Flagyl side effects.

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Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor immediately. Only your doctor can determine whether it is safe for you to continue taking Flagyl.

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

Symptoms of an allergic reaction include:
- Dizziness;
- Itching;
- Rash;
- Swelling;
- Trouble breathing;

Common side effects of Flagyl:
Gel, cream:
- Burning;
- Contact dermatitis;
- Dryness;
- Itch;
- Local irritation;
- Redness;
Oral, suppository, intravenous:
- Diarrhoea;
- Headache;
- Local reaction (intravenous infusion);
- Loss of appetite;
- Metallic taste;
- Nausea;
- Vomiting;
Uncommon side effects of Flagyl:
Gel, cream:
- Treatment failure;
- Facial oedema;
- Eyelid oedema;
Oral, suppository, intravenous:
- Weakness;
- Vertigo;
- Vaginitis;
- Vaginal candidiasis;
- Stomatitis;
- Rash;
- Pyuria;
- Proctitis;
- Oral mucositis;
- Moderate leucopenia;
- Itch;
- Irritability;
- Insomnia;
- Incoordination;
- Incontinence;
- Furry tongue;
- Flushing;
- Fever;
- Dysuria;
- Dysparenuria;
- Dizziness;
- Decrease of libido;
- Cystitis;
- Constipation;
- Confusion;
- Abnormal liver function tests;

Flagyl may cause urine to darken in color. Flagyl is not harmful. In the unlikely event you have an allergic reaction to Flagyl, seek immediate medical attention.

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

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with Flagyl. Because a side effect is stated here, it does not mean that all people using Flagyl will experience that or any side effect.
- Confusion;
- Darkening of the urine;
- Decrease in the number of white blood cells in the blood (leucopenia);
- Disorder of the peripheral nerves called peripheral neuropathy that causes weakness and numbness (on prolonged or intensive therapy);
- Disturbances of the gut such as diarrhoea constipation nausea vomiting or abdominal pain;
- Dizziness;
- Drowsiness;
- Headache;
- Inflamed and sore mouth;
- Itchy rash (urticaria);
- Liver disorders;
- Loss of appetite;
- Pain in the muscles or joints;
- Seizures;
- Sensation of a furry tongue;
- Severe swelling of lips face or tongue (angioedema);
- Shaky movements and unsteady walk (ataxia);
- Skin rashes;
- Unpleasant taste;
- Visual disturbances;

If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

The side effects listed above may not include all of the side effects reported by the drug's manufacturer.

Flagyl may cause urine to darken in color. This is harmless.

Two serious side effects that have occurred with Flagyl are seizures and numbness or tingling in the arms, legs, hands, and feet. If you experience either of these symptoms, stop taking the medication and call your doctor immediately.

For more information about any other possible risks associated with Flagyl, please read the information provided with the medicine or consult your doctor or pharmacist.

Side effects may include:
- Vomiting;
- Upset stomach;
- Nausea;
- Loss of appetite;
- Headache;
- Diarrhea;
- Constipation;
- Abdominal cramps;

Flagyl Oral Side Effects:
- Changes in taste;
- Constipation;
- Diarrhea;
- Dizziness;
- Dry mouth;
- Headache;
- Loss of appetite;
- Nausea;
- Stomach pain;

Flagyl may be used to treat a severe intestinal condition (pseudomembranous colitis) due to a type of resistant bacteria. However, sometimes treatment with Flagyl may fail. Tell your doctor immediately if you develop: persistent diarrhea, abdominal or stomach pain/cramping, or blood/mucus in your stool.

Two serious adverse reactions reported in patients treated with Flagyl (Flagyl) have been convulsive seizures and peripheral neuropathy, the latter characterized mainly by numbness or paresthesia of an extremity. Since persistent peripheral neuropathy has been reported in some patients receiving prolonged administration of Flagyl, patients should be specifically warned about these reactions and should be told to stop the drug and report immediately to their physicians if any neu-rologic symptoms occur.

