Drug or medication allergies are caused when the immune system mistakenly creates an immune response to a medication. Symptoms of a drug allergic reaction include:
The most common drugs that people are allergic to include:Read more: Drug Allergy (Medication Allergy) Article
Multimedia: Slideshows, Images & Quizzes
Could I Be Allergic? Discover Your Allergy Triggers
Allergies are an overreaction of the immune system where the body's defenses react to substances such as pollen, food and more....
Picture of Morbilliform Drug Eruption
Morbilliform rash on the trunk occuring 1 week after the administration of a systemic cephalosporin. See a picture of...
Picture of Morbilliform Drug Eruption on Face
Morbilliform rash eventually spread to the face and extremeties of the same child. See a picture of Morbilliform Drug Eruption on...
Picture of Fixed Drug Eruption
A large red-violet plaque on the arm of a child. See a picture of Fixed Drug Eruption and learn more about the health topic.
Picture of Amiodarone
A striking slate-gray pigmentation in a photodistribution of the face. See a picture of Amiodarone and learn more about the...
Picture of Urticaria
This is a close-up view of wheals with white-to-light-pink color centrally and peripheral erythema. See a picture of Urticaria...
Nasal Irrigation: Natural Relief for Cold & Allergy Symptoms
Clogged sinuses and congestion bothering you? Nasal irrigation can relieve sinus symptoms associated with colds and allergies....
Home Allergy Quiz: Is Your Home Allergy-Proof?
Take this home allergy quiz and test your knowledge on allergens, dust mites, pollens and more to see how allergy-proof your home...
Top 13 Ways to Tame Eye Allergies
Eye allergies, or allergic conjunctivitis, cause itchy eyes and other allergic symptoms. Avoiding allergens and using medicated...
IMAGESSee what a phototoxic drug reaction looks like as well as more allergic skin disorders See Images
Related Disease Conditions
The word "rash" means an outbreak of red bumps on the body. The way people use this term, "a rash" can refer to many different skin conditions. The most common of these are scaly patches of skin and red, itchy bumps or patches all over the place.
How to Stop Anal Itching
Anal itching is the irritation of the skin at the exit of the rectum, known as the anus, accompanied by the desire to scratch. Causes include everything from irritating foods we eat, to certain diseases, and infections. Treatment options include over-the-counter medications, using moist pads, and gentle cleaning and drying of the anus.
Chronic Rhinitis and Post-Nasal Drip
Chronic rhinitis and post-nasal drip symptoms include an itchy, runny nose, sneezing, itchy ears, eyes, and throat. Seasonal allergic rhinitis (also called hay fever) usually is caused by pollen in the air. Perennial allergic rhinitis is a type of chronic rhinitis and is a year-round problem, often caused by indoor allergens, such as dust, animal dander, and pollens that may exist at the time. Treatment of chronic rhinitis and post nasal drip are dependent upon the type of rhinitis condition.
Diarrhea (Causes, Medicine, Remedies, Treatment)
Diarrhea is a change is the frequency and looseness of bowel movements. Symptoms associated with diarrhea are cramping, abdominal pain, and the sensation of rectal urgency. Causes of diarrhea include viral, bacterial, or parasite infection, gastroenteritis, food poisoning, and drugs. Absorbents and anti-motility medications are used to treat diarrhea.
Hives (Urticaria & Angioedema)
Hives, also called urticaria, is a raised, itchy area of skin that is usually a sign of an allergic reaction. The allergy may be to food or medications, but usually the cause of the allergy (the allergen) is unknown.
Itch (Itching or Pruritus)
Itching can be a common problem. Itches can be localized or generalized. There are many causes of itching to include: infection (jock itch, vaginal itch), disease (hyperthyroidism, liver or kidney), reactions to drugs, and skin infestations (pubic or body lice). Treatment for itching varies depending on the cause of the itch.
Fainting (Syncope) Symptoms, Causes, Treatment, and Prevention
Fainting, also referred to as blacking out, syncope, or temporary loss of consciousness has many causes. Often a person will have signs or symptoms prior to the fainting episode. Diagnosis and treatment depends upon the cause of the fainting or syncope episode.
Nausea and Vomiting (Causes, Natural Remedies, Diet, Medication)
Nausea is an uneasiness of the stomach that often precedes vomiting. Nausea and vomiting are not diseases, but they are symptoms of many conditions. There are numerous cases of nausea and vomiting. Some causes may not require medical treatment, for example, motion sickness, and other causes may require medical treatment by a doctor, for example, heart attack, lung infections, bronchitis, and pneumonia. Some causes of nausea and vomiting may be life threatening, for example, heart attack, abdominal obstruction, and cancers. Treatment of nausea and vomiting depends upon the cause.
Anxiety is a feeling of apprehension and fear characterized by symptoms such as trouble concentrating, headaches, sleep problems, and irritability. Anxiety disorders are serious medical illnesses that affect approximately 19 million American adults. Treatment for anxiety may incorporate medications and psychotherapy.
An allergy refers to a misguided reaction by our immune system in response to bodily contact with certain foreign substances. When these allergens come in contact with the body, it causes the immune system to develop an allergic reaction in people who are allergic to it. It is estimated that 50 million North Americans are affected by allergic conditions. The parts of the body that are prone to react to allergies include the eyes, nose, lungs, skin, and stomach. Common allergic disorders include hay fever, asthma, allergic eyes, allergic eczema, hives, and allergic shock.
Anaphylaxis is a serious allergic reaction that affects a number of different areas of the body at one time, and can be fatal. Causes of anaphylaxis can be food allergy, latex allergy, allergy to insect or but stings/bites, asthma, or other materials or conditions. Symptoms include flushing, itching, hives, anxiety, rapid or irregular pulse. Severe symptoms may be throat and tongue swelling, swallowing, and difficulty breathing. Some disorders appear similar to anaphylaxis such as fainting, panic attacks, blood clots in the lungs, heart attacks, and septic shock. If you think that you may be having an anaphylactic reaction, seek emergency care or call 911 immediately.
Local ResourcesFind a local Asthma & Allergy Specialist in your town
Treatment & Diagnosis
Medications & Supplements
- Penicillin (Antibiotics)
- Bronchodilators (Drug Class)
- Insulin for Diabetes Treatment (Types, Side Effects, and Preparations)
- Antihistamine Shots (Injections)
- Drug Interactions
- loratadine, Claritin, Claritin RediTabs, Alavert, Claritin Hives Relief, Children's Claritin
- iodine, strong - oral
- EpiPen (epinephrine auto-injector)
- epinephrine injection (Auvi-Q)
Prevention & Wellness
- Heartburn Drugs Might Bring Allergy Woes
- Are 'Inactive' Ingredients in Your Drugs Really So Harmless?
- Testing for Penicillin Allergy May Cut 'Superbug' Infection Risk
- Penicillin Misconceptions May Raise Post-Op Infection Risk
- Say Goodbye to Allergy Misery in Spring
- Medicines Are Biggest Culprit in Fatal Allergic Reactions: Study
- Faster Drug Approvals Linked to Increased Safety Issues
- Internet Search History May Reveal Unknown Drug Side Effects
- Study: Allergies Need to Be Taken Seriously
- Health Tip: Reduce Your Risk of Adverse Drug Reactions
- Health Tip: Having an Allergy to Medication
- Kids' Penicillin Allergy May Not Signal Other Drug Reactions