Although many people claim to be allergic to drugs, this is not a very common condition. Therefore, it is important to consult your physician if you develop any unusual symptoms which may be related to a drug, in order to find out if it is a possible allergy or if it is a side effect.
If you have been diagnosed of a drug allergy, you should carry with you a detailed report of your physician which states the diagnosis, to which drug/s you are allergic, which drug/s you should avoid and which are the alternatives you may use. In some cases, when a patient is allergic to a very frequently used drug or has experienced a severe reaction, a medical alert should be considered (bracelet, pendant, etc.).