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. 2021 Jan 27;116(1):129–139. [Article in Portuguese] doi: 10.36660/abc.20200485

Table 2. – Antiarrhythmic drugs used for the maintenance of sinus rhythm.

Drugs used for the maintenance of sinus rhythm
  Dose Adverse effects
Propafenone 150 to 300 mg, three times a day Vertigo, heart palpitations, cardiac conduction disorders, bradycardia, tachycardia, anxiety, sleep disorders, headache
Sotalol 80 to 160 mg, twice a day Bradycardia, dyspnea, chest pain, heart palpitations, syncope, dizziness, diarrhea, nausea, vomiting, fatigue, rash, torsade de pointes
Amiodarone 100 to 200 mg/day Neutropenia, agranulocytosis, bradycardia, tachycardia, torsade de pointes, hypo and hyperthyroidism, optic neuropathy, neuritis, pancreatitis, elevated transaminase levels, acute liver injury, confusional state, interstitial pneumonitis, bronchospasm, eczema, urticaria, hypotension