Fosfomycin 3g

What is Fosfomycin used for​​​?

Also known as Monurol, Fosfomycin is an antibiotic used to treat certain urinary tract infections in women. It works by killing bacteria or preventing their growth. It can also be used to prevent urinary tract infections when you undergo surgery or procedures for urinary problems. 

This medicine may be used to treat other conditions as decided by your doctor.

Fosfomycin Dosage and How to Use​

Take Fosfomycin exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor. 

Take this medicine on an empty stomach, at least 2-3 hours before or after a meal, preferably before bedtime after emptying the bladder. 

Fosfomycin comes as a sachet of granules. Empty the contents of the sachet into a glass. Add an appropriate amount of water (about half a cup) then stir to dissolve. Drink the solution immediately. Do not take the medicine in its dry form.

The dose of this medicine will be decided by your doctor. Your doctor will advise you on the treatment timeframe depending on the type and severity of your infection. Generally, for uncomplicated lower urinary tract infection, only a single dose is required. 

What are the possible side effects of Fosfomycin?​

Fosfomycin is generally well tolerated. It may occasionally cause dizziness. If affected, do not drive or take part in any activity in which you need to be alert. 

Other side effects may include any of the following: diarrhea, nausea, vomiting, stomach pain, indigestion, vaginal itching or irritation, and headache.

What precautions should I take?

Do not take Fosfomycin if you ever had an allergic reaction (e.g. rashes, breathlessness, swollen eyes) to this medicine or any of its ingredients.

Alert your doctor if you have the following conditions as Fosfomycin may not be suitable for you:

• Severe kidney disease
• Undergoing hemodialysis (a procedure used to filter the blood when the kidneys are not functioning)
• Pregnant or breastfeeding

What other medications and foods should I avoid when taking Fosfomycin?

Inform your doctor and pharmacist if you are taking any of these medicines:

• Medicines for nausea or vomiting e.g. Metoclopramide, Domperidone
• Cisapride (medicine used to treat "heartburn", a burning pain in your chest caused by food or acid from your stomach that backs up into your mouth)

This list does not include all medicines that may interact with Fosfomycin.

Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.

Handling and Storage

• ​Store in a cool and dry place, away from direct sunlight.
• Keep the medicine out of reach of children.
• Throw away all expired medicines.

The above information answers some common questions about this medicine. It does not contain all the available information. It also does not take the place of talking to your doctor or pharmacist.

References

https://www.mims.com/singapore/drug/info/fosfomycin/patientmedicine/fosfomycin