Swelling of Face, Lips, Tongue or Throat
One of the common symptoms of an antiarrhythmics allergy is swelling in the face, lips, tongue or throat. This swelling can cause difficulty in breathing and in severe situations, it may block the airway completely.
Skin Rashes or Hives
Rashes or hives on the skin are a common allergic reaction to antiarrhythmics. This usually presents as itchy red spots or welts that can occur anywhere on the body.
Unexplained Fatigue
A sudden onset of unexplained fatigue may be a symptom of antiarrhythmics allergy. The body's response to the allergic reaction can cause tiredness and lack of energy.
Fast or Irregular Heartbeat
As antiarrhythmics directly influence the heart's electrical system, an allergic reaction can manifest as fast or irregular heartbeats. This is a serious symptom and needs immediate medical attention.
Abdominal Pain
Pain in the abdomen could also indicate an antiarrhythmics allergy. This is often associated with nausea, vomiting or diarrhea.
Dizziness
Dizziness and lightheadedness are noted symptoms of antiarrhythmics allergy. This can occur due to changes in blood pressure or heart rhythm caused by the allergic reaction.