Complex sentence: Drug treatment options are limited, as many antihypertensives may negatively affect the fetus; methyldopa, hydralazine and labetalol are most commonly used for severe pregnancy hypertension.
Split into simpler sentences: Drug treatment options are limited, as many antihypertensives may negatively affect the fetus. Methyldopa, hydralazine, and labetalol are most commonly used for severe pregnancy hypertension.