USMLE (Fach) / Pharmacology - Cardiovascular (Lektion)
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Antiarrhythmics - Class Ib
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Lidocaine, Mexiletine (I'd buy Liddy's Mexican Tacos)
- ↓ AP duration- Preferentially affect ischemic or depolarized Purkinje and ventricular tissue. - Phenytoin can also fall into the Ib category.
Clincial use:- Acute ventricular arrhythmias (especially post-MI)- Digitalis-induced arrhythmias
Adverse effects: CNS stimulation/depression, cardiovascular depression
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