Free · vet-informed

Pet medication dosing, done right.

Enter your pet's weight and get a safe, clearly-explained dose — with a safety check built in. For dogs and cats.

Dogs · diphenhydramine Dog Benadryl dosage Safe Benadryl dose by weight, with a chart and safety check. Open calculator Cats · diphenhydramine Cat Benadryl dosage Safe Benadryl dose by weight, with a chart and safety check. Open calculator Dogs · famotidine Dog Pepcid dosage Safe Pepcid dose by weight, with a chart and safety check. Open calculator

Built to be the one you trust.

Safety check first

A built-in screener flags combination products, xylitol, and contraindications before it ever shows a dose.

Dog and cat

Species-aware dosing and contraindications — not a one-size-fits-all number.

Real, measurable amounts

Results in mg plus tablets or millilitres, rounded to an amount you can actually give.

No email, no clutter

Instant, free, mobile-first. Print or share any result with a link.

Important: DoseMyPet provides educational estimates only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian before giving any medication to your pet.