Adverse drug reactions (ADRs) are divided into predictable (related to the pharmacological effects of the drug in normal people) and unforeseen (related to the immune response of the drug). individual and sometimes due to genetic differences in susceptible patients). Drug allergy is an unpredictable and immune-mediated type of reaction.

Signs of drug allergy are very rich and diverse in the organs and tissues of the body. Signs of allergy occur in mild, severe and severe forms. There are many symptoms of drug allergy that do not have obvious manifestations that the patient cannot know, such as vestibular disorders, kidney failure, loss of blood cells after taking the drug...