drug allergies information from trusted sources:
Drug allergies are a group of symptoms caused by allergic reaction to a drug (medication).
A drug allergy occurs when your immune system reacts to a medication. A number of drugs can cause a drug allergy, including prescription and over-the-counter medications. The most common signs of a drug allergy are hives, rash or fever. You can have an allergic reaction to a drug even if it caused no reaction in the past.
A drug allergy or sensitivity happens when your body is irritated after taking a drug or medicine. You can even become allergic to medicines or drugs that you have taken before. You cannot spread an allergy to other people. It goes away when you stop taking the drug and the drug is out of your body.
Allergic reaction is an uncommon and unwanted side effect of medication.
Allergy is the term used to describe an adverse (bad) reaction that the body has to a particular substance. Most things that cause allergies are not harmful, and have no affect on people who are not allergic.
An acquired hypersensitivity to a substance (allergen) that does not normally cause a reaction. It is essentially an antibody-antigen reaction but in some cases the antibody cannot be demonstrated. The reaction is due to the release of histamine or histamine-like substances from injured cells. There may be a genetic predisposition to acquire a particular allergy. The number of exposures necessary to produce enough antibodies to cause an allergy varies. An allergy may occur the second time a person is exposed to a particular allergen, or may not occur until years later when repeated exposures have produced sufficient antibodies. Manifestations most commonly involve the respiratory tract or the skin. Allergic conditions include eczema, allergic rhinitis or coryza, hay fever, bronchial asthma, urticaria (hives), and food allergy. The immune system is a highly complex defense mechanism that helps us to combat infection. It does this by identifying "foreign bodies" and mobilizing the body's white blood cells to fight the infection. In some people, the immune system wrongly identifies a non-toxic substance as an invader, and the white blood cells overreact and do more damage to the body than the invader.
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A drug allergy is an allergic reaction to a medication. When the drug enters the body, it triggers a response by the immune system, which creates specific ...
Drug allergy - Wikipedia, the free encyclopedia
A drug allergy is an allergy to a drug, most commonly a medication. Medical attention should be sought immediately if an allergic reaction is suspected. ...