Este trabalho teve como objetivo analisar o uso de medicamentos administrados por sonda aos pacientes das unidades de terapia intensiva adulto e neonatal de um hospital de ensino. Trata-se de um estudo de caráter descritivo, exploratório e quantitativo, realizado em março/2011 a partir de prescrições oriundas das respectivas unidades, com foco nas recomendações de uso desses medicamentos via sonda. As informações foram coletadas e analisadas no programa Epi Info versão 3.5.2. Analisou-se 572 prescrições, somando 5.283 medicamentos. Dentre os medicamentos com forma farmacêutica de uso oral, a maioria (88,8%) foi prescrita para administração por sonda. Desta, 11 tiveram restrição de uso. A alta frequência de medicamentos prescritos para administração por sonda, aliada aos diferentes tipos de restrições que inviabilizam seu uso por essa via, evidencia a necessidade da implantação de programas de educação continuada, bem como a criação de manuais educativos que busquem aprimorar o conhecimento dos profissionais envolvidos

Background: Although a highly common practice in hospital care, tablet splitting can cause dose variation and reduce drug stability, both of which impair drug therapy. Objective: To determine the overall prevalence of tablet splitting in hospital care as evidence supporting the rational prescription of split tablets in hospitals. Methods: Data collected from inpatients’ prescriptions were analyzed using descriptive statistics and used to calculate the overall prevalence of tablet splitting and the percentage of split tablets that had at least one lower-strength tablet available on the market. The associations between the overall prevalence and gender, age, and hospital unit of patients were also assessed. The results of laboratory tests, performed with a commercial splitter, allowed the calculation of the mass loss, mass variation, and friability of the split tablets. Results: The overall prevalence of tablet splitting was 4.5%, and 78.5% of tablets prescribed to be split had at least one lower-strength tablet on the market. The prevalence of tablet splitting was significantly associated with the patient’s age and hospital unit. Laboratory tests revealed mean values of mass loss and variation of 8.7% (SD 1.8) and 11.7% (SD 2.3), respectively, both of which were significantly affected by the presence of coating and scoreline. Data from laboratory tests indicated that the quality of 12 of the 14 tablets deviated in at least one parameter examined. Conclusions: The high percentage of unnecessary tablet splitting suggests that more regular, rational updates of the hospital’s list of standard medicines are needed. Also, inappropriate splitting behavior suggests the need to develop tablets with functional scores.