You may report side effects to Health Canada at 1-86.Д«efore taking nitrofurantoin, tell your doctor or pharmacist if you are allergic to it or if you have any other allergies. You may report side effects to FDA at 1-80 or at In Canada - Call your doctor for medical advice about side effects. In the US - Call your doctor for medical advice about side effects. If you notice other effects not listed above, contact your doctor or pharmacist. This is not a complete list of possible side effects. 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. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.ДЄ very serious allergic reaction to this drug is rare. Use of nitrofurantoin for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection. If you have these symptoms, do not use anti- diarrhea or opioid products because they may make symptoms worse. Tell your doctor right away if you develop: diarrhea that doesn't stop, abdominal or stomach pain/cramping, blood/ mucus in your stool. This condition may occur during treatment or weeks to months after treatment has stopped. This medication may rarely cause a severe intestinal condition due to a bacteria called C. Get medical help right away if you develop symptoms of lung problems, including: persistent cough, chest pain, shortness of breath/ trouble breathing, joint/ muscle pain, bluish/purplish skin.

Lung problems may occur within the first month of treatment or after long-term use of nitrofurantoin (generally for 6 months or longer). This medication may rarely cause very serious (possibly fatal) lung problems. Get medical help right away if you have any very serious side effects, including: numbness/tingling of the hands/feet, unusual muscle weakness. Tell your doctor right away if you have any serious side effects, including: eye pain, vision changes, mental/mood changes, persistent/severe headaches, new signs of infection (such as fever, persistent sore throat), easy bruising/bleeding. Get medical help right away if you notice dark urine along with any of the following symptoms: persistent nausea/ vomiting, stomach/ abdominal pain, yellowing eyes/ skin, tiredness, fast/pounding heartbeat. However, dark brown urine can also be a sign of rare side effects ( liver problems or anemia).

This is usually a harmless, temporary effect and will disappear when the medication is stopped. This medication may cause your urine to turn dark yellow or brown in color. Many people using this medication do not have serious side effects. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

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