Flagyl may occur weeks after treatment with other antibiotics has stopped.
Do not use anti-diarrhea products or narcotic pain medications if you have any of these symptoms because these products may make them worse.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects:
- Diarrhea that is watery or bloody;
- Fever chills body aches sore throat flu symptoms;
- Numbness or tingling in your hands or feet;
- Pain or burning when you urinate;
- Seizures (convulsions);
- White patches or sores inside your mouth or on your lips;

The most common adverse reactions reported have been referable to the gastrointestinal tract, particularly nausea reported by about 12% of patients, sometimes accompanied by headache, anorexia, and occasionally vomiting; diarrhea; epi-gastric distress; and abdominal cramping. Constipation has also been reported.

Less serious Flagyl side effects may include:
- vaginal itching or discharge;
- swollen or sore tongue;
- nausea stomach pain diarrhea;
- headache dizziness loss of balance;
- dry mouth or unpleasant metallic taste;
- cough sneezing runny or stuffy nose;

The following reactions have also been reported during treatment with Flagyl (Flagyl):
- Cardiovascular: Flattening of the T-wave may be seen in electrocardiographic tracings;
- Central Nervous System: Convulsive seizures peripheral neuropathy dizziness vertigo incoordination ataxia confusion irritability depression weakness and insomnia;
- Hematopoietic: Reversible neutropenia (leuko-penia); rarely reversible thrombocytopenia;
- Hypersensitivity: Urticaria erythematous rash flushing nasal congestion dryness of the mouth (or vagina or vulva) and fever;
- Mouth: A sharp unpleasant metallic taste is not unusual Furry tongue glossitis and sto-matitis have occurred; these may be associated with a sudden overgrowth of Candida which may occur during therapy;
- Other: Proliferation of Candida in the vagina dyspareunia decrease of libido proctitis and fleeting joint pains sometimes resembling &ldquoserum sickness" If patients receiving Flagyl drink alcoholic beverages they may experience abdominal distress nausea vomiting flushing or headache A modification of the taste of alcoholic beverages has also been reported Rare cases of pan-creatitis which generally abated on withdrawal of the drug have been reported;
- Renal: Dysuria cystitis polyuria incontinence and a sense of pelvic pressure Instances of darkened urine have been reported by approximately one patient in 100000 Although the pigment which is probably responsible for this phenomenon has not been positively identified it is almost certainly a metabolite of Flagyl and seems to have no clinical significance;

Tell your doctor immediately if any of these unlikely but serious side effects occur:
- Mental/mood changes;
- Numbness/tingling of hands/feet;
- Painful urination;
- Seizures;
- Unsteadiness;

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Tell your doctor immediately if any of these rare but very serious side effects occur:
- Persistent fever;
- Persistent nausea/vomiting;
- Severe stomach pain;
- Sore throat;
- Unusual bleeding/bruising;

Crohn's disease patients are known to have an increased incidence of gastrointestinal and certain extraintestinal cancers. There have been some reports in the medical literature of breast and colon cancer in Crohn's disease patients who have been treated with Flagyl at high doses for extended periods of time. A cause and effect relationship has not been established. Crohn's disease is not an approved indication for Flagyl.

Flagyl is a valuable antibiotic and is generally well tolerated with appropriate use. Minor side effects include nausea, headaches, loss of appetite, a metallic taste, and rarely a rash. Serious side effects of Flagyl are rare. Serious side effects include seizures and damage of nerves resulting in numbness and tingling of extremities (peripheral neuropathy). Flagyl should be stopped if these symptoms appear.
- Change in taste sensation;
- Diarrhea;
- Dizziness;
- Dry mouth;
- Headache;
- Nausea;
- Stomach pain;
If these effects persist or worsen, contact your doctor.
Unlikely but report:
- Feet;
- Loss of consciousness;
- Seizures;
- Tingling of hands;
Very unlikely but report:
- Fever;
- Itching;
- Mood/mental changes;
- Rash;
- Severe stomach pain;
- Sore throat;
- Unsteadiness;
- Vaginal irritation;
- Vomiting;

A very serious allergic reaction to Flagyl is unlikely, but seek immediate medical attention if it occurs.
Symptoms of a serious allergic reaction may include:
- Itching;
- Rash;
- Severe dizziness;
- Swelling;
- Trouble breathing;

If you notice other effects not listed above, contact your doctor or pharmacist.