Drug Allergies, Hypersensitivities, and Sensitivities Intolerances

In summary, and simply put, there seems to be no compelling reason to alter an established and widely understood definition that is fundamental 

Pharmacogenomics for understanding and managing Adverse Drug Reactions Including Drug Allergies 

1 Adverse Reactions to Drugs and Drug Allergy Scope of This Book 

however, that it now seems more likely that multiple rather than single genes are involved in ADRs, and this may add greatly to the difficulties of ultimately successfully applying these approaches to the everyday clinical situation. 

---