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For example, a person who developed an allergy to a red dye will be allergic to any new drug which contains that red dye. A drug allergy is different from an intolerance. A drug intolerance, which is often a milder, non-immune-mediated reaction, does not depend on prior exposure.
Drug intolerance. Drug intolerance or drug sensitivity refers to an inability to tolerate the adverse effects of a medication, generally at therapeutic or subtherapeutic doses. Conversely, a patient is said to be "tolerating" a drug when they can tolerate its adverse effects.
Hypersensitivity (also called hypersensitivity reaction or intolerance) is an abnormal physiological condition in which there is an undesirable and adverse immune response to antigen. [1] [2] It is an abnormality in the immune system that causes immune diseases including allergies and autoimmunity. It is caused by many types of particles and ...
Immunology, dermatology. Drug rash with eosinophilia and systemic symptoms or drug reaction with eosinophilia and systemic symptoms ( DRESS ), also termed drug-induced hypersensitivity syndrome ( DIHS ), is a rare reaction to certain medications. It involves primarily a widespread skin rash, fever, swollen lymph nodes, and characteristic blood ...
Allergic reactions to drugs are a common cause of eosinophilia, with manifestations ranging from diffuse maculopapular rash, to severe life-threatening drug reactions with eosinophilia and systemic symptoms (DRESS).
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion , sneezing , or hives caused by pollen , dust mites , or animal allergy with ...
If you know that your pink eye is definitely caused by allergies, it’s fine to manage your symptoms with your usual allergy meds (like antihistamines or allergy eye drops) or other at-home ...
Anaphylaxis. Anaphylaxis (Greek: ana- ‘again’ + phulaxis ‘guarding’) is a serious, potentially fatal allergic reaction and medical emergency that is rapid in onset and requires immediate medical attention regardless of the use of emergency medication on site.
Unlike the more common Type I allergies (e.g. hay fever), contact allergies are not mediated by histamine, making the use of normal allergy medication (antihistamine) medication ineffective and other drugs have to be used to treat the allergic reaction.
Proliferation inhibitor for those with the presence of kidney or neurological disease. [1] Eosinophilic granulomatosis with polyangiitis ( EGPA ), formerly known as allergic granulomatosis, [3] [4] is an extremely rare autoimmune condition that causes inflammation of small and medium-sized blood vessels ( vasculitis) in persons with a history ...