If you use a condum while on birth control and antibiotics will you most likely be safe? took azithromicin, but had been on b control for years

Should be ok: The risk with zithromax is more theoretical in reducing efficacy of birth control - but the added addition of condoms means you are likely fine.

Yes: Condom will protect you from unintended pregnancy while antibiotic may have interfered with protection from pill.

Yes you will be: Yes it will be safe if you use condoms when taking birth control pills and azithromycine.