A review on side effect management of second-generation antipsychotics to treat schizophrenia: a drug safety perspective

Expert Opin Drug Saf. 2024 Jun;23(6):715-729. doi: 10.1080/14740338.2024.2348561. Epub 2024 May 6.

Abstract

Introduction: Effective side effects management present a challenge in antipsychotic treatment with second-generation antipsychotics (SGAs). In recent years, most of the commonly used SGAs, except for clozapine, have been shown to differ only slightly in their effectiveness, but considerably regarding perceived side effects, safety profiles, and compatibility to preexisting medical conditions.

Areas covered: The current state of available evidence on side-effect management in SGA treatment of patients with schizophrenia spectrum disorders (SSD) is reviewed. In addition, current guideline recommendations are summarized, highlighting evidence gaps.

Expert opinion: SGA safety and side effects needs to be considered in treatment planning. Shared decision-making assistants (SDMA) can support patients, practitioners and relatives to orient their decisions toward avoiding side effects relevant to patients' adherence. Alongside general measures like psychosocial and psychotherapeutic care, switching to better tolerated SGAs can be considered a relatively safe strategy. By contrast, novel meta-analytical evidence emphasizes that dose reduction of SGAs can statistically increase the risk of relapse and other unfavorable outcomes. Further, depending on the type and severity of SGA-related side effects, specific treatments can be used to alleviate induced side effects (e.g. add-on metformin to reduce weight-gain). Finally, discontinuation should be reserved for acute emergencies.

Keywords: Safety aspects; schizophrenia; second-generation antipsychotics (SGA); shared decision making assistants (SDMA); side effect management.

Publication types

  • Review

MeSH terms

  • Antipsychotic Agents* / administration & dosage
  • Antipsychotic Agents* / adverse effects
  • Decision Making, Shared
  • Dose-Response Relationship, Drug
  • Humans
  • Medication Adherence
  • Practice Guidelines as Topic*
  • Schizophrenia* / drug therapy

Substances

  • Antipsychotic Agents