Pregnant Sprague-Dawley rats were administered deltamethrin, at doses of 0.1, 1, 5, or 10 mg/kg/day, or di-n-hexyl phthalate (DnHP) (250 mg/kg/day), by gavage, from gestation day (GD) 13 to 19. Maternal toxicity was observed at 10 mg/kg/day, as evidenced by transient…