I have strep throat & started taking amoxicillin yesterday its twice a day @ 875mg. i noticed today that my urine is bright yellow almost orange color?

Vitamin overdose: You might also be taking some vitamin supplements? Particularly B-vitamins? I don't actually recommend vitamin supplements unless you have a 'real' reason to take them. I don't think the Augmentin (amoxicillin and clavulanate) is at fault here-but it's quite possible you're dehydrated from your illness. I would drink as much fluid as you can: thin soups, ginger tea, lemonade, coconut water etc to support your body through this