Fosfomycin Tromethamine is an antibiotic that fights infection caused by bacteria.

Fosfomycin Tromethamine is used to treat bladder infections.

Fosfomycin Tromethamine may also be used for purposes not listed in this medication guide.

Use only as directed. Tell your doctor if you use other medicines or have other medical conditions or allergies.

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Fosfomycin Tromethamine is usually given in only one dose. Do not take more than a single dose unless your doctor tells you to.

You may take Fosfomycin Tromethamine with or without food.

Fosfomycin Tromethamine is a powder medicine that must be mixed with water before using it. Do not take the dry powder without adding water.

Dissolve the powder in 3 to 4 ounces (1/2 cup) of cold water. Stir this mixture and drink all of it right away. To make sure you get the entire dose, add a little more water to the same glass, swirl gently and drink right away.

Do not mix Fosfomycin Tromethamine oral powder with hot water.

It may take 2 or 3 days before your symptoms improve.

Call your doctor if your symptoms do not improve within 3 days after treatment, or if you have any other new symptoms.

To be sure Fosfomycin Tromethamine is the right antibiotic for the type of infection you have, your urine may need to be tested before and after you take this medicine.

Store at room temperature away from moisture and heat. Keep the powder in its original package until you are ready to mix your dose.

You should not use Fosfomycin Tromethamine if you are allergic to it.

Tell your doctor if you are pregnant or breastfeeding.

Fosfomycin Tromethamine should not be given to a child younger than 12 years old.

Do not share Fosfomycin Tromethamine Tromethamine with another person, even if they have the same symptoms you have.

Fosfomycin Tromethamine Tromethamine is used as a single dose and does not have a daily dosing schedule.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include hearing problems and altered sense of taste.

Antibiotic medicines can cause diarrhea. Tell your doctor if you have diarrhea that is watery or bloody.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Fosfomycin Tromethamine may cause serious side effects. Call your doctor at once if you have:

• diarrhea that is watery or bloody; or

• new or worsening bladder symptoms (burning, painful urination).

Common side effects of Fosfomycin Tromethamine may include:

• nausea, upset stomach, stomach pain, diarrhea;

• headache, dizziness;

• weakness;

• rash;

• sore throat, runny nose;

• back pain; or

• menstrual pain, vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Tell your doctor about all your other medicines, especially metoclopramide.

Other drugs may affect Fosfomycin Tromethamine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.