Pills that make birth control less effective?!
Question: allergy pills
diet pills
vitamins
??
Answers: allergy pills
diet pills
vitamins
??
caffeine does!
antibiotics will make b/control less effective...some pain killers and allergy meds will as well...
Antibiotics are the big culprit. If you take one for an infection, use condoms for the rest of the pill pack.
St. John's Wort, an herbal remedy used to combat depression, also negatively affects the pill. Prednisone, a steroid that's sometimes used to treat asthma, is mentioned on this website: http://www.medicinenet.com/oral_contrace...
I've never heard of diet pills or vitamins that have this effect.