So, unfortunately I need to get a route canal, and my dentist prescribed amoxicillin to take for a week prior to the procedure - I know it's not the same thing, but I remember my wife refusing to take antibiotics a while back because It would cancel the effects of her birth control pills... so does anyone have any insight on the effect amoxicillin might have on hrt?

I've already asked my doctor but to my luck, he's out of the office until august -_- not responding to emails or calls

I think that was the same antibiotic my DR. prescribed to me after taking out my wisdom tooth out. Apparently, it didn't seem to have any interaction with the estradiol I was taking orally, confirmed by his office and pharmacist BUT I did feel out of sorts during that time, very tired...maybe due to the antibiotics effect, nothing more. I don't recall seeing breast shrinkage, in fact, breast growth continued and all seemed well. I also took probiotics and regularly ate yogurt (kefir is even better) to maintain good bacteria in my gut as antibiotics can adversely affect gut flora. I didn't get nausea or have diarrhea, thankfully. Just really very tired.

I am no doctor but, birth control is much more precise than HRT. Takin it a few hours too late on the wrong day can lead to a pregnancy. If you miss HRT for a day not much happens.

So just a small disruption might lead to being fertile that month, but a small disruption wouldn't be that big of a deal to HRT I wouldn't imagine. Obviously your doctor will give you a better answer when they get back to you.

I think I remember it being said antibiotics and HRT don't mix.  Dont quote me on that though.  I do know however if you're getting laser hair removal, to be off the antibiotics for at least a week before continuing your hair removal. 

I've been on antibiotics many times and have never noticed an issue with my hrt,  you can use http://www.drugs.com/drug_interactions.html to check for possible interactions.  I do check on occasion what interactions may happen with my med combinations as I'm currently taking 6 different meds including my hrt, as well as multiple vitamins.

Even with the birth control pills, it was actually just a handful of antibiotics that could interfere, and even then it wasn't a high percentage of problems. Doctors and pharmacists just said "be careful when on birth control" to be EXTRA safe, basically, because for a few years no one was sure if it'd be an issue with a larger class of antibiotics.

http://www.walgreens.com/topic/faqhome/questionandanswer.jsp?questionTierId=600006&faqId=600022

Also, the mechanism of interference was specifically ORAL antibiotic combined with oral BC, and reduction of effectiveness rather than totally zeroing out the effect. You should be fine.

Do you actually need to take them?

If the tooth is draining pus, yes.  If the dentist showed a >5mm area of infection around the roots, yes.  You have an appointment in a week - unless you're in agony and the dentist didn't have time to start treatment, it's really just a stop gap to keep you out of pain.

BC pills and antibiotics - caution required, and medicos will advise accordingly otherwise they are liable to lose a wrongful birth lawsuit.  It's stupid, but that's the society we live in.  =_=

Antibiotics are prescribed in case an infection occurs. Better be safe than sorry. Once the infection occurs, it might be harder to fight it. That's why not only my dentist but also my surgeon (SRS) prescribed antibiotics after surgery, to avoid any potential complications.

There's been a gradual shift away from blanket use of antibiotics due to increasing microbial resistance.  A lot of the old measures (eg strict hand washing protocols, increasingly thorough sterile technique, use of essential oils to disrupt microbial membranes) are rising in use due to increasingly larger strains of super bugs.

Unfortunately, much of the microbial resistance has been due to intensive farming and blanket use of antibiotics in animal feed.  Society needs to review our stance on such practices.

I just think our modern society is way too obsessed with hygiene/cleanliness and I have the sneaking suspicion that it's probably quite healthy for the body to be exposed to germs from time to time in order to develop immunity and better resistance. I ain't afraid of dirt or germs! Just a little bit, of course, here and there. It's like getting a vaccination, but in a natural manner. Antibiotics, in my humble opinion and I ain't a doctor, should only be used in last resort situations when it's absolutely needed, not so commonly as they are today and in past decades but who am I to say anything about it?? Just my 2 cents...I certainly could be off.