not be interviewed due to their clinical situation, with a median age of 74.5 years (IQR70-80.75), 59.52% being male. Of the MPPs, the most frequent therapeutic group was C (38.82%) followed by N (20%) and R (15.29%) among others. Analysing group C, the most frequent subgroup was: agents acting on the Renin-Angiotensin System(RAS) (33.33%), lipid-modifying agents (21.21%). 47.06% of the MAPs were included in the PT. Among those not included in the guidelines, 84.78% were included in the therapeutic exchange protocol while 15.22% were not, which were recommended to be maintained during admission. 80.56% of the patients showed compliance with the change for another medication available in the hospital

Conclusion and Relevance A striking percentage of patients admitted to the hospital bring medication, the most frequent therapeutic group and subgroup were those related to the cardiovascular system and the RAS, respectively. A high percentage of the MPP were found in the PTG, and could have been dispensed by the Pharmacy Service. Those medicines not available in the hospital were included in the therapeutic exchange protocol; For non-interchangeable drugs, was recommended to maintain during admission. Most patients would have no objection to their medication being exchanged during admission. We consider that the best approach would be to avoid the supply of medication by patients, with all medication being dispensed by the Pharmacy Service.

Conflict of Interest No conflict of interest