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Metoprolol is a beta blocker, or an antagonist of the β-adrenergic receptors. It is specifically a selective antagonist of the β 1-adrenergic receptor and has no intrinsic sympathomimetic activity. [37] Metoprolol exerts its effects by blocking the action of certain neurotransmitters, specifically adrenaline and noradrenaline.
"Patients may need, over time, to have their doses reduced, given their increase in overall sensitivity," he said. ... acebutolol, atenolol, betaxolol, bisoprolol, esmolol, metoprolol and ...
Fruit consumed three days before the medicine can still have an effect. [5] The relative risks of different types of citrus fruit have not been systematically studied. [1] Affected drugs typically have an auxiliary label saying "Do not take with grapefruit" on the container, and the interaction is elaborated upon in the package insert. [6]
[citation needed] Antianginal effects result from negative chronotropic and inotropic effects, which decrease cardiac workload and oxygen demand. Negative chronotropic properties of beta blockers allow the lifesaving property of heart rate control. Beta blockers are readily titrated to optimal rate control in many pathologic states. [citation ...
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.
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Drugs like amiodarone, diltiazem, verapamil and metoprolol are frequently given before electrical cardioversion to decrease the heart rate, stabilize the patient and increase the chance that cardioversion is successful. There are various classes of agents that are most effective for pharmacological cardioversion.
Nick Dunlap, a 20-year-old sophomore who plays golf for the University of Alabama, won the American Express tournament Sunday at the PGA West golf course in La Quinta, California.