Generic name: Fosfomycin
Pregnancy & Lactation: Risk data not available
What is Fosfomycin Tromethamine?
Fosfomycin is an antibiotic that fights infection caused by bacteria.
Fosfomycin is used to treat bladder infections.
Fosfomycin may also be used for purposes not listed in this medication guide.
Warnings
You should not use fosfomycin if you are allergic to it.
Tell your doctor if you are pregnant or breastfeeding.
Fosfomycin should not be given to a child younger than 12 years old.
Do not share this medicine with another person, even if they have the same symptoms you have.
How should I use Fosfomycin Tromethamine
Use Fosfomycin Tromethamine (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Fosfomycin 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 with or without food.
Fosfomycin 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 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 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.
Fosfomycin is used as a single dose and does not have a daily dosing schedule.
Fosfomycin Tromethamine side effects
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.
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 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.
What other drugs will affect Fosfomycin Tromethamine?
Antibiotic medicines can cause diarrhea. Tell your doctor if you have diarrhea that is watery or bloody.