FOSFONIK 3gm Injection 1.0 Injection in 1 vial

Last Updated: March 30th, 2026

FOSFONIK 3gm Injection is a product of Amagen India Life Sciences

Composition: Fosfomycin (3gm)

Pack of 1 injection

₹ 459.38

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Limited Stock

All Details About FOSFONIK 3gm Injection

Find out detailed description, uses, directions of use, side effects, warnings and precautions, frequently asked questions about FOSFONIK 3gm Injection

Description:

FOSFONIK 3gm 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.

FOSFONIK 3gm 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.

Earlier 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:

Bacterial infections

Directions For Use:

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

Side Effects:

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

Ordinary side effects of FOSFONIK

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

Warning & Precautions:

Alcohol

CAUTION

Alcohol should be used with caution while taking FOSFONIK 3gm Injection.

Pregnancy

CONSULT YOUR DOCTOR

FOSFONIK 3gm 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

FOSFONIK 3gm 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

FOSFONIK 3gm Injection may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

CAUTION

FOSFONIK 3gm 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 FOSFONIK 3gm Injection in patients with liver disease.

FAQs:

What kind of antibiotic is FOSFONIK 3gm Injection?

FOSFONIK 3gm 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 FOSFONIK 3gm Injection prevents the attachment of bacteria to superficial cells of urinary bladder, hence preventing infection.

What is the use of FOSFONIK 3gm 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 FOSFONIK 3gm Injection?

The schedule of taking FOSFONIK 3gm 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 FOSFONIK 3gm Injection if have kidney problems?

FOSFONIK 3gm 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 FOSFONIK 3gm Injection stay in your system?

The time for which FOSFONIK 3gm 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.

Written by:
Dr. T. Sharmila Krishna
M.B.B.S., MD (Biochemistry)

Reviewed by:
Dr. Sureshbabu Yadav
M.B.B.S., DIP.DIAB, F.R.S.H

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