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Antiarrhythmics
Common ADRs
| Question | Answer |
|---|---|
| Quinidine | GI upset, cinchonism, rashes |
| Procainamide | lupus like syndrome, confusion, disorientations, agranulocytosis |
| Disopyramide | anticholinergic, hypotension, HF, hepatotoxicity |
| Lidocaine | drowsiness or agitation, disorientation, coma, seizures, cardiac depression |
| Phenytoin | nystagmus, ataxia, drowsiness, coma, cardiotoxicity with rapid injection |
| Tocainide | GI upset, paresthesias, dizziness, light headedness, nightmares |
| Mexiletene | GI upset, fatigue, nervousness, dizziness, sleep disturbance, psychosis |
| morizcine | palpitations, dyspnea, nausea, dizziness |
| flecainide | bradycardia, heart block, ventricular fibrillation, HF, gastrointestinal upset |
| propafenone | dizziness, nausea and vomiting, constipation, blurred vision |
| propranolol | bronchospasm, heart block, hypotension, HF |
| esmolol | heart block, hypostension, HF, bronchospasms |
| acebutolol | heart block, hypostension, HF, bronchospasms |
| sotalol | heart block, hypostension, HF, bronchospasms |
| bretylium | hypotension, heart block, ventricular fibrillation, GI upset |
| amiodarone | bradycardia, heart block, ventricular fibrillation, GI upset, photosensitivity, corneal deposits, severe pulmonary toxicity, pneumonia, has iodine moeity so can cause thyrotoxicosis |
| ibutilide | ventricular extrasystole, headache |
| dofetilide | torsades |
| verapamil | heart block, hypotension, bradycardia, dizziness, headache, fatigue |