Recommendations for prevention include aspirin in those at high risk, calcium supplementation in areas with low intake, and treatment of prior hypertension with medications. Exercise during pregnancy may also be useful. The use of intravenous or intramuscular magnesium sulfate improves outcomes in those with eclampsia and is generally safe. This is true in both the developed and developing world. Breathing may need to be supported. Other treatments may include blood pressure medications such as hydralazine and emergency delivery of the baby either vaginally or by cesarean section.