The nurse is counseling a woman who is beginning anti tubercular therapy with rifampin. The patient also takes an oral contraceptive.
Which statement by the nurse is most accurate regarding potential drug interactions?

a. "You will need to switch to another form of birth control while you are taking the rifampin."
b. "Your birth control pills will remain effective while you are taking the rifampin."
c. "You will need to take a stronger dose of birth control pills while you are on the rifampin."
d. "You will need to abstain from sexual intercourse while on the rifampin to avoid pregnancy."