Provigil is said to interfere with all forms of hormonal birth control and make them less effective.
Hormonal birth control includes:
- oral contraceptives ("the pill") - both estrogen/progesterone and progesterone only
- contraceptive patches
- vaginal ring (NuvaRing)
- injections (Lunelle, Depo-Provera)
- hormonal IUD/IUS (Mirena)
- implants: Norplant, Implanon, Jadelle
Provigil has no effect on barrier methods of birth control or intrauterine devices, so they are still effective in preventing pregnancy:
Barrier methods include:
- female condom
- cervical cap
- contraceptive sponge with spermicide
- copper IUD
I have been on depo-provera for years -- both to prevent pregnancy and to regulate my periods (I actually don't bleed anymore and love it). Since starting the Provigil, we have added condoms into the mix. I don't want to have to do that, but we DO NOT want children and are not ready for invasive surgical sterilization.
If I go off hormonal birth control altogether and just go for barrier, there's the period problem again.
Here is what it says in the prescribing information of Provigil (in the PRECAUTIONS section):
tablets, and for one month after discontinuation of PROVIGIL.
Here's what it says in the DRUG INTERACTIONS section:
Ethinyl Estradiol is a synthetic steroidal estrogen that is used in most all hormonal methods of birth control, so this is saying that it's being decreased in the body by 11-18% (I don't know that for sure, I'm just assuming that is what that clinical mumbo-jumbo is saying).
What are you doing to manage this? Have any of you actually gotten a number from your doctor about how much less effective Provigil makes hormonal BC? (Is it 3%, 13%, or 30%)? Does it make a difference which one you use? Is there one hormonal method that is less likely to see a reduction in efficacy?