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My dog is twitching and has weak legs after booster shot. Normal?

Updated on September 23rd, 2025

Hi, is it normal for my dog to be twitching quite a lot and has weakness in his legs just after he's had his annual booster injection?

1 Answer

Most Helpful Answer

Ricardo Fernandez, DVM

Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on September 17th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! Possible side effects after vaccines include pain at the injection site, lethargy, weakness, inappetence and general discomfort. This should subside within 1-2 days. If it does not improve or it worsens, have him evaluated by a veterinarian for further assessment and treatment. Otherwise, he will likely start feeling better shortly. Good luck and best wishes!
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