Terazosin is usually best taken at bedtime. Follow your doctor’s instructions for specific medications. Terazosin can reduce bladder outlet obstruction without affecting bladder contraction, and can also reduce total peripheral vascular resistance and thus lower blood pressure. Therefore, this drug is suitable for the treatment of benign prostatic hyperplasia, as well as for the treatment of hypertension, either alone or in combination with other anti-hypertensive drugs. The drug is generally recommended to be taken at bedtime. It should be contraindicated in people who are allergic to Terazosin. Adverse reactions such as dizziness, nasal congestion, nausea, weakness, blurred vision, peripheral edema, palpitations and drowsiness may occur after the administration of the drug. Specific medication should be under the guidance of a specialist, not unauthorized use of medication, such as the occurrence of adverse reactions, timely consultation.