The consequences of drinking alcohol after taking blood pressure-lowering drugs can cause low blood pressure and fainting in mild cases, and shock, death, and cardiac arrest in severe cases, so don’t drink alcohol after taking blood pressure-lowering drugs because drinking alcohol after taking blood pressure-lowering drugs can lead to vasodilatation, which causes a significant drop in blood pressure. In addition, antihypertensive drugs, such as calcium antagonists, β-blockers, angiotensin-converting enzyme inhibitors or angiotensin receptor antagonists, these antihypertensive drugs will interact with alcohol to cause antihypertensive drug failure, can not play a role in lowering blood pressure, and at the same time after drinking alcohol will make the whole body capillary permeability increase, sweating, arterial dilatation, which will cause a transitory lowering of blood pressure resulting in insufficient blood volume. In severe cases, shock may occur.