Fosfomycin (By mouth)
Treats urinary tract infections (UTI). This medicine is an antibiotic.
Antibiotic (About this – PubMed Health)
Uses of This Medicine
Fosfomycin is used to treat urinary tract infection and cystitis (bladder infection) in women. This medicine is an antibiotic. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections.
This medicine is available only with your doctor’s prescription.
Other uses (PubMed Health)
How To Use
Your doctor will tell you how much medicine to use. Do not use more than directed.
Only one dose of this medicine is needed to treat your UTI. The medicine stays in your body to fight the infection.
You may take this medicine with or without food.
The medicine is an orange-flavored powder that must be mixed with water before using. Never swallow the medicine in its dry form.
To use:Open the packet and pour all of the powder into 3 to 4 ounces (1/2 cup) of water. Do not use hot water. Stir until the powder is dissolved, and drink the mixture right away.
Drink extra fluids so you will pass more urine while you are using this medicine. This will keep your bladder working well and help prevent bladder problems.
If a dose is missed:
You should only use one dose of the medicine to treat your UTI.
How to Store and Dispose of This Medicine:
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
Keep all medicine out of the reach of children. Never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
When Not To Use
You should not use this medicine if you have had an allergic reaction to fosfomycin.
This medicine may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop taking this medicine. Do not take any medicine to treat diarrhea without first checking with your doctor. If you have any questions or if mild diarrhea continues or gets worse, check with your doctor.
Call your doctor if your symptoms do not improve or if they get worse.
Possible side effects
Summary More details
Call your doctor right away if you notice any of these side effects:
Severe and watery diarrhea that may contain blood.
Severe stomach pain.
If you notice these less serious side effects, talk with your doctor:
Headache or dizziness.
Mild diarrhea, nausea, heartburn, indigestion, or upset stomach.
Vaginal itching or discharge.
If you notice other side effects that you think are caused by this medicine, tell your doctor.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
More side effects of this drug
Brand names include
There may be other brand names for this medicine.