Hi Everyone, The last couple of times I took a Viocodin for pain, I took it right before bed. I think this is so weird, but it actually kept me awake. It did help with the pain, but I felt as though I had drank too much coffee or something. That never happened to me before. Whenever I took one during the daytime, it didn't have that effect on me. Has anyone else experienced this? I rarely take Viocodin - only when the pain is extreme. I have FMS and depression/anxiety. That is the only pill I took that night. I didn't take my Antivan that night - just the V. Thanks!