Finishes taking augmentin a week ago I am on Yaz (drospirenone and ethinyl estradiol) swotch from. Yasmine this month had sex today used a condom is that safe?

Antibiotic/OCP. Rifampin is the only antibiotic that has been shown to reduce the efficacy of birth control pills. Augmentin (amoxicillin and clavulanate) has not been shown to have any effect. You should be safe, but there are never guarantees with this sort of thing.