What are the 4 types of allergic responses to drug therapy?

Four different types of allergic reactions are immediate, cytotoxic, immune-complex mediated and delayed hypersensitivity reactions.

What is the most common allergic reaction to a drug?

Skin reactions (i.e. rashes, itching) are the most common form of allergic drug reaction. Non-steroidal anti-inflammatory drugs, antibiotics, chemotherapy drugs, monoclonal antibodies, anti-seizure drugs and ACE inhibitors are frequent causes of allergic drug reactions.

What are two types of drug allergic reactions?

Drug Allergy Symptoms

  • Skin rash or hives.
  • Itching.
  • Wheezing or other breathing problems.
  • Swelling.
  • Anaphylaxis, a potentially life-threatening reaction that can simultaneously affect two or more organ systems (for example, when there is both a rash and difficulty breathing)

What are 3 common allergic reactions?

Sneezing. Runny or stuffy nose. Itchy eyes, nose or roof of mouth. Red, swollen, watery eyes — a condition known as allergic conjunctivitis.

What are the 4 types of hypersensitivity reactions?

The four types of hypersensitivity are:

  • Type I: reaction mediated by IgE antibodies.
  • Type II: cytotoxic reaction mediated by IgG or IgM antibodies.
  • Type III: reaction mediated by immune complexes.
  • Type IV: delayed reaction mediated by cellular response.

What is an example of an adverse drug reaction?

Examples of such adverse drug reactions include rashes, jaundice, anemia, a decrease in the white blood cell count, kidney damage, and nerve injury that may impair vision or hearing. These reactions tend to be more serious but typically occur in a very small number of people.

What is a severe allergic reaction?

Anaphylaxis is a severe and potentially life-threatening reaction to a trigger such as an allergy.

What is Type C adverse reaction?

Type C Reactions Type C, or ‘continuing’ reactions, persist for a relatively long time. An example is osteonecrosis of the jaw with bisphosphonates. Type D Reactions Type D, or ‘delayed’ reactions, become apparent some time after the use of a medicine. The timing of these may make them more difficult to detect.

What is a Type B drug reaction?

Type B reactions are idiosyncratic, bizarre or novel responses that cannot be predicted from the known pharmacology of a drug and are associated with low morbidity and high mortality.

What are the 7 allergy symptoms?

Some of the symptoms of an allergic reaction include:

  • Itchy, watery eyes.
  • Itchy nose.
  • Sneezing.
  • Runny nose.
  • Rashes.
  • Hives (a rash with raised red patches)
  • Stomach cramps.
  • Vomiting.

What is an IgE reaction?

What are IgE-mediated food allergies? IgE-mediated food allergies cause your child’s immune system to react abnormally when exposed to one or more specific foods such as milk, egg, wheat or nuts. Children with this type of food allergy will react quickly — within a few minutes to a few hours.