@laural856, Hello Laura! I see that you are a 'newbie' on our forum. Welcome aboard! Other members may jump in with recommendations, but recently, I saw where someone really liked a brand called 'Renew Life' probiotics. It has 30 billion live cultures. Be sure to space your probiotics two hours apart from the time you take your antibiotics. That way they are not battling each other, and it gives the probiotics time to multiply and get situated. So glad you found us!