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Antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). [1] Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke , heart failure, kidney failure and myocardial infarction .
The antihypertensive activity of hydralazine was discovered by scientists at Ciba, who were trying to discover drugs to treat malaria; it was initially called C-5968 and 1-hydrazinophthalazine; Ciba's patent application was filed in 1945 and issued in 1949, [19] [20] [21] and the first scientific publications of its blood pressure-lowering ...
Rilmenidine, an oxazoline compound with antihypertensive properties, acts on both medullary and peripheral vasomotor structures.. Rilmenidine is a imidazoline analog and shows greater selectivity for imidazoline receptors than for cerebral alpha2-adrenergic receptors, distinguishing it from reference alpha2-agonists, and conferring additional anti-inflammatory actions not shared with most ...
Labetalol, hydralazine and nifedipine are commonly used antihypertensive agents for hypertension in pregnancy. [6] ACE inhibitors and angiotensin receptor blockers are contraindicated as they affect fetal development. [53] The goal of treatment of severe hypertension in pregnancy is to prevent cardiovascular, kidney, and cerebrovascular ...
Signs and symptoms of ACEi and ARB use during pregnancy include kidney damage or failure, oligohydramnios, anuria, joint contractures, and hypoplasia of the skull. [58] Common, alternative agents for high blood pressure in pregnant women include anti-adrenergic and beta-blocking medications, such as methyldopa or metoprolol, respectively. [58]
Drug treatment options are limited, as many antihypertensives may negatively affect the fetus. ACE inhibitors, angiotensin receptor blockers, and direct renin inhibitors are contraindicated in pregnancy as they are teratogenic. Methyldopa, hydralazine, nifedipine, and labetalol are most commonly used for severe pregnancy hypertension. [7]
They are one of the three major causes of death in pregnancy (16%) along with post partum bleeding (13%) and puerperal infections (2%). [6] Hypertensive disorders during pregnancy, such as gestational hypertension, preeclampsia, and eclampsia, are a major contributor to maternal and fetal illness and death on a worldwide scale.
The general effects of atenolol, including beta-blocking and antihypertensive effects, last for at least 24 hours following oral doses of 50 or 100 mg. [4] With intravenous administration, maximal reduction in exercise-related tachycardia occurs within 5 minutes and following a single 10 mg dose has dissipated within 12 hours. [4]