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Why some drug allergies fade when our immune systems age

Among the things we often lose as we age – hair, height, innocence, friends – there’s at least one departure we can get on board with: the loss of an allergy. For instance, penicillin, an antibiotic you may want in your corner, is one of the most frequently accused drug allergens — but one that may be disarmed over time.

“Up to 95 percent of people who think they are allergic to penicillin are not, statistics say,” said Dr. Gailen Marshall, R. Faser Triplett Sr. M.D. Chair of Allergy and Immunology and professor of medicine, pediatrics, pathology and population health sciences at the University of Mississippi Medical Center. “So, many people are potentially avoiding a group of therapies…

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  United States Drug Allergy Registry

USDAR is a multi-site collaborative network of allergists and researchers committed to improving the diagnosis and reporting of medication allergies

 When is an allergy to an antibiotic really an allergy?

Many patients report allergies to antibiotics but often this will be based on vague symptoms or a historical entry in the clinical notes, which the patient cannot recall, e.g. a suspected allergy to penicillin during childhood.

 Women Have More Allergies to Common Medications

The most commonly reported allergies were to penicillins, sulfonamide antibiotics (sulfa drugs) and opiates. Among women, 15% were allergic to penicillins compared with 10% of men. Women also had significantly more allergies to other classes of antibiotics, and to NSAIDs, including aspirin and ibuprofen. Among the most common drug-allergy symptoms are hives, rash or fever.

Articles of Interest

A Review of Drug Allergies: Diagnosis and Management

This article aims to provide a simple clinical review of drug allergy and plan of action for the diagnosis as well as management of some of the most common DHRs, such as allergies to acetylsalicylic acid, non-steroidal anti-inflammatory drugs, penicillins, sulpha drugs, cephalosporin, contrast media in imaging procedures, anaesthetic agents, and vaccines.

Allergic to Penicillin? You May Not Be

Nineteen out of 20 people who have been told they are allergic to penicillin are not truly allergic to the drug.

Antibiotics May Raise the Risk of Allergies

Infants given antibiotics were at increased risk of asthma and childhood allergies, a study suggests.

Approach to beta-lactam allergy in critical care

Being misled by the terms “penicillin allergy” and “cephalosporin allergy,” which should be eliminated.

Contrast Allergies for the Emergency Medicine Physician

The main points I try to keep in mind is that contrast reactions are rare; they are rarely severe; and if a patient did not have a prior severe reaction (especially with pretreatment), it is very unlikely that they will have a severe reaction. Pretreatment probably does little but there are only so many hills to die on and most radiology departments won’t let us completely forego pretreatment.

Could You Be Allergic to Additives in Food or Drugs?

Unlike severe allergic reactions to a food, like peanuts, which occur immediately, the reactions to additives tend to be delayed for several hours or even days, making them difficult to trace, he said, and there are no good diagnostic tools for identifying food additive allergies.

Do you really have a penicillin allergy?

Chances are, you or someone you know is one of the 10% of Americans with a documented penicillin allergy. But just because you were told you had a penicillin allergy, or had one in the past, does not mean you have one now. People with a penicillin allergy history have their allergy disproved with allergy testing more than 90% of the time.

Drug Allergies

Adverse drug reactions (ADRs) are broadly divided into predictable (related to pharmacologic actions of the drug in otherwise normal individuals) and unpredictable reactions (related to individual’s immunological response and, on occasion, to genetic differences in susceptible patients). ADRs should be differentiated from adverse drug events (ADEs). ADEs extend beyond ADRs to include harm related to medication errors and drug/food interactions. While knowledge of ADEs is important in efforts to improve patient safety, ADRs are the primary focus of regulatory agencies and post-marketing surveillance.

Drug Allergies: An Epidemic of Over-diagnosis

Patient reports of drug induced reactions grossly overstate the true prevalence.

Drug Allergy & Allergic Reactions to Medications

Allergic reactions to drugs or medications usually do not occur the first time a person takes a specific drug. It could take years to develop a drug allergy after constant exposure. You may also have been exposed to the medication or medication in the same drug class without knowing it. It is important to identify a drug allergy early because the symptoms can be very uncomfortable or even life-threatening.

