Drug Allergies

Drug allergies are an adverse reaction of the immune system to a medication or drug. When the immune system identifies a particular medication as harmful or foreign, it triggers an immune response, resulting in an allergic reaction. This reaction can range from mild symptoms such as a rash, itching, or hives, to more severe symptoms such as difficulty breathing, swelling of the face, tongue, or throat, and anaphylaxis, which is a severe and potentially life-threatening reaction.