The study population includes patients with neurological disorders treated sodium valproate referred to Amir-Al-Momenin Hosptial of Zabol city.
Inclusion criteria: willingness to participate, lack of alcohol intake, systemic diseases, chronic and acute liver disorders (hepatitis B, C, etc.), cirrhosis, celiac disease, diabetes, high blood pressure, cardiovascular disease, lung disease, kidney disease, not being pregnancy or in lactation, not taking metformin and hepatotoxic drugs, no antibiotic use during one week before entering into the study, no history of surgery in the recent year, Lack of weight loss in the last 3 months.
Exclusion criteria: Taking antibiotics more than one week during the study period, willingness to withdraw from the study, not taking more than 10% of the prescribed capsules in each follow up.