Overview
Uses and benefits
Side effects
How to use
How drug works
Safety advice
Missed dose
All substitutes
Quick tips
Fact box
Interaction with drugs
Patient concerns

Author Details

Written By

Dr. Syeda Aafia

MBA, BDS

Reviewed By

Dr. Mekhala Chandra

MD, MBBS

Last updated

22 Sep 2025 | 06:07 PM (IST)

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Cidonat Injection

Prescription Required

Marketer

Natco Pharma Ltd

SALT COMPOSITION

Cidofovir (75mg/ml)

Salt Synonyms

Cidofovirum

Storage

Store below 25°C

Product introduction

Cidonat Injection is an antiviral medicine used to treat viral infections caused by cytomegalovirus (CMV) in adult patients having acquired immunodeficiency syndrome (AIDS). It helps prevent multiplication of viruses and reduces the risk of complications that can result from the infection.

Cidonat Injection is generally given under the supervision of a doctor or a nurse. Do not self-administer this medicine at home. Your doctor will decide the dose and duration of the treatment. Get the injection for as long as the doctor prescribes it. Your doctor may also do blood tests before starting and during treatment with this medicine.

The most common side effects of this medicine include protein in your urine, nausea, vomiting, fever, weakness, headahce, and rash. Inform your doctor if any of these side effects persist or bother you. Your doctor may suggest ways to prevent or reduce the side effects.

Cidonat Injection is contraindicated in patients with kidney disease. Tell your doctor if you have any other medical conditions. Let your doctor also know about all the medicines you take, including all prescription and over-thecounter medicines, vitamins, and herbal supplements. Pregnant and nursing mothers should not take this medicine as it may harm the developing baby.

Uses of Cidonat Injection

Treatment of Cytomegalovirus Infection

Benefits of Cidonat Injection

In Treatment of Cytomegalovirus Infection

Cytomegalovirus infection is a common virus infection which may have no symptoms at all or may have symptoms like fever and fatigue. Severe infection may show symptoms involving the eyes, brain, or other internal organs. This virus is spread through sexual and nonsexual contact with body secretions in people who are immunocompromised or those who have undergone any transplant. Cidonat Injection helps to prevent multiplication of the infection causing virus and treats the infection. It is given by a doctor or nurse and should not be self-administered. Follow your doctor’s instructions carefully to get maximum benefit.

Side effects of Cidonat 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 Cidonat

Vomiting
Fever
Decreased white blood cell count (neutrophils)
Weakness
Headache
Infection
Hair loss
Diarrhea
Pain
Increased creatinine level in blood
Anemia (low number of red blood cells)
Decreased appetite
Chills
Cough
Fungal infection of mouth
Nausea
Rash
Protein in urine

How to use Cidonat Injection

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

How Cidonat Injection works

Cidonat Injection stops the cytomegalovirus virus from being able to make copies of itself and spread.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Cidonat Injection. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

Cidonat Injection may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.

Breast feeding

CONSULT YOUR DOCTOR

Cidonat Injection is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby.

Driving

CONSULT YOUR DOCTOR

It is not known whether Cidonat Injection alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react.

Kidney

SAFE IF PRESCRIBED

Cidonat Injection is safe to use in patients with kidney disease. No dose adjustment of Cidonat Injection is recommended.

Liver

SAFE IF PRESCRIBED

Cidonat Injection is safe to use in patients with liver disease. No dose adjustment of Cidonat Injection is recommended.

What if you forget to take Cidonat Injection?

If you miss a dose of Cidonat Injection, please consult your doctor.

All substitutes

For informational purposes only. Consult a doctor before taking any medicines.

No substitutes found for this medicine

Quick tips

Cidonat Injection helps in the treatment of herpes, chickenpox, and shingles.
Do not skip any doses and finish the full course of treatment even if you feel better.
Drink plenty of water while on treatment with this medicine. This helps to prevent dehydration and kidney damage.
If you have genital herpes, use barrier methods (condoms) for contraception and avoid sexual contact while the sores are present.
Inform your doctor if you are pregnant or planning to conceive or breastfeeding.

Fact Box

Chemical Class

Pyrimidones

Habit Forming

Therapeutic Class

ANTI INFECTIVES

Action Class

Antiviral Agents (Non-HIV)

Interaction with drugs

Taking Cidonat with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Tenofovir disoproxil fumarate (Oral Route) Severe

Do not consume Tenofovir disoproxil fumarate with Cidofovir. If concurrent use is essential, your doctor may monitor your kidney function frequently. Concurrent use may increase t... More

Valganciclovir (Oral Route) Moderate

If concurrent use is essential, please consult your doctor. They may monitor your kidney's functioning closely. Cidofovir may slow down the removal of Valganciclovir from the body.... More

Ganciclovir (Injection Route) Moderate

If concurrent use is essential, please consult your doctor. They may monitor your kidney's functioning closely. Cidofovir may slow down the removal of Ganciclovir from the body.

Ganciclovir (Oral Route) Moderate

If concurrent use is essential, please consult your doctor. They may monitor your kidney's functioning closely. Cidofovir may slow down the removal of Ganciclovir from the body.

Cabozantinib (Oral Route) Mild

Talk to your doctor if you notice any unusual symptoms. Cidofovir may raise blood levels of Cabozantinib.

View all drug interactions

Patient concerns

i have unprotected sex with my friend. Can I take any drugs now to prevent any STD/HIV infection

Dr. Shyam Gupta

Obstetrics and Gynaecology

Hello PATIENT to 1mg. There is some medicine for prophylactic but you need to see physician for prescription and better you check HIV status of both partner

hello, one of my frnd suffering with hiv infection from last 2yrs her cd4 is more than 470 and viral load is zero undetectable now she is using art medicines i have doubt that can we have to use art medicine in the whole life or can we stop it once we get viral load zero

Dr. Atula Gupta

Dermatology

You still need to be on ART even if the viral load is undetectable

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