 [ Symptoms ] is ed a side effect of gabapentin i had shingles 3 years ago and it left me with tenderness in the area of the original rash my doctor has me on large dosages of gabapentin 3x400mg   3 times a day although i can not be sure during that time period difficulty reaching a full erection has appeared and i must think it comes from something besides old age [ Disease ] no this would not be the treatment of choice for a burn