Can dogs take pepcid everyday? Asked By: Georgiana McDermott. Date created: Sat, Mar 13, 2021 10:59 PM. Best answers. Pepcid Dosage for Dogs: For both dogs and cats, the dosage is one 10-milligram tablet for a 20-pound dog every 12-to-24 hours, says Dr. Klein. It is best to give this medication one hour before meals. Check with a veterinarian to verify the dosage is accurate for your pet. Answered By: Mervin Runte. Date created: Mon, Mar 15, 2021 1:02 AM. FAQ. =I Are air diffusers bad for ...