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Background and Importance The goal of pharmaceutical care is to provide patients with the support they need to ensure they can follow their treatment plan in a correct and safe manner.Aim and Objectives To analyse structured data collected from outpatients pharmaceutical care consultations.Material and Methods Observational, descriptive, retrospective study conducted in a secondary care hospital. All records of outpatient pharmaceutical care consultations between 2021 and 2024 were included. The following variables were collected from the electronic medical record: reason for consultation, service, type of drug and training for self-administration.Results A total of 4345 records were obtained: 22% belonged to internal medicine, 15% to oncology, 14% to dermatology and 13% to rheumatology departments.The reason for consultation was initiation of a new drug treatment in 2801 cases (64%): 38% biological drugs (BIO), 22% oral antineoplastic drugs (ANEO), and 11% antiretroviral therapy (ART). The breakdown by specialty was: dermatology (19%), oncology (18%), internal medicine (13%), and rheumatology (11%). Follow-up consultations accounted for 9% of the total. There were 238 consultations for drug interactions: 48% in patients with ANEO and 20% with ART. Adherence to treatment resulted in 227 consultations: 69% in patients with ART followed by 13% in patients with BIO. In 74 cases, consultations were due to treatment tolerance issues: 23% of patients were taking antifibrotics, 14% ART, and 14% ANEO. The remaining reasons accounted for 15%.Consultations relating to BIO occurred in 1515 cases. In 1066 cases, patients received training on how to use the delivery device. Only 3% consulted again due to problems with device management. Of the 879 consultations from patients with ART, 23% were related to PrEP and 18% to adherence problems. Of the 810 consultations related to ANEO, 14% were due to drug interactions. The remaining 26% corresponded to other drugs.Conclusion and Relevance This study shows that, within our population, the greatest demand for pharmaceutical care comes from patients undergoing BIO, followed by ART and ANEO. The most common reasons for consultation were initiating a new drug treatment, followed by follow-up consultations, drug interactions and adherence counselling. Self-administration training was provided in 25% of consultations.Conflict of Interest No conflict of interest