Pepcid Dose My Dog Ate A Good Bit Of Ibuprofen At Around 11 Or So Today.?

My dog ate a good bit of ibuprofen at around 11 or so today.? - pepcid dose

I gave him peroxide but threw only twice broken. I can not let him to the vet until tomorrow morning. Am I to him a dose of Pepcid Incase's ulcers have?