Updated On September 23rd, 2025
Pet's info: Cat | Domestic Mediumhair | Female | spayed
I gave my cat 5mg Zyrtec last night and then wasn't thinking and gave her another 5mg this morning. Will she be okay???
1 Answer
Published on November 15th, 2019
She should be fine but you may notice some side-effects. The most common adverse effects of zyrtec are sedation, lethargy, vomiting, drooling (hypersalivation), and lack of appetite. If the side effects last more than 8 hours you should have her examined b your vet. I do not recommend you give her any more for at least another 24 hours.
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