Renal-adjusted gabapentin for an anxious CKD cat
NephrologyA 14-year-old spayed female domestic shorthair with IRIS stage 3 chronic kidney disease presents for a recheck. She is fractious in the exam room and difficult to handle, and her owner also reports stiffness consistent with osteoarthritis at home. The treating veterinarian wants pre-visit sedation and a chronic pain plan that accounts for her reduced renal clearance.
Gabapentin dosing for a 14-year-old cat with IRIS stage 3 CKD, both for pre-visit anxiety and for chronic osteoarthritis pain. How should I adjust for renal function?
Gabapentin is cleared almost entirely unchanged by the kidneys, so cats with chronic kidney disease reach higher plasma concentrations and show a prolonged half-life. Reduce the dose or extend the interval and titrate to effect, watching for sedation and ataxia.JVIM
Pre-visit anxiety
- A single oral dose of roughly 10 mg/kg given about 2 to 3 hours before travel reliably reduces stress and handling difficulty in cats.JFMS
- In stage 3 CKD, start at the low end (around 50 mg per cat rather than 100 mg) and reassess. Expect more pronounced and longer-lasting sedation than in a cat with normal renal function.JVIM
Chronic osteoarthritis pain
For ongoing pain, begin low and extend the interval, for example a reduced dose every 12 hours instead of every 8, then titrate upward slowly against comfort and sedation. Combining gabapentin with an appropriate multimodal plan often allows the lowest effective dose.JVIMJFMS
I could give the owner a dose I trusted for her kidneys, with the paper to back it up, before she even left the room.
All clinical decisions were made by the treating veterinarian.
Dr. Maya Ellison, DVM
Cedar Creek Animal Hospital, Oregon