Skip to content
    Drugs & Medications

    bismuth subcit K-metronidazole-tetracycline

    COMMON BRAND NAME(S): Pylera

    GENERIC NAME(S): COLLOIDAL BISMUTH SUBCITRATE/METRONIDAZOLE/TETRACYCLINE HCL

    Uses

    This combination medication is used with an acid blocker (e.g., a proton pump inhibitor such as omeprazole). It is used to treat stomach/intestinal ulcers caused by the bacteria H. pylori and to prevent the ulcers from returning.

    Each capsule contains 3 medications: bismuth subcitrate, metronidazole, and tetracycline. Bismuth subcitrate is often used to treat upset stomach, but it is used in this combination to help stop the growth of bacteria. Metronidazole and tetracycline are antibiotics used to treat a wide variety of bacterial infections. They work by stopping the growth of bacteria.

    This product treats only bacterial infections. It will not work for viral infections (e.g., common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.

    This product is not recommended for use in children.

    How to use bismuth subcit K-metronidazole-tetracycline

    Take this medication by mouth 4 times daily (after meals and at bedtime) for 10 days. Take each dose (3 capsules) with a full glass of water (8 ounces or 240 milliliters) unless your doctor directs you otherwise. Swallow the capsules whole. Do not crush or chew the capsules. Do not lie down for 10 minutes after taking this medication.

    Follow your doctor's instructions on how to correctly take an acid blocker with this medication.

    Take this medication 2 to 3 hours before or after taking any products containing magnesium, aluminum, or calcium. These products bind with tetracycline, preventing its full absorption. Some examples include quinapril, certain forms of didanosine (e.g., chewable/dispersible buffered tablets or pediatric oral solution), vitamins/minerals, and antacids. Dairy products (e.g., milk, yogurt), calcium-enriched juice, sucralfate, iron, and zinc are also included.

    Take this medication regularly in order to get the most benefit from it. Continue to take this medication and the acid blocker until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection/ulcer.

    Tell your doctor if your condition persists or worsens.

    Side Effects

    Nausea, diarrhea, upset stomach, abdominal pain, changes in taste, headache, or dizziness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

    Your tongue may turn dark in color while you are taking this medication. This is harmless, and the effect will disappear when you stop the medication.

    Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

    Tell your doctor right away if any of these unlikely but serious side effects occur: numbness/tingling of arms/legs, discolored teeth, mental/mood changes (such as confusion, anxiety, irritability, depression), difficult/painful swallowing, heartburn, fast/pounding heartbeat, ringing in the ears, frequent/painful urination.

    Tell your doctor right away if any of these rare but very serious side effects occur: severe headache, stiff/painful neck, signs of kidney problems (such as change in the amount of urine), signs of infection (e.g., fever, persistent sore throat), easy bruising/bleeding, dark urine, yellowing eyes/skin, persistent nausea/vomiting, severe stomach/abdominal pain, unusual weakness/tiredness, seizures, chest pain.

    This product commonly causes dark stools that are usually not serious. However, you may not be able to tell this effect apart from blood in the stool, which could be a sign of a serious condition. Therefore, tell your doctor right away if you have dark stools.

    Tetracycline may rarely cause a serious increase in pressure inside the skull (intracranial hypertension-IH). The risk of this side effect is greater for women of childbearing age who are overweight or who have had IH in the past. If IH develops, it usually goes away after tetracycline is stopped; however, there is a chance of permanent vision loss or blindness. Get medical help right away if you have: persistent/severe headache, vision changes (such as blurred/double vision, decreased vision, sudden blindness), persistent nausea/vomiting.

    This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have any of the following symptoms because these products may make them worse. Tell your doctor right away if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool.

    Use of this medication for prolonged or repeated periods may result in oral thrush or a new yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.

    A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

    This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

    In the US -

    Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

    In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

    Precautions

    See also Side Effects section.

