• shortness of breath, running out of breath easily;

• fever, chills, cough, chest pain;

• jaundice (yellowing of the skin or eyes);

• pale skin, easy bruising, unusual weakness;

• numbness or tingling; or

• diarrhea that is watery or bloody.

Less serious side effects may include:

• rust-colored or brownish urine;

• headache;

• nausea, vomiting, upset stomach;

• bloating or gas, constipation;

• feeling dizzy or drowsy;

• blurred vision; or

• vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

What other drugs will affect nitrofurantoin?

Before taking nitrofurantoin, tell your doctor if you are taking:

• magnesium salicylate (Doan's Pills, Mobidin, Momentum);

• choline magnesium salicylate (Tricosal, Trilisate);

• probenecid (Benemid); or

• sulfinpyrazone (Anturane).

This list is not complete and there may be other drugs that can interact with nitrofurantoin. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about nitrofurantoin.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.