Introduction. Antipsychotics are widely used off-label for treating resistant forms of anxiety-depressive disorders, necessitating a thorough safety data collection for this class of medicinal products.
Objective. To assess the safety profile of antipsychotics recommended by the Russian Federation for treating patients with neurotic disorders.
Materials and methods. Spontaneous reports submitted to the "Pharmacovigilance" database of the Roszdravnadzor Automated Information System between 2019 and 2024 were analyzed for chlorprothixene, sulpiride, amisulpride, quetiapine, olanzapine, risperidone, and aripiprazole. For each international nonproprietary name, Reporting Odds Ratios (ROR) and Proportional Reporting Ratios (PRR) were calculated to assess statistically significant disproportionality.
Results. We obtained data from 1392 spontaneous reports, of which 1359 were primary reports. The number of spontaneous reports increased for most drugs, except for sulpiride, amisulpride, flupentixol, and ziprasidone. The total number of reports over the 5‑year observation period did not exceed 50 for flupentixol (n=21), lurasidone (n=35), ziprasidone (n=18), cariprazine (n=29), and amisulpride (n=14). The highest number of statistically significant associations between drug use and the development of adverse reactions across several system-organ classes was demonstrated for risperidone: disorders of the musculoskeletal and connective tissue (dystonia, tremor, hypertonia), disorders of the reproductive system and mammary glands (galactorrhea, amenorrhea), and laboratory/instrumental findings (hyperprolactinemia). Associations were confirmed with injuries, poisonings, procedural complications (poisoning, intentional poisoning, and neurotoxicity), and nervous system disorders (depressed level of consciousness, headache, and dizziness) for chlorprothixene. Associations between quetiapine and nervous system disorders (tremor, stupor, somnolence), injuries, poisonings, and procedural complications (neurotoxicity, poisoning, and overdose) Associations were found between aripiprazole, flupentixol, and lurasidone with musculoskeletal and connective tissue disorders (dystonia). Cariprazine was associated with psychiatric disorders (agitation, anxiety, and 1 case of completed suicide).
Conclusions. The overall reporting level remains extremely low. Considering the international experience in collecting safety data on antipsychotics, a significant number of cases may be underreported, including suicides and self-harm, overdoses, rhabdomyolysis, neuroleptic malignant syndrome, closed-angle glaucoma associated with olanzapine use, and acute pancreatitis associated with quetiapine use.