
What do you need to know about Flagyl?
- A headache, nausea, diarrhea, flushing, an unpleasant metallic taste, peripheral neuropathy (nerve damage to fingers and toes), or a rash are common side effects. ...
- Cases of encephalopathy and peripheral neuropathy have been reported with metronidazole.
- Do not crush, break, or chew extended-release Flagyl tablets. ...
What are the side effects of Flagyl?
You may have unpleasant side effects such as fast heartbeats, warmth or redness under your skin, tingly feeling, nausea, and vomiting. Thereof, how do you deal with the side effects of Flagyl? Do not drink alcohol or consume food or medicines that contain propylene glycol while you are taking Flagyl.
Is there anything to relieve nausea from Flagyl?
is there anything to relieve nausea from flagyl? zofran (ondansetron) doesn't seem to be helping. Nausea from meds: Controlling nausea can sometimes be a challenge. This side effect is very well known from flagyl. Upping the dose of the zofran may help, or your doc ...
Is doxycycline the same as Flagyl?
Vibramycin (doxycycline) is safe for people age 65 or older and those who have kidney problems. Flagyl (metronidazole) is good at killing a variety of bacteria. Unlike many other antibiotics, Flagyl (metronidazole) is less likely to make bacteria resistant to it.

What does a Flagyl rash look like?
You develop skin rashes including Stevens-Johnson syndrome or toxic epidermal necrolysis. These can appear as reddish target-like spots or circular patches often with central blisters on the trunk, skin peeling, ulcers of the mouth, throat, nose, genitals and eyes and can be preceded by fever and flu-like symptoms.
Can metronidazole cause skin irritation?
Skin reactions, including contact dermatitis, may occur while using this medicine. Check with your doctor right away if you have blistering, burning, crusting, dryness, or flaking of the skin or itching, scaling, severe redness, soreness, or swelling of the skin. This medicine may cause eye irritations.
What are the most common side effects of Flagyl?
Dizziness, headache, stomach upset, nausea, vomiting, loss of appetite, diarrhea, constipation, or metallic taste in your mouth may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. This medication may cause your urine to turn darker in color.
Can you be allergic to Flagyl?
Severe allergic reaction: If you're allergic to metronidazole, you may have symptoms such as: trouble breathing. swelling of your tongue or throat.
How long will side effects from Flagyl last?
How long do Metronidazole side effects last? Most Metronidazole side effects shouldn't last that long. Usually, they will start from relatively soon after you take a tablet, and should be over in between 30 minutes to several hours (or potentially longer), depending on the type of side effect you experience.
How long does it take for Flagyl to get out of your system?
Flagyl may be cleared from your body within 48 hours, but the elimination rate varies depending on a person's age and metabolism, among other factors. The Flagyl manufacturer recommends waiting at least one day after the last dose of Flagyl before drinking alcohol.
Does Flagyl cause itching?
unpleasant metallic taste; rash, itching; vaginal itching or discharge, pain during sex; mouth sores; or.
What should be avoided when taking Flagyl?
Do not take metronidazole if you have taken disulfiram (Antabuse®) within the last 2 weeks. Using these medicines together may cause serious unwanted effects. Drinking alcoholic beverages while using this medicine may cause stomach pain, nausea, vomiting, headache, or flushing or redness of the face.
Is Flagyl a strong antibiotic?
It's a potent drug in the nitroimidazole class used to treat bacterial infections of the: stomach and intestine. skin.
Can you get a rash after antibiotics?
Antibiotic allergic reactions Around 1 in 15 people have an allergic reaction to antibiotics, especially penicillin and cephalosporins. In most cases, the allergic reaction is mild to moderate and can take the form of: a raised, itchy skin rash (urticaria, or hives)
How common is allergy to metronidazole?
True allergy to metronidazole, a common anti-infective in clinical practice, is rarely reported in the literature.
Should I stop taking metronidazole If I have side effects?
If diarrhea or severe vomiting occurs, a healthcare provider may switch a person to a different medication. Some severe side effects may require a person to discontinue treatment with metronidazole. Allergic reactions with metronidazole are rare, but still possible.
How do I know if metronidazole is working?
by Drugs.com Metronidazole starts to work 1 to 2 hours after you take it, because it is quickly absorbed, and it reaches its maximum concentration after 20 minutes to 3 hours. But it may take a couple of days before you start to feel better or notice an improvement in your symptoms.
