The first category is the dihydropyridine class of calcium antagonists, such as nifedipine, amlodipine, felodipine, and lasidipine, and because these drugs have the word diphenhydramine inside their names, some people call them diphenhydramine drugs again.
The second class of drugs is the ACEI class of drugs, which is often referred to as the Priligy class of drugs, such as Enalapril and Benadryl.
The third class of drugs is ARB drugs also called sartans, mainly valsartan, irbesartan, olmesartan, etc.
The fourth class of drugs is beta-blockers, the most commonly used of which is betalactam, and the extended-release tablets of this class, also known as metoprolol succinate extended-release tablets, are generally used.
The fifth category is diuretics, and the diuretics most commonly used to lower blood pressure are hydrochlorothiazide, and one is indapamide. For first-degree hypertension, you can treat with any one of these five drugs. As the saying goes, no matter whether it's a white cat or a black cat, the one that can catch a mouse is a good cat. So as long as there are no contraindications, any one of these drugs can be used. For hypertension above the second level, one drug is definitely not enough, and you need to combine two or even three antihypertensive drugs to lower blood pressure.