Hi Ambra, Radiation effects are usually felt between 10-14 days after starting, so it's pretty much on target. I take Gabapentin for neuropathy, but found lyrica was better, less drowsy too. The Gabapentin comes in different dosages, and the 100mg was more manageable than the 300mg. Anyway, I only like to take them at night due to it making me feel drowsy, and not 3x a day as the pain care manager wanted.
