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Suspected anaphylactic reactions associated with anaesthesia<br />

.....................................................................................................................................<br />

• Cephalothin<br />

• Cefazolin<br />

• Cefradine (cephradine)*<br />

• Cefadroxil*<br />

Second generation cephalosporins<br />

• Cefaclor*<br />

• Cefamandole<br />

• Cefuroxime*<br />

Third generation cephalosporins<br />

• Cefixime*<br />

• Cefotaxime*<br />

• Cefpodoxime*<br />

• Ceftazidime*<br />

• Ceftriaxone*<br />

Fourth generation cephalosporins<br />

• Cefepime<br />

• Cefpirome<br />

*Listed in the British National Formulary.<br />

Local anaesthetics<br />

Anaphylactic reactions to local anaesthetic drugs are very uncommon. Local<br />

anaesthetic esters are more likely than amides to provoke a Type lV allergic<br />

reaction. Preservatives such as methyl-paraben or metabisulphites may be<br />

responsible in some cases. It has been suggested that inadvertent intravascular<br />

injection of a local anaesthetic or the systemic absorption of adrenaline<br />

may be responsible for many of the reported reactions. Reactions occurring<br />

in the dental chair may also be associated with idiopathic angioedema or<br />

latex allergy.<br />

Opioids<br />

Opioids are an uncommon cause of anaesthesia-related anaphylaxis.<br />

Diagnosis is difficult and the true incidence is unknown. Morphine,<br />

pethidine and codeine are well-known to cause non-specific histamine<br />

release which precludes diagnostic skin testing. The diagnosis of opioid<br />

Ó 2009 The Authors<br />

Journal compilation Ó 2009 The Association of Anaesthetists of Great Britain and Ireland 9

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