What is the definition or description of: ativan (lorazepam) allergy?

Allergy definition: A true allergic reaction to Ativan or any medication (or food) involves either the development of hives or rash and/or difficulty breathing, throat constricting. Such reactions need to be treated with Benadryl or, in severe cases, epinephrine. Often people say they have an allergy when it's really an adverse reaction or intolerance. For Ativan, that might be dizziness or sedation or agitation