The Student Room Group

Reply 1

Painkillers don't affect the Pill at all - its talking about antibiotics and things like that.

Reply 2

St Johns Wort (herbal remedy, some people take it for anxiety, depression etc) also affects the effectiveness of the pill.

Reply 3

vit c tablets turn a low dosage pill into a high dosage one by doubling the levels of oestrogen!

strange but true..