Low blood pressure refers to diastolic blood pressure, diastolic blood pressure 90 to 100mmHg can take dihydropyridine calcium channel blockers, beta blockers, angiotensin converting enzyme inhibitors and other drugs. 1. Dihydropyridine calcium channel blockers: diastolic blood pressure of 90 to 100mmHg can be considered hypertension, at this time belongs to the category of grade 1 hypertension and grade 2 hypertension, you can first take lasidipine, amlodipine benzenesulfonate and other dihydropyridine calcium channel blockers to control the blood pressure steady. Edema, gingival hyperplasia and other side effects may occur after using the drug, tachycardia and heart failure patients should be used with caution. 2. β-blockers: When patients with diastolic blood pressure of 90 to 100 mmHg are combined with symptoms of rapid heartbeat, β-blockers such as metoprolol succinate and bisoprolol fumarate are needed. After the use of bradycardia, nightmares, insomnia and other adverse reactions, suffering from bronchial asthma, cardiogenic shock, etc. is prohibited. 3. Angiotensin-converting enzyme inhibitors: patients with diastolic blood pressure of 90 to 100mmHg can use angiotensin-converting enzyme inhibitors such as Benadryl and Fosinopril. Adverse effects such as deterioration of renal function and potassium retention may occur after use, and they are contraindicated in pregnant and lactating women and those with bilateral renal artery stenosis. Diastolic blood pressure 90 to 100mmHg medication should be directed by a doctor, patients are advised to go to the hospital in time.