What should be avoided when taking in metronidazole?
Do not take metronidazole if you have taken disulfiram (Antabuse®) within the last 2 weeks. Using these medicines together may cause serious unwanted effects. Drinking alcoholic beverages while using this medicine may cause stomach pain, nausea, vomiting, headache, or flushing or redness of the face.
Why do you have to use metronidazole at bedtime?
Metronidazole vaginal gel is used to treat bacterial vaginosis. Use one applicatorful at bedtime. A usual course of treatment lasts for five nights....What is metronidazole vaginal gel used for?Type of medicineAn antibacterial gelUsed forTreatment of bacterial vaginosisAlso calledZidoval®1 more row•May 20, 2020
What are the side effects of metronidazole cream?
Stinging, burning, skin irritation, dryness, redness, metallic taste, nausea, or headache may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
What is Flagyl?
Flagyl has active ingredients of metronidazole. It is often used in vaginitis bacterial. eHealthMe is studying from 22,842 Flagyl users for its effectiveness, alternative drugs and more.
What is Rashes?
Rashes (redness) is found to be associated with 4,626 drugs and 5,400 conditions by eHealthMe.
Can flagyl cause rash?
Rashes is found among people who take Flagyl, especially for people who are female, 60+ old, have been taking the drug for < 1 month.
What is Flagyl used for?
It's used to treat ominous sounding organisms such as Bacteriodes fragilis, Helicobacter pylori, and Giardia lamblia. Flagyl is an important drug in the world of medicine, but it's linked with many difficult side effects.
How long does Flagyl stay in your system?
It's often prescribed to be taken by mouth two or three times a day for 7 to 14 days; it depends upon the type of infection you have.
Why does metronidazole change color?
But never fear, this pigment change is due to a metabolite of metronidazole that occurs when it's broken down in your body for elimination through your kidneys, so it's nothing to be concerned about.
Why does antibiotic diarrhea cause diarrhea?
This happens because the population of "good" bacteria (normal microflora) in your intestine are altered due to your antibiotic. Symptoms can range from soft stools to frequent and explosive watery diarrhea.
How to get rid of diarrhea after antibiotics?
Be sure to stay hydrated, replace electrolytes, and eat a bland diet like bananas, rice, applesauce, and toast (BRAT diet) to help recover from a bout of diarrhea. Antibiotic-associated diarrhea, while unpleasant, is usually a short-lived side effect and will usually clear up a few days after antibiotics are stopped.
What are the side effects of propylene glycol?
What are the effects if you don't follow this rule? Unpleasant side effects can occur, such as: a fast heartbeat. warmth or redness (flushing) under your skin. a tingly feeling. nausea and vomiting reportedly may occur.
Can metronidazole cause a recurring infection?
Be sure to take metronidazole for the full course of antibiotic treatment that your doctor prescribes. The side effects may be somewhat difficult, but a recurring infection if you stop therapy can be serious.
What are the side effects of Flagyl?
Common side effects of Flagyl, Flagyl ER, and Flagyl Injection include: a metallic taste in the mouth or changes in taste. Uncomfortable side effects that may become serious are: seizures. Serious but unlikely side effects of Flagyl include: painful urination.
What is the strength of Flagyl?
Flagyl is supplied in 250 and 500 mg strength tablets, Flagyl ER is available in 750 mg strength tablets, and Flagyl Injection in 500 mg strength in a buffered 100 ml vial. Dosage is quite variable and dependent upon the severity of disease and other considerations made by the treating physician. Most of the serious side effects may occur with any of these three preparations of Flagyl. Flagyl may cause liver enzyme levels to increase; lithium and creatinine levels should be checked to avoid lithium toxicity or renal compromise.
Does metronidazole prolong QT?
Cardiovascular: QT prolongation has been reported, particularly when metronidazole was administered with drugs with the potential for prolonging the QT interval. Flattening of the T-wave may be seen in electrocardiographic tracings.
Does flagyl cause liver problems?
Most of the serious side effects may occur with any of these three preparations of Flagyl. Flagyl may cause liver enzyme levels to increase ; lithium and creatinine levels should be checked to avoid lithium toxicity or renal compromise.
Can you take flagyl with alcohol?
Alcohol may increase the side effects of Flagyl. Patients on disulfiram should not take Flagyl until they have had a two week interval without taking disulfiram, especially alcoholic patients, to avoid psychotic reactions.
