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» Scarleteen Boards: 2000 - 2014 (Archive) » EXPERT ADVICE » Ask Scarleteen » Birth Control Pills and Vitamin C

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Author Topic: Birth Control Pills and Vitamin C
atm1
Scarleteen Volunteer
Member # 37835

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So I've read in a couple places that very high doses of vitamin C can make birth control pills less effective. I'm assuming "very high doses" would include things like Airborne that as 1000mg of it in each dose (and they recommend 3 doses per day).

Are those assumptions right? When I found out about the possible interaction, I stopped using Airborne (which made me sad, it totally helps me get better faster) when I was relying on the birth control pill alone for contraception.

Also, I feel like someone should have told me about that... I only found out when I was doing more research on my type of pill when I first started considering going off it. No doctor/pharmacists warned me that something so simple as vitamin C could interact with the pill. Do you guys think that's a common experience? I would have been very unhappy if I didn't know about something like this, thought I was a perfect user, and ended up pregnant...

One last thing: What does the vitamin C do? limit your body's ability to absorb the pill?

Thanks!

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Heather
Executive Director & Founder
Member # 3

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A high dose in most resources is usually listed as over 2000mg taken at any one time. So few people do high dose Vitamin C like that (especially since it'll often really upset a tummy), that you won't often find it on pill warnings.

I would not be concerned about doses of less than that, but with the airborne, I'd stick to two doses a day.

What Vitamin C can do when it comes to BC and a woman's reproductive system is to inhibit the production or assimilation or progesterone (to the dgree that while I wouldn't advise relying on it, some natural health practitioners use constant high doses as a form of natural birth control) which is an obvious potential issue with a medication which works by keeping your estrogen and progesterone at a very precise, controlled level.

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atm1
Scarleteen Volunteer
Member # 37835

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Thanks!

I'm sick now and realized I could definitely use Airborne because my boyfriend and I won't see each other for the next six weeks. Then I just started to wonder about the issue. I had no idea that vitamin C could do that... that's really interesting.

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