Sometimes one kind of medicine changes the way another kind of medicine works in the body. This is true not only for prescription medicines, but also for medicines you just pick up off the shelf at the store. It’s also true for herbal products, vitamins, a few kinds of food, and sometimes even cigarettes!

These interactions between different products are not a concern with gabapentin. There seem to be no medicines, supplements, herbs, or vitamins that affect gabapentin in the body, and Gabapentin does not affect any other medicines or other products.

One exception is that some antacids, such as Maalox, interfere with the way the body absorbs gabapentin. This problem can be avoided if you wait at least 2 hours between doses of antacid and gabapentin.