A preprint, non-peer-reviewed study states that weight-loss drugs such as Wegovy are more likely to cause temporary hair loss compared to Contrave. The latter is not overly efficacious hence less weight loss therefore less hair loss.

Medical Mythbusting Commentary for March 18, 2025

Source:
Weight-Loss Drugs Like Wegovy Are Linked to Hair Loss

Reference:
Risk of Hair Loss with Semaglutide for Weight Loss