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Doctor insights on: Does Penicillin Kill Good Bacteria In The Intestines

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Does penicillin kill protozoa. If not, what microorganisms apart from bacteria does it work against?

Does penicillin kill protozoa. If not, what microorganisms apart from bacteria does it work against?

Penicillin activity: Penicillin only kills bacteria. There are other types of germs -- viruses, fungi, protozoa and infectious proteins. For those, other treatments are involved. Penicillin these days has only a few uses, because of resistance (it's one of the oldest antibiotics still used) and the proliferation of other antibiotics that are in some ways easier to use. Talk to an ID doc or pharmacist to learn more. ...Read more

Intestine (Definition)

The gastrointestinal tract starts at the mouth, travel down the tunnel (esophagus), which connects to the stomach, which then empties into the duodenum, jejunum, and ileum---the three parts of the small intestine (@25 feet). This empties into the colon or large intestine (about 5 feet), which then becomes the sigmoid colon, rectum and out the anus. So, every morsel eaten ...Read more


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What medication like peniciiin can I use for tonsil stones or to kill bacteria?

What medication like peniciiin can I use for tonsil stones or to kill bacteria?

None: Tonsil stones are usually not a sign of infection and won't likely respond to antibiotics. My patients usually will do something like use a water pick or qtip to work them out. The only way to prevent them is to remove your tonsils. ...Read more

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Does the "beneficial bacteria" in yogurt kill candida albicans overgrowth in your intestinal tract?

Does the "beneficial bacteria" in yogurt kill candida albicans overgrowth in your intestinal tract?

Candidal overgrowth: This urban myth has not been scientifically proven, but it has not been disproved. The "balance" between bacterial flora and yeast cells in the intestinal tract (colon) is generally regulated by what you eat. If you choose to add unpasteurized yogurt to your diet it may well change the character of your stools, since it contains lactobacilli. Same available as a probiotic for oral use. ...Read more

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Where does the penicillin acctask the bacteria?

Where does the penicillin acctask the bacteria?

PBP (its complicated: Bacteria have a cell wall for protection. The building blocks of this wall are peptidoglycan (pg). Pg is arranged in 2 ways to make 2 types of bacteria: gram (+) or gram (-). Penicillin (pcn) only works in gram (+) bacteria. Pg must be cross-linked to protect the bacteria. Pcn attaches to pbp's (penicillin binding proteins) which prevents pg cross-linking. Some bacteria have pbp's resistant to pcn. ...Read more

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Are penicillins effective against gram-positive bacteria? Can't take sulfa, fluoroquinolones, or cephalosporins.

Are penicillins effective against gram-positive bacteria? Can't take sulfa, fluoroquinolones, or cephalosporins.

Penicillin are ok.: Penicillins are effective against gram + organism (G+), however you will need a culture to properly identify the bacteria.there is different type of penicillin base antibiotics and they can treat a variety of infections caused by (G+), such as otitis, pharyngitis, skin infection, etc. Again it will depend on the type of infection as well as the organism you are treating. Can also use tetracycline. ...Read more

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Will penicillin vk work for bacterial vaginois?

Will penicillin vk work for bacterial vaginois?

No: No. Penicillin VK will not work for bacterial vaginosis. The antibiotics that are used to treat this infection are metronidazole and clindamycin. ...Read more

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Does penicillin inhibit e. Coli bacterial growth?

Most do.: Although there are e. Coli that are resistant to all penicillin-type antimicrobials, these exist mostly in hospitals. Without the antimicrobial pressure in the health care setting, most e. Coli are quite sensitive to most penicillins even ampicillin. Even though penicillin itself is not very useful for e. Coli, really high doses in the "old days" worked. ...Read more

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Got bacterial tonsillitis + have been given penicillinV, I haven't collected penicillin + has started to feel better should I still get the penicillin?

Got bacterial tonsillitis + have been given penicillinV, I haven't collected penicillin + has started to feel better should I still get the penicillin?

Bacterial tonsilliti: A documented bacterial tonsillitis should be treated with antibiotics to eradicate the infection. While you feel better, I recommend revisiting your physician to establish that the tonsillitis spontaneously improved. ...Read more

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I've been told I have bacterial tonsillitis, allergic to penicillin, been on clarithromycin for 7 days, still not gone What should I do?

I've been told I have bacterial tonsillitis, allergic to penicillin, been on clarithromycin for 7 days, still not gone What should I do?

Tonsillitis: clarithromycin should take care of streptococcal pharyngitis (tonsillitis), which is the most common cause for that infection, however, other organisms can also infect the tonsils, viral, fungal or other bacteria. You need to see your doctor again for re-evaluation, probablyyou will need to see an ENT specialist, after ruling out other causes as infectious mononucleosis, best wishes ...Read more

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Is doxycline strong enought to kill gonorrhea virus I'm allergic to penicillin?

Is doxycline strong enought to kill gonorrhea virus I'm allergic to penicillin?

Not reliable: Many gonorrhea bacteria are resistant to the tetracycline antibiotics, including doxycycline; it is never recommended as the sole treatment for gonorrhea. Recommended treatment is an injection of ceftriaxone (Rocephin), which is entirely safe in almost everyone with penicillin allergy, plus either azithromycin or doxycycline by mouth. But never doxycycline alone. ...Read more

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6 weeks agao I had bacterial sinusitis and left swollen tonsil I was given penicillin and the swelling went away however the lump behind the tonsil flap still remains-normal in colour. Causes?

6 weeks agao I had bacterial sinusitis and left swollen tonsil I was given penicillin and the swelling went away however the lump behind the tonsil flap still remains-normal in colour. Causes?

