Anaphylaxis

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It is an acute and often life-threatening immunologic reaction, frequently heralded by scalp pruritus,  diffuse  erythema,  urticaria,  or  angioedema.  Bronchospasm,  laryngeal  edema,  hyperperistalsis,  hypotension, and cardiac arrhythmia may occur. Antibiotics (especially penicillins), other drugs, and  radiographic contrast agents are the most common causes of serious anaphylactic reactions.  

Prevention and Non-Pharmacological Treatment 

• If  acute  (existing  for  less  than  3  months),  exclude  drug  reactions  (e.g.  penicillin),  or infection
• Avoid precipitants