antiarrhythmic drug
Noun: A pharmaceutical substance specifically formulated and prescribed to treat or prevent arrhythmias, which are conditions characterized by irregular, too fast, or too slow heartbeats. These drugs work by modifying the electrical conduction properties of heart tissue to restore and maintain a normal, regular cardiac rhythm.
This term is used exclusively in medical and pharmacological contexts. It refers to a class of medication, not a specific brand. * Doctors often prescribe an antiarrhythmic drug to manage atrial fibrillation. * The patient's condition stabilized after administration of the antiarrhythmic drug. * Selecting the appropriate antiarrhythmic drug depends on the specific type of arrhythmia diagnosed.
- Therapeutic Drug Monitoring: For some potent antiarrhythmic drugs, doctors may check blood levels to ensure the dosage is within a safe and effective range, a practice known as therapeutic drug monitoring.
- Proarrhythmic Effect: A critical concept in using these drugs is their potential proarrhythmic effect, meaning the medication itself can sometimes cause new or more dangerous heart rhythm disturbances.
- Antiarrhythmic (adjective/noun): Can be used as an adjective ("antiarrhythmic therapy") or, less formally, as a noun synonym for "antiarrhythmic drug."
- Antiarrhythmic Agent: A synonymous phrase often used in medical literature.
- Class I/II/III/IV Antiarrhythmic: Refers to the standard Vaughan Williams classification system that categorizes these drugs based on their primary mechanism of action on the heart's cells.
- Antiarrhythmic Agent
- Cardiac Rhythm Drug
- Antiarrhythmic Medication
- To be on antiarrhythmics: A common informal phrase meaning to be prescribed and taking this class of medication.
- Following his diagnosis, he has been on antiarrhythmics for five years.
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a drug used to treat an abnormal heart rhythm
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