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Antibiotic and Pill

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KJK2
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Antibiotic and Pill

Unread post by KJK2 »

I was taking Amoxicillin which can decrease the effectiveness of the Lo Loestrin Fe I take. My question is if I backed up all while using the antibiotic and finished the first day of a new pack. I continued to back up for the seven days after using the antibiotic. My question is would my pill then still be effective?
Sam W
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Re: Antibiotic and Pill

Unread post by Sam W »

Hi KJK2,

The best person to direct this question to is the healthcare provider who proscribed the amoxixillin to you. And, in truth, we recommend using the buddy method of condoms plus pill even when the pill isn't potentially compromised because it is more effective at preventing pregnancy (plus it protects against STIs). So you may want to keep backing up anyway
And you to whom adversity has dealt the final blow/with smiling bastards lying to you everywhere you go/turn to and put out all your strength of arm and heart and brain/and like the Mary Ellen Carter rise again.
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

Well I called my pharmacist and she said the antibiotic would be out of my system by the third day after finishing the pill. Exactly seven days later I only had a situation with precum. I know precum is a low risk especially after the guy has urinated beforehand. I was just curious if the seven days of perfect pill use would offer an other protection? Also I've been on the pill for over 2 years
Heather
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Re: Antibiotic and Pill

Unread post by Heather »

By all means, the pill offers additional pregnancy protection, even if and when it might be somewhat less effective due to something like a possible medication interaction.

So, it's not like your pill, even if the antibiotics DID interact, would go from being 91% effective in typical use to being 0% effective, unless you simply stopped taking it altogether.
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

So the antibiotics wouldn't substantially render the birth control useless is what you're saying? I just wouldn't have the full protection as I would normally with taking my pill at the same time everyday.

My other question is since it would be out of my system three days after finishing the antibiotic then taking the bc for an additional week after would my effectiveness be back up to around 94% (since 99.7% is more in lab studies) or is that something we just won't know?
Heather
scarleteen founder & director
Posts: 9731
Joined: Sun Jul 27, 2014 11:43 am
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Awesomeness Quotient: I have been a sex educator for over 25 years!
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Re: Antibiotic and Pill

Unread post by Heather »

Exactly. They just may, potentially, make it less effective.

We couldn't possibly guess at percentages like that, though. Again, this is a conversation best had with your prescribing physician or pharmacist (though they won't be able to give figures like that either, since to my knowledge, we don't have the studies to provide that kind of data, and since effectiveness for methods is figured for a year's time, it would be impossible, I'd think, to get figures like that for something like this that isn't about a full year).

Rather, figure that typical use rates factor in for things like -- in one year of use -- using antibiotics or a missed or late pill every now and then.
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

Alright thank you so much for clearing that up! :)
Heather
scarleteen founder & director
Posts: 9731
Joined: Sun Jul 27, 2014 11:43 am
Age: 54
Awesomeness Quotient: I have been a sex educator for over 25 years!
Primary language: english
Pronouns: they/them
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Location: Chicago

Re: Antibiotic and Pill

Unread post by Heather »

Sure thing! :)
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

I guess I didn't read as closely the last part haha. So the pill with use of antibiotic falls within the typical use category?
Mo
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Re: Antibiotic and Pill

Unread post by Mo »

The pill plus an antibiotic known to impact its effectiveness would fall under typical use; if you're using any other antibiotic, as long as you're following the pill usage guidelines in all other ways, that's still perfect use.
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

Just to confirm and sort of just get a yes or no: still taking the pill while on antibiotics and only being exposed to precum would leave me with a low risk rather than a high risk because it is still using two methods?
KJK2
not a newbie
Posts: 13
Joined: Wed Dec 17, 2014 7:51 am
Age: 29
Location: Georgia

Re: Antibiotic and Pill

Unread post by KJK2 »

Just to confirm and sort of just get a yes or no: still taking the pill while on antibiotics and only being exposed to precum would leave me with a low risk rather than a high risk because it is still using two methods?
Sam W
previous staff/volunteer
Posts: 10320
Joined: Mon Jul 28, 2014 9:06 am
Age: 33
Awesomeness Quotient: I raise carnivorous plants
Primary language: english
Pronouns: she/her
Sexual identity: queer
Location: Coast

Re: Antibiotic and Pill

Unread post by Sam W »

If you mean using the pill plus withdrawl, then yes, that has a lower risk of pregnancy than using the pill and having someone ejaculate inside or on the vagina or vulva.
And you to whom adversity has dealt the final blow/with smiling bastards lying to you everywhere you go/turn to and put out all your strength of arm and heart and brain/and like the Mary Ellen Carter rise again.
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