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Compared with certain other L-type calcium channel blockers (for example those of the phenylalkylamine class such as verapamil) that have significant action at the heart, the dihydropyridine calcium channel blockers lower blood pressure mainly by relaxing the smooth muscle of the blood vessel walls. [3]
Skeletal formula of verapamil. Phenylalkylamine calcium channel blockers are relatively selective for myocardium, reduce myocardial oxygen demand and reverse coronary vasospasm, and are often used to treat angina.
Verapamil is a class-IV antiarrhythmic and more effective than digoxin in controlling ventricular rate. [19] Verapamil is not listed as a first line antihypertensive agent by the guidelines provided by JAMA in JNC-8. [20] However, it may be used to treat hypertension if patient has co-morbid atrial fibrillation or other types of arrhythmia. [17 ...
Switching directly is usually only a safe option for switching between certain SSRIs and SNRIs with short half-lives, as these medications are less likely to cause drug interactions or unwanted ...
The most common indications for digoxin are atrial fibrillation and atrial flutter with rapid ventricular response, [12] [13] especially in older or less active patients, [14] though beta blockers and/or calcium channel blockers may be preferred in some patients, such as younger more active ones, or those without heart failure or hemodynamic instability.
Related: See the Joyful Moment a 6-Year-Old on Transplant List Tells Hospital Staff: 'I'm Getting a New Heart!' While she recovered, a nurse practitioner asked Christine if she would chat with ...
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In general, contraindications to antipsychotic switching are cases in which the risk of switching outweighs the potential benefit. Contraindications to antipsychotic switching include effective treatment of an acute psychotic episode, patients stable on a LAI antipsychotic with a history of poor adherence, and stable patients with a history of self-injurious behavior, violent behavior, or ...