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Group of pharmaceuticals that are used to suppress abnormally fast rhythms (tachycardias), such as atrial fibrillation, supraventricular tachycardia and ventricular tachycardia. Type I ( sodium channel blockers)
Metoprolol, sold under the brand name Lopressor among others, is a medication used to treat angina, high blood pressure and a number of conditions involving an abnormally fast heart rate. [4] It is also used to prevent further heart problems after myocardial infarction and to prevent headaches in those with migraines . [ 4 ]
During long-term use, labetalol can reduce heart rate during exercise while maintaining cardiac output by an increase in stroke volume. [24] Labetalol possesses significant intrinsic sympathomimetic activity (ISA). [2] [22] In particular, it is a partial agonist at β 2-adrenergic receptors located in the vascular smooth muscle.
Cardiovascular agents are drugs that affect the rate and intensity of cardiac contraction, blood vessel diameters, blood volume, blood clotting and blood cholesterol levels. [1] They are indicated to treat diseases related to the heart or the vascular system (blood vessels), such as hypertension , hyperlipidemia , coagulation disorders , heart ...
Antiarrhythmic agents, also known as cardiac dysrhythmia medications, are a class of drugs that are used to suppress abnormally fast rhythms (tachycardias), such as atrial fibrillation, supraventricular tachycardia and ventricular tachycardia.
Tachycardia secondary to peripheral vasodilation and cardiac stimulation (Such tachycardia may be accompanied by palpitations.) [4] Tremor, excessive sweating, anxiety, insomnia, and agitation [5] More severe effects include paradoxical bronchospasm, hypokalemia, and in rare cases a myocardial infarction. [4]
Although α-methyldopa is generally regarded as a first-line agent, labetalol and metoprolol are also acceptable. Atenolol has been associated with intrauterine growth retardation, as well as decreased placental growth and weight when prescribed during pregnancy. ACEis and ARBs are contraindicated in women who are or who intend to become pregnant.
Finally, in drugs with both alpha and beta blocking properties, such as carvedilol and labetalol, interactions with other alpha or beta blockers can exaggerate a decrease in blood pressure. [2] Conversely, there are also drug interactions with carvedilol or labetalol in which blood pressure is increased unintentionally (such as with cough and ...