Hypertension in pregnancy taking labetalol can’t breastfeed mainly because the drug will affect the baby through breast milk. Gestational hypertension is a syndrome of elevated blood pressure during pregnancy, long-term elevated blood pressure will affect the safety of pregnant women and the fetus, you can choose labetalol treatment, this drug lowering effect is relatively fast, will not cause low blood pressure or reflex tachycardia, but after the birth of the drug will enter the breast milk, if the breastfeeding will affect the baby, so the use of labetalol can not be breastfeeding. In addition to not breastfeeding, Labetalol should also be used with caution if there is a history of allergy, congestive heart failure, diabetes, emphysema or non-allergic bronchitis, etc. In addition, this drug and tricyclic antidepressants may produce tremors, and great caution should be exercised when used in conjunction with verapamil-based calcium antagonists. It is recommended to use the drug under the guidance of a doctor, not blindly self-medication to avoid adverse effects.