Can metronidazole cause liver problems?
Metronidazole can cause life-threatening liver problems in people with Cockayne syndrome. If you have this condition, stop taking metronidazole and contact your doctor if you have signs of liver failure --nausea, stomach pain (upper right side), dark urine, clay-colored stools, or jaundice (yellowing of the skin or eyes).
Can you use flagyl while pregnant?
Treatment in pregnant women (during first 3 months is not advised) or women who are breastfeeding should only be done if the benefits outweigh the potential problems. Flagyl passes into breast milk and may harm a nursing baby. Consult your doctor before breastfeeding. Except for use in amebiasis, studies in pediatric patients are not available; Flagyl ER has no pediatric studies.
What other drugs will affect Flagyl?
Sometimes it is not safe to use certain medicines at the same time. Some drugs can affect your blood levels of other drugs you use, which may increase side effects or make the medicines less effective.
What is Flagyl?
Flagyl ( metronidazole) is an antibiotic that is used to treat bacterial infections of the vagina, stomach, liver, skin, joints , brain and spinal cord, lungs, heart, or bloodstream.
What should I avoid while using Flagyl?
While taking Flagyl and for 3 days after your last dose: Do not drink alcohol or consume foods, medicines, or other products that contain alcohol or propylene glycol. You may have unpleasant effects such as headaches, nausea, vomiting, stomach cramps, and warmth or tingling under your skin.
How long after stopping Flagyl can you drink alcohol?
Do not drink alcohol or consume foods or medicines that contain propylene glycol while you are taking Flagyl and for at least 3 days after you stop taking it.
How long does Flagyl last?
Flagyl is usually given for up to 10 days in a row.
What is metronidazole cancer?
a nerve disorder. In animal studies, metronidazole caused certain types of tumors, some of which were cancerous.
Can you take flagyl by mouth?
Flagyl injection is given as an infusion into a vein. A healthcare provider will give you this injection if you are unable to take the medicine by mouth.
What is the name of the skin disorder with blistering and peeling skin?
a skin disorder with blistering and peeling skin called toxic epidermal necrolysis. a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome. erythema or redness of skin or mucous membrane. hives. seizures.
Are you currently using Flagyl?
This survey is being conducted by the WebMD marketing sciences department.
What is flagyl used for?
Metronidazole is an antibiotic that may be used in the treatment of anaerobic infections caused by susceptible bacteria or parasites. Anaerobic means "living without air".
What class is Flagyl?
Flagyl belongs to the class of antibiotics known as nitroimidazoles.
How long does Flagyl last?
For other types of infections, it may need to be taken for seven to ten days, or even longer. Do not use Flagyl to treat infections other than the one you have been prescribed for. Flagyl has no activity against viruses (such as those that cause a cold or flu).
How long after stopping Flagyl can you drink alcohol?
Flagyl is an antibiotic that is particularly effective at treating infections caused by susceptible anaerobic bacteria and parasites. Avoid alcohol while taking Flagyl and for three days after stopping it.
How does metronidazole affect DNA?
Once absorbed, metronidazole diffuses into susceptible organisms, where it becomes active and detrimentally affects DNA synthesis and degradation in the organism, causing cell death. However, the exact way metronidazole works is unknown.
Can you take Flagyl over the counter?
Talk to your doctor or pharmacist before taking any other medication, including that bought over-the-counter, because it may not be compatible with Flagyl. Do not take Flagyl if you have taken disulfiram (Antabuse) within the past two weeks.
Can you give flagyl to a pregnant woman?
Flagyl should not be given to women during the first trimester of pregnancy. Weigh up risks versus benefits of giving Flagyl during other trimesters.
Why is flagyl not used in pregnancy?
Flagyl and Flagyl ER should not be used in early pregnancy because of potential adverse effects on the fetus. Flagyl and Flagyl ER are excreted in breast milk. Because of potential adverse effects on the newborn, females who are nursing should not use metronidazole.
What is flagyl used for?
Flagyl, generic name metronidazole, is an antibiotic prescribed for the treatment of parasites and anaerobic bacteria. Review side effects, dosage, drug interactions, and pregnancy and breastfeeding safety information prior to using these antibiotics.
What is Flagyl (metronidazole), and what is it used for?
Flagyl and Flagyl Extended Release ( metronidazole) is an antibiotic used to treat bacterial and parasitic infections including
What drugs interact with Flagyl (metronidazole)?
