Skip to content
    Drugs & Medications

    Vitamin B-2

    GENERIC NAME(S): riboflavin (vitamin B2)

    Find Lowest Prices

    Uses

    Riboflavin (vitamin B2) is used to prevent or treat low levels of vitamin B2 in people who do not get enough of the vitamin from their diet. Most people who eat a normal diet do not need extra vitamin B2. However, some conditions (such as stomach/intestinal problems, prolonged infection, liver disease, alcoholism, cancer) can cause low levels of vitamin B2. Vitamin B2 plays an important role in the body. It is needed to keep your skin, eyes, nerves, and red blood cells healthy.

    How to use Vitamin B-2

    Take this vitamin by mouth. Read and follow all directions on the product package before taking this vitamin. If you have any questions, ask your pharmacist. If your doctor has prescribed this vitamin, take it as directed.

    The dosage is based on your medical condition and response to treatment. Take this vitamin regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.

    If your condition lasts or gets worse, or if you think you may have a serious medical problem, get medical help right away.

    Side Effects

    This vitamin may cause your urine to turn bright yellow. This effect is harmless and will disappear when the vitamin is stopped.

    If your doctor has directed you to use this medication, remember that 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.

    A very serious allergic reaction to this vitamin is rare. However, get medical help right away 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

    Before taking riboflavin, tell your doctor or pharmacist if you are allergic to it; 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 vitamin, tell your doctor or pharmacist your medical history.

    Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

    Tell your doctor if you are pregnant before using this vitamin. Riboflavin is safe to take during pregnancy when used as directed at recommended doses.

    Riboflavin passes into breast milk and is considered to be safe during breast-feeding when used as directed at recommended doses. Consult your doctor before breast-feeding.

    Interactions

    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.

    This vitamin may interfere with certain lab tests, possibly causing false test results. Make sure lab personnel and all your doctors know you use this vitamin.

    Overdose

    If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center 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.

    Notes

    Keep all regular medical and lab appointments.

    This product is not a substitute for a proper diet. It is best to get your vitamins from healthy foods. Riboflavin can be found in milk, bread, fortified cereals, meat, green vegetables, and other foods. Consult your doctor, pharmacist, or nutritionist for more details.

    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 themissed dose. Take your next dose at the regular time. Do not double the dose to catch up.

    Storage

    Check the product package for instructions on how to store this vitamin, or ask your pharmacist. Keep all medications 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. Consult your pharmacist or local waste disposal company.Information last revised August 2016. Copyright(c) 2016 First Databank, Inc.

    Images

    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet
    View Larger Picture
    color
    orange
    shape
    round
    imprint
    No data.
    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet
    View Larger Picture
    color
    yellow
    shape
    round
    imprint
    No data.
    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet
    View Larger Picture
    color
    yellow
    shape
    round
    imprint
    No data.
    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet

    Identification

    color
    orange
    shape
    round
    imprint
    No data.
    This medicine is a orange, round, scored, tablet
    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet

    Identification

    color
    yellow
    shape
    round
    imprint
    No data.
    This medicine is a yellow, round, tablet
    Vitamin B-2 100 mg tablet
    Vitamin B-2 100 mg tablet

    Identification

    color
    yellow
    shape
    round
    imprint
    No data.
    This medicine is a yellow, round, tablet

    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 Privacy Certification TAG seal HONcode Seal AdChoices