About | Zyrtec for Dogs Calculator

Last reviewed: June 2026

Who Operates This Site

The Zyrtec for Dogs Calculator is published and operated by Archie Design App LLC, a software company registered in Wyoming, United States. We build free, focused web tools that give people clear, well-sourced answers to everyday questions.

What This Site Does

This site offers a free calculator that estimates a weight-based cetirizine (Zyrtec) dose for dogs, with tablet and liquid conversions, along with educational information about the medication and important safety warnings. It is an informational reference tool, not a veterinary service.

Where Our Information Comes From

Our dosing guidance reflects commonly cited canine cetirizine dosing (approximately 1 mg/kg, or about 0.5 mg/lb, given once or twice daily) and is cross-referenced against recognized veterinary sources, including:

How Our Content Is Produced

Content is drafted by our editorial team from the authoritative sources above, then reviewed for accuracy and clarity before publication. We use software tools to help draft and structure pages, but every page is checked by a person against primary sources before it goes live. When dosing guidance or safety information changes, we update the affected pages and revise the "last reviewed" date.

Important Disclaimer

This tool is for general educational and informational purposes only. It is not veterinary advice and is not a substitute for examination by a licensed veterinarian. Cetirizine is used off-label in dogs, and never give Zyrtec-D (pseudoephedrine) or any product containing xylitol — both are dangerous to dogs. Always follow your veterinarian's guidance, which takes precedence over any estimate shown here. See our full medical disclaimer.

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