Drugs Cause Most Fatal Allergic Reactions, Study Finds

The most common cause of fatal allergic reactions in the United States are medicines, especially antibiotics and radiocontrast agents used in imaging studies, a new analysis found.

He’d Never Had Allergies, But Suddenly He Had Two Episodes That Nearly Killed Him. Why?

PEG, as it’s called for short, is an inert chemical used in both industry and medicine, as a lubricant and filler in products ranging from hand lotions to hair spray to gel caps to pills. And, as this patient discovered, PEG is also used in some steroid preparations and some laxatives.

Introducing the Drug Allergy Module

Our new Drug Allergy Module gives you detailed drug allergy and cross-sensitivities information. You can help your clinical users avoid severe drug allergies and manage mild symptoms with ease.

Is it a side effect or drug allergy?

Medications can cause negative effects even while working well. But there’s a difference between a side effect — a potentially expected, albeit unpleasant, reaction to a drug — and a drug allergy — a reaction of your immune system. Incorrectly calling a side effect an allergy might cause a drug or related drugs to be flagged in your medical record, preventing providers from prescribing an otherwise appropriate medication.

Medication allergies, why do they occur?

One of the most frequently asked questions in the area of allergology relates to the common confusion between symptoms of an allergy to medication and side effects. It is important to know how to differentiate one from the other, as their consequences are also different.

Overlooked inactive ingredients in pills can trigger allergic reactions, study finds

Commonly prescribed oral medications in the U.S. are mostly made up of ingredients that have little to do with the condition being treated, a new study finds. These “inactive” substances, like lactose or gluten, can also be the source of allergies and intolerances.

Penicillin Allergy: Less Common Than You Think

If you’ve grown up believing you’re allergic to penicillin, don’t be so quick to turn down the antibiotic next time you’re suffering from a bacterial infection.

Rashes from amoxicillin: Is it a true allergy?

About 5 to 10 percent of children taking amoxicillin or Augmentin will develop a skin rash at some point during the course of the medication. The majority of these reactions are non-allergic, and most are caused by viruses. So, how can you tell the difference?

The economics of drug allergy

As drug allergy research aims to inform clinical practice, implementation of best practices may be influenced by financial resources required to incorporate new interventions and the resulting clinical and economic returns on those resource investments. The present review summarizes new insights into the economics of drug allergy...

The Most Common Medications That Cause Allergic Reactions

When we think of allergies, the first types that often come to mind are ones related to food, animals, or the environment. However, there’s another very serious type of allergy that can lead to many issues as well, which involves taking a drug that your body’s immune system might fight against and create histamine. Medications can do a lot to our bodies, even when they are designed to help us.

Unravelling the Wonder Drug: Penicillin Allergy

Although antibiotics such as penicillin are life saving drugs, many people opt to avoid using them due to assumptions of being allergic to penicillin.

What To Do If You Suspect An Allergy To Medication?

Common medications that can trigger allergies include, but are not limited to, penicillin and other antibiotics that contain sulfonamides, anticonvulsant medicines, Aspirin, ibuprofen, and other NSAIDs, and some chemotherapy drugs. Drug allergies can be hard to diagnose since most of its symptoms, such as asthma and rashes, are similar to the symptoms of other health conditions.

Why prescription drug ads always have that absurd list of side effects at the end

The FDA recently issued new draft guidance for improving risk communication in direct-to-consumer drug ads. Among the recommendations, companies would be required to deliver information about their products in plain language, and they wouldn't need to mention every side effect of a drug, only the "most serious and the most common" ones.

Resources

4 Facts About Drug Allergies You Need to Know

The most common symptoms of drug allergies are Skin-based (itching, rash, hives, puffing) and Bronchial (coughing, sneezing, congestion, swelling in mouth or throat). Some people can also exhibit symptoms like dizziness, stomach upsets or nausea.

Find the Allergist

As with other allergic reactions, these symptoms can occur when your body’s immune system becomes sensitized to a substance in the medication, perceives it as a foreign invader and releases chemicals to defend against it.

Live Science

About 20 percent of the population reports an allergy to one or more medications, said Kimberly Blumenthal, an allergist and researcher at Massachusetts General Hospital in Boston, who has studied drug allergies.