I take 10billion units a day(4 pills) 2 at noon and 2 at 6pm. I take the ones that have
to be kept in the fridge, they are supposed
to be more potent.
Also, when I take the Flagyl I eat wheat crackers(they are saltine crackers but wheat instead of the regular saltine) with it, they have them at Kroger, I don't know if you guys have Krogers where you are but the crackers helped me a TON!
Also, are you taking both of your abx at once(same time)? The flagyl and the Zithromax?