Glad your boy is home. I know it how heartbreaking it is to see him all stitched up and in some pain Try and be positive and take one day at a time until you hear more from the vet. How much does Jasper weigh? An adult dog, around 60 lbs. can take 1 adult aspirin which is 325 mg. per tablet. I think baby aspirin has 81mg. per tab. Why not call the vet and ask? I would think he could handle 2 baby aspirin, but best to ask and be sure. Give your sweet Jasper a hug for me. We're thinking of you and him.