# Effect of antipsychotic consumption during pregnancy on risk of gestational diabetes development: a systematic review and meta-analysis

## TL;DR

This study finds that using second-generation antipsychotics during pregnancy increases the risk of gestational diabetes, while first-generation antipsychotics do not.

## Contribution

The study provides new evidence that second-generation antipsychotics are associated with a higher risk of gestational diabetes compared to first-generation antipsychotics.

## Key findings

- Second-generation antipsychotics are significantly linked to increased gestational diabetes risk (RR = 1.59).
- First-generation antipsychotics show no significant association with gestational diabetes (RR = 1.31).
- Continuous or multi-trimester exposure increases gestational diabetes risk, especially when spanning the first to third trimester.

## Abstract

The use of antipsychotic medications, including first-generation antipsychotics (FGAs) and second-generation antipsychotics (SGAs), during pregnancy has risen substantially. However, concerns remain regarding their potential metabolic effects, especially the risk of gestational diabetes mellitus (GDM).

We conducted a systematic review and meta-analysis of observational studies published up to 2025 that examined the association between maternal exposure to antipsychotics or antidepressants and the risk of GDM. Data were extracted independently by two reviewers, quality was assessed using the Newcastle–Ottawa Scale, and pooled relative risks (RRs) were calculated using a random-effects model.

We selected seventeen eligible studies, including large registry-based cohorts and prospective investigations across multiple countries. Pooled analysis demonstrated that maternal exposure to SGAs was significantly associated with an increased risk of GDM (RR = 1.59; 95% CI: 1.24–1.94), whereas FGAs showed no significant association (RR = 1.31; 95% CI: 0.29–2.32). The risk appeared greatest among women with continuous or multi-trimester exposure, particularly when exposure extended from first trimester into the third trimester. Funnel plot and Egger test showed no publication bias.

The higher risk of GDM seen with antipsychotic use was mainly linked to SGAs, while FGAs did not show the same effect. These findings emphasize the need to tailor treatment plans, closely monitor blood sugar levels, and involve a team of healthcare professionals when caring for pregnant women who require psychotropic medications.