RT Journal Article SR Electronic T1 Choice of pharmaceutical form as a key factor during ketogenic diet: a case report JF European Journal of Hospital Pharmacy JO Eur J Hosp Pharm FD British Medical Journal Publishing Group SP ejhpharm-2021-002727 DO 10.1136/ejhpharm-2021-002727 A1 Héctor Rodríguez-Ramallo A1 Nerea Báez-Gutiérrez A1 Justo Valverde Fernandez A1 Francisco José Araujo-Rodríguez YR 2021 UL http://ejhp.bmj.com/content/early/2021/06/07/ejhpharm-2021-002727.abstract AB West syndrome is a severe epilepsy syndrome characterised by the appearance of drug-resistant epileptic disorders associated with hypsarrhythmia and intellectual disability. Among non-pharmacological treatments, the ketogenic diet, which consists of low carbohydrate intake and a rich lipid intake, stands out. This treatment induces a state of ketosis, which has been related to a decrease in the number of seizures. It is essential to control the carbohydrate intake within drug treatment for these patients since many pharmaceutical forms, specifically liquid oral medication, may contain carbohydrates in the form of mono/polysaccharides or polyols. We describe the case report of an infant with drug-resistant West syndrome, treated with a ketogenic diet, whose antiseizure liquid medication impeded a proper response to the diet. After the substitution of these medications, the patient showed a remarkable decrease in the number of seizures.All data relevant to the study are included in the article.