What is the definition or description of: ceptaz (ceftazidime) allergy?

Ceptaz allergy: Ceptaz /ceftazidime (ceftazidime pentahydrate and L-arginine ) is an antibiotic which is given IV or IM. An allergy occurs when your body’s immune system creates antibodies to a foreign substance causing a reaction that can be mild to severe. For possible adverse effects see: http://www.rxlist.com/ceptaz-side-effects-drug-center.htm