Gabapentin can cause allergic reactions.

In addition to the usual side effects, gabapentin allergy can occur, in which case taking this medication may result in an allergic reaction.

If you have never taken gabapentin and are unsure if you are allergic to it, it is wise to tell your doctor about any previous drug reactions you have experienced as well as any allergies you may have to certain foods, dyes, preservatives, artificial additives, or other substances. This information can help your doctor determine whether you are more likely than not to experience an allergic reaction to gabapentin.