Hey as Sotalol AF is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins

Side effects
Headache with chest pain and severe dizziness, fainting, fast or pounding heartbeats;
Feeling like you might pass out;
Slow heartbeats;
Trouble breathing;
Unusual sweating, increased thirst; or.
Swelling, rapid weight gain.

Uses
Sotalol AF is used to help keep the heart beating normally in people with certain heart rhythm disorders of the atrium (the upper chambers of the heart that allow blood to flow into the heart).
Sotalol AF is used in people with atrial fibrillation or atrial flutter.

Adverse Effects
Foreign marketing experience with sotalol hydrochloride shows an adverse experience profile similar to that described above from clinical trials
Voluntary reports since introduction include rare reports (less than one report per 10,000 patients) of: emotional lability, slightly clouded sensorium, incoordination, vertigo, paralysis, thrombocytopenia, eosinophilia, leukopenia, photosensitivity reaction, fever, pulmonary edema, hyperlipidemia, myalgia, pruritis, alopecia.