Is there anyone that is using Gabapentin regularly? My almost 12 Sheltie has had a long history of elbow arthritis. She is failing, many meds and combos tried. What is working as well as anything is Gabapentin. The vet is increasing her 100 mg every 8 hrs to 150 mg every 8 hrs, however Gabapentin does not come in 50mg tablets or capsules. I have to try and split the capsules and am having a heck of a time. Any ideas? I was wondering also if anyone using Gabapentin could tell me how much they have given, for how long and if it helped. My Sheltie is 23 lbs.