Fosfomust Injection

Reviewed By Dr. Rajeev Sharma, MBA, MBBS

Last updated on 25 Nov 2025 | 03:05 PM (IST)

Fosfomust Injection is an antibiotic medicine used to treat bacterial infections in your body. It is effective in some infections of the urinary tract, lungs (eg. pneumonia), bones, brain (eg. meningitis), and blood. However, it is only used when other common antibiotics cannot be used.

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Fosfomust Injection

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Crifos 4 Injection

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Fosfomycin (4gm)

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General Information

Contains

Fosfomycin (4gm)

Marketer

Efedra Pharmaceuticals Pvt. Ltd.

Storage

Store below 25°C

The content is shown in English

Product introduction

Fosfomust Injection should be taken regularly at evenly spaced intervals as per the schedule prescribed by your doctor. The dose will depend on what you are being treated for, but you should always complete a full course of this antibiotic as prescribed by your doctor. Do not stop taking it until you have finished, even when you feel better. If you stop taking it early, some bacteria may survive and the infection may come back.

The most common side effects of this medicine include headache, dizziness, indigestion, and gastrointestinal disturbances. Consult your doctor if your condition does not improve even after two to three days or if these side effects bother or worry you.

Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. Pregnant or breastfeeding mothers should consult their doctor before using it. Avoid alcohol and caffeinated drinks while using this medicine. It may make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Uses of Fosfomust Injection

Bacterial infections

Benefits of Fosfomust Injection

Bacterial infections
Fosfomust Injection is an antibiotic medicine that works by killing the infection-causing bacteria in your body. It is effective for bacterial infections of the throat, ears, urinary tract, skin, and soft tissues. Fosfomust Injection is given by a doctor or a nurse and should not be self-administered. This medicine usually makes you feel better within a few days, but you should continue taking it as prescribed even when you feel better. Stopping it early may make the infection come back and harder to treat.

Side effects of Fosfomust Injection

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Fosfomust

Injection site reactions (pain, swelling, redness)
Headache
Dizziness
Indigestion
Gastrointestinal disturbance

How to use Fosfomust Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Fosfomust Injection works

Fosfomust Injection is an antibiotic. It kills bacteria by preventing them from forming the bacterial protective covering which is needed for their survival.

All substitutes for Fosfomust Injection

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

Fosfomust Injection is used for the treatment of bacterial infections when use of other common medicines is considered inappropriate.
It is given as an injection into a vein by your doctor or nurse.
Fosfomust Injection may cause dizziness or sleepiness. Don't drive or do anything requiring concentration until you know how it affects you.
Your doctor may regularly monitor the level of electrolytes in your blood. A low-sodium diet is recommended during treatment.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking Fosfomust Injection.

Pregnancy

CONSULT YOUR DOCTOR

Fosfomust Injection is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.

Breast feeding

CONSULT YOUR DOCTOR

Fosfomust Injection may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

UNSAFE

Fosfomust Injection may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

CAUTION

Fosfomust Injection should be used with caution in patients with kidney disease. Dose adjustment may be needed.

Liver

CONSULT YOUR DOCTOR

There is limited data available on the use of Fosfomust Injection in patients with liver disease.

Frequently asked questions

What kind of antibiotic is Fosfomust Injection?

Fosfomust Injection is a broad-spectrum antibiotic which kills the infection causing bacteria in your body by affecting and damaging the cell wall (covering of bacteria) synthesis. It is also seen that Fosfomust Injection prevents the attachment of bacteria to superficial cells of urinary bladder, hence preventing infection.

What is the use of Fosfomust Injection?

This medication is an antibiotic used in few specific conditions like infections of urinary bladder infections and lower urinary tract infections and the infection of bone marrow. It is also sometimes used to treat infection of meninges (covering of the brain). Whether this medicine should be given to you or not will be decided by your doctor depending upon the type of bacteria causing the infection. It acts only in bacterial infections and is of no use in viral infections (such as common cold and flu).

How often can you take Fosfomust Injection?

The schedule of taking Fosfomust Injection is decided by your doctor. The daily dose is determined on the basis of bacteria causing the infection, severity and site of the infection. While deciding the dose and duration, the doctor will also consider your age, body weight and status of kidney function. Usually, it is given as 2–3 divided doses in whole day.

Can I take Fosfomust Injection if have kidney problems?

Fosfomust Injection should be given with caution if the patient has kidney problems. Your doctor may get regular blood tests done to monitor kidney function. If at all needed to be given to patients with kidney impairment, the doctor may need to adjust the dose according to the severity of the kidney problem.

How long does Fosfomust Injection stay in your system?

The time for which Fosfomust Injection will stay in our body depends upon how well your kidney functions as this medicine is excreted by the kidney. In healthy adults, about 80-90% of the total medicine injected is excreted by kidney within 10 hours after a single injection into the veins. If the patient has kidney dysfunction, the medicine may stay back for a longer time in the body.

Fact Box

Chemical Class

Organic phosphonic acids

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Cell wall synthesis inhibitor- UTI

Related lab tests

Complete Blood Count

Peripheral Smear Examination

References

Chambers HF, Deck DH. Beta-Lactam and Other Cell Wall- & Membrane-Active Antibiotics. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 788-89.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 595-97.
CiplaMed. Fosfomycin sodium [Prescribing Information]. [Accessed 20 Feb. 2024] (online) Available from:

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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Efedra Pharmaceuticals Pvt. Ltd.
Address: 306, AJAYNAGAR, KOLKATA, WEST BENGAL-700075' INDIA, MOBILE NO-9007132955

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Fosfomust Injection

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Fosfomust Injection

Benefits of Fosfomust Injection

Side effects of Fosfomust Injection

How to use Fosfomust Injection

How Fosfomust Injection works

All substitutes for Fosfomust Injection

Crifos 4 Injection

Fosfotas Injection

Fosfona 4gm Injection

Murinact 4gm Injection

Zan-Fos Injection

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Frequently asked questions

What kind of antibiotic is Fosfomust Injection?

What is the use of Fosfomust Injection?

How often can you take Fosfomust Injection?

Can I take Fosfomust Injection if have kidney problems?

How long does Fosfomust Injection stay in your system?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Complete Blood Count

Peripheral Smear Examination

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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