What is the definition or description of: dilacor allergy?

Dilacor allergy: Dilacor ((diltiazem hydrochloride) is a calcium channel blocker used for treatment of high blood pressure, angina cardiac rhythm disorders. 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 potential adverse effects see: http://www.rxlist.com/dilacor-xr-side-effects-drug-center.htm