Sure. If you want an antibiotic, look it up on a pet med site. walmartpetrx for example, or one of many others. They could be for dogs, cats, or fish. The pills you will receive should have the same color and the same number or letter code as the human version. If they look the same with the same code, they are identical, made concurrently with those intended for people. drugs.com is one of several sites where you can ID various meds. I have purchased several types and used them. I have a pharmacist in the family who obviously won't condone what I do, but admits many meds are the same.