Psychotic reactions have been reported in alcoholic patients who are using metronidazole and disulfiram concurrently. Metronidazole should not be given to patients who have taken disulfiram within the last two weeks.
What are the side effects of metronidazole?
The most serious adverse reactions reported in patients treated with metronidazole have been convulsive seizures, encephalopathy, aseptic meningitis, optic and peripheral neuropathy, the latter characterized mainly by numbness or paresthesia of an extremity.
Is flagyl a good antibiotic?
Flagyl is a useful antibiotic and is generally well tolerated with appropriate use.
Does Flagyl cause prickling?
vaginal dryness. Serious side effects of Flagyl and Flagyl ER include brain disease, fevers, mouth sores, painful urination, nerve damage resulting in prickling or tingling sensations that may become permanent, cystitis, pelvic pain or pressure, decreased sex drive, inflammation of the lining of the rectum, inflammation of the mouth and lips, ...
Why does flagyl make my skin itch?
If you can't see the itch and maybe it feels like things are crawling under your skin, that is probably nerve involvement. Flagyl is a cyst buster. The bacteria build the cysts they hide in out of anything that is available. That can be, for example, your nerve sheath material. When the Flagyl starts to bust open the cysts, your body registers the nerve sheath material as part of the "the enemy". So your immune system will attack nerve sheath material in general and you get the itchy heeby jeebies.
Does Flagyl cause hives?
Itching from Flagyl may be a herx or a sensitivity to the drug. Urticaria (hives) is a known side-effect.
Why is my drug rash higher?
Your personal risk for developing a drug rash may be higher if you have certain risk factors, such as being older and being female.
What is a drug rash?
A drug rash, sometimes called a drug eruption, is a reaction your skin can have to certain drugs. Almost any drug can cause a rash. But antibiotics (especially penicillins and sulfa drugs), NSAIDs, and anti-seizure drugs are the most common drugs to cause a rash. Read on to learn more about the different kinds of drug rashes and how to manage them.
What to do if your rash is itchy?
For example, if the rash is very itchy, an antihistamine or oral steroid can help manage the itching until the rash clears up .
Why does my skin get red?
Erythroderma is a potentially life threatening condition that causes nearly your entire skin to become itchy and red. Your skin may grow scaly within several days. You may also experience a fever, with your skin feeling hot to the touch.
What is the word for a rash on a drug?
Urticaria is another word for hives. Hives are the second most common type of drug rash. They’re small, pale red bumps that can form larger patches. Hives are usually also very itchy.
How long does it take for a rash to go away from a drug?
But in some cases, it can take a drug up to two weeks to cause a rash. The rash usually disappears once you stop taking the drug. Here’s a look at some of the more common drug rashes.
What is the treatment for a drug rash?
These include severe urticaria, erythroderma, SJS/TEN, anticoagulant-induced skin necrosis, and DRESS. At the hospital, you may be given intravenous steroids and hydration.

For Healthcare Professionals
Frequently Asked Questions
Common side effects
- Nausea
- Diarrhea
- Headache disorder
- Anorexia
- Abdominal pain with cramps
Common side effects
- Nausea
- Diarrhea
- Headache disorder
- Anorexia
- Abdominal pain with cramps
- Alcohol intolerance
- Peripheral neuropathy
- Dysgeusia
- Vaginal dryness
- Xerostomia
If any of these effects persist or worsen, tell your doctor or pharmacist promptly
- Dizziness
- Headache
- Stomach upset
- Nausea
- Vomiting
If any of these effects persist or worsen, tell your doctor or pharmacist promptly
- Dizziness
- Headache
- Stomach upset
- Nausea
- Vomiting
- Loss of appetite
- Diarrhea
- Constipation
- Metallic taste in your mouth
Tell your doctor right away if you have any serious side effects, including
- Signs of a new infection
- Easy bruising/bleeding
- Stomach/abdominal pain
- Painful urination
Get medical help right away if you have any very serious side effects, including
- Unsteadiness
- Seizures
- Mental/mood changes
- Trouble speaking
- Numbness/tingling of arms/legs
- Eye pain
- Sudden vision changes
- Headache that is severe or doesn't go away
- Stiff/painful neck
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including
- Rash
- Itching/swelling
- Severe dizziness
- Trouble breathing
Other things to note
- This medication may cause your urine to turn darker in color. This effect is harmless and will disappear when the medication is stopped.
- 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.
Further Information