Hello, I'm a healthcare professional with expertise in pharmacology. I can provide you with information on the side effects of sotalol, a medication used to treat certain types of abnormal heart rhythms. Sotalol is a beta-adrenergic blocking agent, also known as a beta-blocker, and it's classified as an antiarrhythmic drug. It works by slowing down the heart rate and affecting the electrical activity of the heart to help maintain a normal rhythm. However, like all medications, sotalol can cause side effects, which can range from mild to severe. Common side effects of sotalol may include: 1. Tiredness or fatigue 2. Dizziness 3. Headache 4. Diarrhea 5. Nausea 6. Changes in taste 7. Dizziness upon standing (orthostatic hypotension) 8. Trouble sleeping (insomnia) Serious side effects that require immediate medical attention include: 1. Life-threatening arrhythmias (abnormal heart rhythms that can be fatal) 2. Heart failure symptoms such as shortness of breath, swelling in the legs, or rapid weight gain 3. Severe allergic reactions, which can include symptoms like rash, itching, swelling, dizziness, and trouble breathing 4. Low blood sugar (hypoglycemia), especially in patients with diabetes 5. Bronchospasm or worsening of chronic lung disease (in patients with a history of asthma or chronic obstructive pulmonary disease (COPD)) It's important to note that not everyone will experience these side effects, and some people may not experience any at all. If you're taking sotalol and are concerned about side effects, it's crucial to discuss them with your healthcare provider. read more >>

Call your doctor at once if you have any of these serious 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.read more >>