I posted this on Chat but just spotted this section and thought people might know a bit more here.
I know you're not supposed to take them together as it makes contraception less effective, but is there any other reason not to take them at the same time?
I mean is it just a bad idea because it makes the contraception less effective or is it actually potentially dangerous or unhealthy to take them together for another reason?
If someone had the implant for instance and started taking St John's wort while she still had the implant it wouldn't harm her would it? It would just make the implant less effective therefore it would be a idea to abstain from sex or use other methods of contraception whilst she's taking it.
But I assume that once she stops taking st john's wort then the effectiveness of the implant would go back to normal. Isn't that how it works?