Taking high blood pressure medication comes with different types of adverse effects on the body. However, you should not stop taking the medication on your own because of the side effects. If hypertensive patients are taking calcium antagonist type of antihypertensive drugs, such as levamlodipine maleate, nifedipine, etc., there is a possibility of facial flushing, ankle edema, gingival hyperplasia, accelerated heart rate, numbness of the base of the tongue, dry mouth, sweating, headache, nausea, loss of appetite, etc., adverse reactions. If you take angiotensin-converting enzyme inhibitor antihypertensive drugs, such as captopril and enalapril, you may have adverse reactions such as irritating dry cough, fainting, headache, dizziness, abnormal sensation, insomnia and fatigue, mildly increased heart rate, taste disturbance, nausea, vomiting, diarrhea, abdominal pain, constipation, dry mouth, and loss of appetite. If diuretic antihypertensive drugs such as hydrochlorothiazide and furosemide are taken, they may cause electrolyte disturbances, dry mouth, nausea, vomiting and extreme fatigue and weakness, muscle cramps, myalgia, and loss of tendon reflexes. If you take β1-adrenergic receptor blocking drugs, such as atenolol and metoprolol tartrate, you may have adverse reactions such as dizziness, headache, fatigue, insomnia, dreaminess, cold extremities, fatigue, gastrointestinal discomfort, and bradycardia. Although antihypertensive drugs have side effects, the overall incidence is not high and most of them are tolerable. In order to reasonably control blood pressure and reduce cardiovascular and cerebrovascular damage caused by hypertension, it is recommended that antihypertensive drugs be taken correctly and reasonably under the guidance of a doctor.