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How long does gabapentin sedation last in my cat after surgery?

Updated On September 23rd, 2025

Pet's info: Cat | Russian Blue | Female | spayed | 10.5 lbs

Betty is recovering from oral surgery & has been eating & doing well overall the past week. The vet tech insisted she should have liquid gabapentin (.25 ml x2). I begrudgingly followed the advice even though after surgery, the gaba pill made her stoned. They assured me this dose in liquid form wouldn't do that to her. I gave 1 dose to her yesterday around 3pm CST. Up until then she was relatively playful and eating well. She is out of it still. How long does it take to get out of her system?

1 Answer

Most Helpful Answer

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Answered By Penelope Graben, DVM

Veterinarian

Published on September 22nd, 2019

Hello, Gabapentin is a pain medication commonly prescribed to pets after surgery. Mild sedation can be noticed as a side effect, often due to the pain relief allowing the pet to get rest. Dosing should be given every 8-12 hours as needed. As she had her last dose over 12 hours ago, any side effects should be starting to wear off and will continue to do so if the medication is not repeated. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

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