概述
药物过敏症状是您对药物过敏时发生的影响。服用药物触发你的免疫系统做出反应。这些反应的症状与药物的其他副作用不同。它们的范围从轻度到严重，具有过敏性的症状是最严重的。
Many drug allergies will not cause symptoms the first time you use the drug. In fact, you may use the drug several times without any reaction. When a drug does cause a reaction, though, the symptoms usually appear soon after you take it. And anaphylaxis symptoms usually begin within moments of taking the drug.
Learn more about drug allergy causes »
在轻度过敏反应期间，您可能有一个或多个以下症状：
- skin rash
- 麻疹
- itchy skin or eyes
- fever
- joint aches or swelling
- tender lymph nodes
Severe symptoms often indicate a life-threatening reaction called anaphylaxis. This reaction affects many of your body’s functions. Anaphylaxis symptoms include:
- tightening of your throat and difficulty breathing
- swelling of your lips, mouth, or eyelids
- abdominal pain
- nausea, vomiting, or diarrhea
- dizziness or lightheadedness
- confusion
- palpitations (rapid or fluttering heartrate)
如果您对药物进行严重反应的任何症状，您应该立即寻求紧急医疗保健。
You should call your doctor any time you have an unexpected symptom from a drug. Mild allergic symptoms usually stop once you stop taking the drug. However, you shouldn’t stop taking a drug without talking to your doctor first.
Your doctor will also need to rule out other possible causes of your symptoms. Having the doctor see you while you are experiencing a reaction may help them confirm the cause of your symptoms. It may also help your doctor determine the best treatment for the reaction or help them choose a different drug.
Many drugs can cause an allergic reaction. It’s important that your doctor know your complete medical history when prescribing a drug to you. Make sure you tell your doctor about any allergies you have, including reactions you’ve had to any medication you took in the past. If you’ve had an allergic reaction to a drug, you shouldn’t take that drug again.