Cisatracurium and atracurium as antigens

Seventy-five consecutive patients referred to an anaesthetic allergy clinic were intradermally tested with atracurium and cisatracurium. With the exce ption of one patient the results were identical, suggesting that allergy to either drug is associated with allergy to the stereoisomer For skin testin g for allergy to neuromuscular blocking drugs it is only necessary to use e ither atracurium or cisatracurium and cisatracurium is the preferred drug.