International team of scientists discover link between genes and penicillin allergy using

(Estonian Research Council) Penicillin, a life-saving medicine, is the most common cause of drug allergy, with clinical manifestations ranging from temporary skin reactions to life-threatening systemic syndromes. Thus far, genetic factors have only been found for rare severe allergic reactions to penicillin. However, less is known about the genetics behind milder forms of penicillin hypersensitivity reactions that occur in a larger proportion of the population.