Dihydralazine is a pharmaceutical drug primarily used as an antihypertensive agent to lower high blood pressure. It works by relaxing the smooth muscles in the walls of blood vessels, leading to vasodilation and reduced peripheral resistance. This action helps decrease the workload on the heart and improves blood flow. Dihydralazine is often prescribed for patients with severe or resistant hypertension. It is typically administered orally, but in emergencies, intravenous forms may be used. The drug is sometimes combined with other antihypertensive medications to enhance effectiveness. Common side effects include headaches, dizziness, rapid heartbeat, and fluid retention. Its mechanism involves direct action on vascular smooth muscle rather than influencing the central nervous system. Dihydralazine requires careful monitoring to avoid excessive drops in blood pressure. Overall, it is an important tool in managing hypertension and preventing related cardiovascular complications.
