Do Antibiotics affect performance?

I’m re-opening this thread to see if anyone had experience with exercise and amoxicillin 500 mg. I’m not sick I had a root canal and so they’re making me take antibiotics for a week. I have one more hard workout and a long ride this weekend and then it’s a rest week. Knowing me I’ll probably attempt the over under work out Saturday and I was thinking I’ll stick to the trainer so if I feel weird I’m not in the middle of nowhere. Also going to take plenty of extra electrolytes to prevent dehydration.
Sang advice would be greatly appreciated!