I took one antibiotic pill after unprotected sex. Is it necessary to take Plan...

[Hello]

...B while on birth control? (Sorry the question was phased oddly.)

Antibiotics are said to lessen the affect of birth control.
I took a single dose of 100mg nitrofurantoin/ microbid after sex.
(forgetting that the two do not mix)

Does one antibiotic pill affect birth control to the extent that Plan B should be taken. I'm not sure if I should be worried or not.

 

[Jeanette H]

only if you forgot to take the pill on that day. but if you want to take it just to be safe then do it.