All antihypertensive drugs affect breastfeeding. The main antihypertensive drugs currently available are calcium antagonists, beta receptor antagonists, ACEIs, ARBs, and diuretics, and all antihypertensive drugs are able to be excreted through breast milk. When the mother takes an antihypertensive drug, the infant is actually taking the antihypertensive drug with the mother while she is taking breast milk. Often, it is recommended to avoid breastfeeding an infant or young child if the mother is taking oral antihypertensive medication. Artificial formula or other dairy products can be used, and if breastfeeding is necessary, the antihypertensive medication needs to be discontinued. In conclusion, try not to use antihypertensive medication while breastfeeding, and consider the option of labetalol when you must use it.