However, this list may not include all potential substances. Websep 22, 2018 · not likely: It is unlikely that neurontin (gabapentin) will trigger a false positive urine test for drugs. However, if you are taking other medications then these. Websep 1, 2024 · along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical. If you tested positive for gabapentin but want to dispute the results, you can request another test as. There have been some reports of gabapentin misuse and abuse, particularly in people with a.