Please clarify: Not sure hat you are asking. But if your symptoms are resolved, and there is still a small lump behind the tonsil, then keep your followup visits with your doctor who can monitor you. If that lump is an abcess, that would be a problem that your doctor can identify and treat. ...Read more

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1.5 yr old has chronic bacterial bronch. Cultures nontypeable h-flu resistant to penicillin. Allergic to sulpha. Omnicef (cefdinir) isn't working. Other options?

A little time: Atbcs take a few days to provide noticeable clearing of symptoms. When the lab tests the mucus, the labs tests what atbc the bacteria is susceptible to. Likely your physician saw the susceptibility report and rx Omnicef (cefdinir) based on that report. Perhaps give the treatment a few more days. ...Read more

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Taking 500mg Penicillin VK 2x/day for ten days for strep throat. Is this usual dosage? Is this enough/ok timing to kill it for sure?

Taking 500mg Penicillin VK 2x/day for ten days for strep throat. Is this usual dosage? Is this enough/ok timing to kill it for sure?

Probably: You should because the usual dose is 500 miligrams 2 to 3 times a day for 10 days. You're in that arena and I think you will be fine ...Read more

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I want to know if Levaquin treats strep throat or bacterial pharyngitis since I'm allergic to penicillin and resistant to biaxin (clarithromycin)? .

I want to know if Levaquin treats strep throat or bacterial pharyngitis since I'm allergic to penicillin and resistant to biaxin (clarithromycin)? .

Not a good choice: Levaquin is a broad spectrum antibiotic and usually preferred for more serious infections. Strep throat is usually still amenable to most first generation antibiotics. Being allergic to penicillin suggests u shd try a cephalosporin which shd help. Resistant to Biaxin (clarithromycin) is unlikely and erythromycins may still work. Relatively safer medications like clindamycin also exist. ...Read more

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I was prescribed penicillin for bacterial sinusitis. Can penicillin v cause orange-reddish urine? 2 months ago I had kidney stones could it be related? - so far I have no other symptoms i.e flank pain

I was prescribed penicillin for bacterial sinusitis. Can penicillin v cause orange-reddish urine? 2 months ago I had kidney stones could it be related? - so far I have no other symptoms i.e flank pain

? hematuria: Sounds more like the Kidney stone issue or some Urogenital tract issue that is most likely causing blood in the urine that you are seeing. Doubt it has anything to do with the Penicillin. See the Dr. To get the hematuria assessed. Best wishes. ...Read more

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31 year-old woman with a 3-year history of intermittent leukocytosis and several cases of bacterial infections, who is still looking for definit.....?

31 year-old woman with a 3-year history of intermittent leukocytosis and several cases of bacterial infections, who is still looking for definit.....?

Immunity problems: Some immune deficiencies and autoimmune disorders don't fit well with named syndromes. Perhaps there is a name for yours, but not necessarily. I agree with the others' advice: Dr. Mahmood re possible IgG deficiency, Dr. Chu about WBC function, and Dr. Legha's comments about doctor shopping. Get an infectious diseases as well as allergy/immunology consultation. Good luck! ...Read more

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Not allergic to penicillin. Do I have to take clindamycin as prescribed after root canal coronal leakage. Concerned about intestinal problems c- diffi?

Not allergic to penicillin. Do I have to take clindamycin as prescribed after root canal coronal leakage. Concerned about intestinal problems c- diffi?

Talk to your dentist: It is not appropriate to advise you to change antibiotics here. Share your concerns with the dentist that prescribed. Btw, unless you have had c diff previously, the chance of it occurring are slim. ...Read more

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I was given two shots of penicillin this morning and now I am haven't very frequent bowel movements. Is this normal?

I was given two shots of penicillin this morning and now I am haven't very frequent bowel movements. Is this normal?

Antibiotics: Although antibiotics can eventually cause diarrhea, they would not have that effect within the same day of receiving them. There must be another cause of your frequent stools. Perhaps it is related to whatever reason you actually received the antibiotics in the first place. If the problem persists, contact your doctor. Good luck. ...Read more

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What's the best food to eat after taking penicilin for two weeks to put some good bacteria back in the gut?

Yogurt, probiotic: The good bacteria should multiply on their own but you can eat yogurt (natural, real yogurt; preferably organic) and/or a pill or two of probiotics. ...Read more

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Is mouthwash good for killing bacteria?

Is mouthwash good for killing bacteria?

Yes: A mouthwash like listerine will kill bacteria in our mouths due to its acolhol content. You should follow rinsing with flossing and then brushing with a toothpast with flouride to clean your teeth. ...Read more

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Does a zpak kill bacteria just as good as levaquin (levofloxacin)?

It depends: Zpak is a brand of Azithromycin which is a cousin of erythromycin, both members of macrolide class. Levaquin (levofloxacin) is a brand of Levofloxacin which is a quinolone & cousin of Ciprofloxacin (cipro). Both are good against some but have different effectiveness w/other bacteria due to different mechanisms of action. For upper respiratory infections like pneumonia, they should both be fine. But c&s is ideal. ...Read more

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How is good bacteria overgrowth in the intestines distinguished from bad bacteria overgrowth? Should I see a gastro for my suspicions?

How is good bacteria overgrowth in the intestines distinguished from bad bacteria overgrowth? Should I see a gastro for my suspicions?

Multiple ways: There are multiple ways this is determined. While not commonly done, a quantitative aspiration of bacteria from the small intestine can be done. But hydrogen or methane breath test and D-xylose testing can be also done. Also very common is seeing a patient's response to an empiric (trial) course of antibiotics; if one improves with antibiotics that it suggests overgrowth. ...Read more

Bacteria (Definition)

Are omnipresent single celled organisms which are the both the simplest form of life and the original form of life on earth. The are ...Read more


Bowel (Definition)

The bowel is the intestinal tract in the body. The small intestine ...Read more