INS and Insulin resistance: We conclude that the effects of standard dose flutamide on plasma insulin and glucose occur in a differential and age‐dependent manner during the first 3 weeks of neonatal life, which renders standard doses of flutamide a less than the optimal agent for studying the effects of androgen on neonatal pancreatic endocrine function and common neonatal pathologies such as maternal hyperandrogenism, glucose intolerance, and insulin resistance.