A single course of corticosteroids, two intra- muscular injections of 12 mg betamethasone 24 hours apart or 4 doses of 6 mg dexamethasone 12 hours apart,
has been shown to confer no harm to the fetus in long term follow up studies and every effort should be given to administer steroids to all women at risk of preterm labour between 24e34 þ 6 weeks gestation.