Administration of ropinirole to pregnant rats at maternally toxic doses resulted in decreased foetal body weight at 60 mg/ kg (approximately 15 times the AUC at the maximum dose in humans), increased foetal death at 90 mg/ kg (approximately 25 times the AUC at the maximum dose in humans) and digit malformations at 150 mg/ kg (approximately 40 times the AUC at the maximum dose in humans).