Drug Allergies Directory
Some drugs trigger allergic reactions in certain people. This happens when the body believes the drug is a foreign substance that is dangerous. The body tries to attack the drug with histamine and other substances in order to expel it from the body. Some of these allergic reactions can be life-threatening, while others may cause itchy skin, hives, congestion, or other less serious symptoms. Penicillin is a very common drug allergy. Treating drug allergies mostly consists of symptom relief, but for serious reactions, epinephrine may be given. Follow the links below to find WebMD's comprehensive coverage about how drug allergies are caused, how they're treated and prevented, and much more.
Most Common Drugs That Cause Allergies
Any drug can set off an allergic reaction. Here's a look at some of the drugs that are more likely to cause problems.
Allergy Medicines: Is OTC or Prescription Better?
Can you take a medicine from the store when you have an allergic reaction, or should you get a prescription? Learn about the differences so you can decide.
Stevens-Johnson Syndrome (SJS)
Stevens-Johnson syndrome is a rare, very serious disease that makes skin blister and peel off. You'll need special care to prevent long-term damage to your skin and other organs.
What Is an Allergic Reaction?
If you were having an allergic reaction, would you know it?