Hi, No, this does not happen with the use of Betnesol. Betnesol is a steroid injection administered during pregnancy when preterm birth is a possibility. The steroid injection helps to produce surfactant in the baby s lungs, allowing them to inflate without sticking together. Normally, babies do not make this surfactant on their own until around 32-35 weeks. So if you have a risk of delivering before 34 weeks , betnesol is used to accelerate the lung maturation process of the baby. The dose used does not produce any developmental side effects in the baby. Instead betnesol prevents chances of intraventricular hemorrhage (brain hemorrhage). I hope this answers your question. You can write to us again incase of any query. Wish you good health. Thankyou.