    Before taking this product, tell your doctor or pharmacist if you are allergic to bismuth subcitrate, metronidazole, or tetracycline; or to tinidazole; or to other tetracyclines (e.g., doxycycline); or to other bismuth products (e.g., bismuth subsalicylate); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

    Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease, blood disorders, brain/spinal cord disorders (e.g., seizures), trouble swallowing, esophagus problems (e.g., hiatal hernia, reflux disease-GERD).

    Before having surgery, tell your doctor or dentist that you are using this product.

    Tetracycline may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.

    Avoid alcoholic beverages and products containing propylene glycol while taking this product and for at least 3 days after finishing this product because severe stomach upset/cramps, nausea, vomiting, headache, and flushing may occur.

    This product may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely.

    Children should not take this product because it contains tetracycline. Tetracycline may cause permanent tooth discoloration and other problems in children younger than 8 years. Tooth discoloration has also occurred in older children and young adults. Consult the doctor for more information.

    This product is not recommended for use during pregnancy. It may harm an unborn baby. Consult your doctor for more details.

    This combination product contains drugs that may pass into breast milk and could have undesirable effects on a nursing infant. Therefore, breast-feeding is not recommended while using this drug. Consult your doctor before breast-feeding.

    Interactions

    See also Precautions section.

    Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

    Some products that may interact with this drug include: retinoid medications (such as acitretin, isotretinoin, tretinoin), strontium, alcohol-containing products (such as cough and cold syrups, aftershave), products containing propylene glycol, atovaquone, "blood thinners" (e.g., warfarin, heparin), busulfan, digoxin, lithium, live bacterial vaccines (e.g., typhoid vaccine), lopinavir/ritonavir solution.

    Do not take this product if you are also taking disulfiram or if you have taken disulfiram within the last 2 weeks.

    Although most antibiotics (including metronidazole and tetracycline) are unlikely to affect hormonal birth control such as pills, patch, or ring, a few antibiotics (such as rifampin, rifabutin) can decrease their effectiveness. This could result in pregnancy. If you use hormonal birth control, ask your doctor or pharmacist for more details.

    This product may interfere with certain lab tests, possibly causing false test results. This product may also interfere with X-ray exams of the stomach/intestines. Make sure lab personnel and all your doctors know you use this drug.

    Overdose

    If overdose is suspected, contact a poison control center or emergency room right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: seizures.

    Notes

    Do not share this medication with others.

    Laboratory and/or medical tests may be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

    This medication has been prescribed for your current condition only. Do not use it later for another infection unless told to do so by your doctor. A different medication may be necessary in that case.

    Missed Dose

    If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up. Contact your doctor if you miss more than 4 doses.

    Storage

    Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets.

    Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Taking outdated tetracycline can result in serious illness. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

    Information last revised April 2016. Copyright(c) 2016 First Databank, Inc.

    Images

    PYLERA CAPSULE
    PYLERA CAPSULE
    View Larger Picture
    color
    No data.
    shape
    No data.
    imprint
    No data.
    PYLERA CAPSULE
    PYLERA CAPSULE

    Identification

    color
    No data.
    shape
    No data.
    imprint
    No data.
    This medicine is a white, oblong capsule imprinted with "logo" and "B M T".

    Add to Cabinet

    Add Adderall to my medicine cabinet.

    Did you know?

    With WebMD's Medicine Cabinet, you can check interactions with drugs.

    Go to medicine cabinet

    Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

    CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

    More about Drugs and Medications

    Newsletters

    Subscribe to free WebMD newsletters.

    • WebMD Daily

      WebMD Daily

      Subscribe to the WebMD Daily, and you'll get today's top health news and trending topics, and the latest and best information from WebMD.

    • Men's Health

      Men's Health

      Subscribe to the Men's Health newsletter for the latest on disease prevention, fitness, sex, nutrition, and more from WebMD.

    • Women's Health

      Women's Health

      Subscribe to the Women's Health newsletter for the latest on disease prevention, fitness, sex, diet, anti-aging, and more from WebMD.

    By clicking Submit, I agree to the WebMD Terms & Conditions & Privacy Policy and understand that I may opt out of WebMD subscriptions at any time.

    URAC: Accredited Health Web Site TRUSTe online privacy certification HONcode Seal AdChoices