During pregnancy, the challenge is in deciding when to use antihypertensive medications, and what level of blood pressure to target. The antihypertensive drugs that may be used in pregnancy are methyldopa, beta blockers, calcium channel blockers and vasodilators. Methyldopa has been available for many years and is widely used. Literature supports the safety and efficacy of Nifedipine and Atenolol used in essential hypertension in pregnancy.