Flagyl Oral : Uses, Side Effects, Interactions


GENERIC NAME(S): Metronidazole


Metronidazole, marketed under the brand name Flagyl among others. Flagyl is an antibiotic used to treat different types of infections. It works by stopping the development of certain bacteria and parasites.

This antibiotic only treats certain bacteria and parasitic infections. It will not work for viral infection (such as common cold, flu). It is not necessary to use any antibiotic when it does not work for future transition.

Flagyl can also be used with other medicines for treatment of some stomach / intestinal ulcers due to a bacteria (H. pylori).

How to use Flagyl

Take Flagyl or Metronidazole guided by your doctor. To prevent stomach disturbance, take this medicine with a full glass of food or water or milk. Dosage is based on your medical condition and treatment response.

For the best effect, take this antibiotic evenly to the distance. To help you remember, take this medicine at the same time every day.

Continue to take this medication until the full amount of the quantity ends, even after the symptoms disappear after a few days. The infection can come back very quickly by closing the medication.

Tell your doctor if your condition is bad or bad.

Side Effects

Dizziness, headache, stomach upset, nausea, vomiting, loss of appetite, diarrhea, constipation, or the taste of the metal in your mouth. If any of these effects gets worse or worse, then tell your doctor or pharmacist immediately.

Flagyl or Metronidazole can turn your urine into a dark color. This effect is harmless and the drug will disappear when it is closed.

Remember that your doctor has prescribed this drug because he or she has decided that the benefit is higher than the risk of side effects. Many people using this drug do not have serious side effects.

Tell your doctor immediately if you have any serious side effects, including: Symptoms of a new infection (such as sore throat that doesn’t go away, fever), easy wounds / bleeding, stomach / stomach ache, painful urination.

If you have a very serious side effect, get medical help, including: instability, seizures, changes in mental / mood (such as confusion), difficulty speaking, numbness / rump of hands / leg, eye pain, Sudden vision changes, headache is severe or does not go away, harsh / painful neck.

Using this drug for prolonged or frequent periods can lead to oral thrush or yeast infection. If you see white spots, changes in vaginal discharge or other new symptoms in your mouth, contact your doctor.

A very serious allergic reaction to this drug is rare. However, if you see symptoms of a serious allergic reaction, get medical help immediately, including: granular, itching / swelling (especially the face / tongue / throat), severe dizziness, trouble breathing.

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

In America – Call your doctor for medical advice about side effects. You can notify the FDA of side effects on 1-800-FDA-1088 or www.fda.gov/medwatch.

In Canada – Call your doctor for medical advice about side effects. You can report the health effects of Canada on 1-866-234-2345.


Before taking Flagyl or Metronidazole, tell your doctor or pharmacist whether you are allergic to it; Or other antibiotics (such as tinidazole); Or if you have any other allergens. This product can have passive elements, which can cause allergic or other problems. Talk to your pharmacist for more details.

Before using this drug, tell your doctor or pharmacist your medical history, especially: liver disease, kidney disease, some blood disorders (low blood cell count).

People with a rare genetic disorder (Cocaine Syndrome) may be at risk for severe liver disease if they use Flagyl. Discuss the risks and benefits with your doctor. If Flagyl is used, then your doctor will check your liver function. Get medical help immediately after any symptoms of liver disease (such as nausea / vomiting which does not stop, loss of appetite, severe stomach / stomach ache, yellowing / skin, black urination) during treatment.

Avoid alcoholic beverages and products containing propylene glycol for at least 3 days after taking this medicine and eliminating this medication as there may be severe irritation / cramps, nausea, vomiting, headache and flushing in the stomach.

This medication can make you dizzy. Alcohol or marijuana can make you feel more dizzy. Unless you can safely do it, do not drive, use machinery, or do anything that requires caution. If you are using marijuana, talk to your doctor.

Flagyl can not work because of live bacterial vaccines (like typhoid vaccine). Do not vaccinate / vaccinate while using this drug unless your doctor tells you.

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

During pregnancy, this drug should be used only when it is clearly necessary. Discuss the risks and benefits with your doctor.

Flagyl passes into breast milk. Discuss the risks and benefits with your doctor before breastfeeding. If you are prescribed a single-dose treatment, then your doctor may direct you to breastfeeding for a short time after dose. Consult your doctor for more details.


See also the Precautions section.

Drug interactions can change how your medicines 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 prescriptions / non-prescription medicines and herbal products) and share it with your doctor and pharmacist. Do not start, stop or change any drug supplements without the approval of your doctor.

Some products that interact with this drug include: products containing alcohol (such as cough and cold syrup, aftershave), product containing propylene glycol, lopinavir/ritonavir solution, lithium.

If you are also taking disulfiram or if you have disliked in the last 2 weeks, do not take Flagyl.

Although most antibiotics are unlikely to affect hormonal birth control, such as pills, patches, or rings, some antibiotics (such as rifampin, rifabutin) can reduce their effectiveness. This can lead to pregnancy. If you use hormonal birth control, ask your doctor or pharmacist for more information.

Flagyl can interfere with some laboratory tests, possibly due to false test results. Make sure lab workers and all your doctors know that you use this medicine.

Over Dose

If someone is treated and has serious symptoms like having trouble going out or breathing, call 911. Otherwise, call the Poison Control Center immediately. US residents can call their local venom control center at 1-800-222-1222. Canadians can call a provincial poison control center. Symptoms of overdose may include: nausea, vomiting, instability.


Do not share this medication with others.

If you are being treated for a certain infection (trichomoniasis), then all sexual partners may need to be treated to prevent infection again. During treatment, avoid sexual intercourse, or always use latex or polyurethane condoms.

This drug is prescribed for your current condition only. Do not use it later for any other infection until your doctor tells you.

If you are taking this medicine for a long time, then while taking this medicine, a lab test (such as a blood cell count) can be done. Keep all medical and lab appointments. Consult your doctor for more details.

Missed Dose

If you miss a dose, then as soon as you remember, take it. If it is near the next dose time, then leave the thesis dose. Take your next dose at regular times. Do not double the dose to catch up.


Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Until instructed not to do so, do not flush the medicines in the toilet and do not drain in the drain. When this period expires or does not need it, then properly release this product. Consult your pharmacist or local waste disposal company.

Disclaimer: DrLinex has made every effort to ensure that all information is factually accurate, comprehensive and up-to-date. However, this article should not be used as a licensed health care professional’s choice of knowledge and expertise. You should always consult your doctor or other health care professional before taking any medication. The information given here is subject to change and it has not been used to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions or adverse effects. The lack of warning or other information for any drug does not indicate that the combination of medicine or medication is safe, effective or appropriate for all patients or all specific uses.

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