Foscarnet Sodium

Fact of Medicine

  • Innovator Brand Name: Foscavir
  • Brand  Name: Scarnet
  • API: Foscarnet Sodium
  • Packaging: 250 mL Glass Bottle
  • Strength: 24mg/ml
  • Manufacturer Name: Mediclone
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Foscarnet Sodium Uses:

Foscarnet Sodium is an antiviral agent that helps prevent the multiplication of certain viruses in your body.

  • Cytomegalovirus (CMV) Retinitis: It is used to treat cytomegalovirus (CMV) retinitis in people whose immune systems are weakened by AIDS.
  • Herpes Simplex Virus (HSV): It is also used to treat herpes simplex virus (HSV) in people with a weak immune system. Foscarnet is usually given for HSV after other antiviral drugs have been tried without successful treatment.


The recommended dosage, frequency, or infusion rates must not be exceeded. All the doses of Foscarnet must be individualized for patients’ renal function.

Induction Therapy: The recommended initial dose of foscarnet injection for patients with normal renal function is:

  • For patients with CMV retinitis, either 90 mg/kg (1.5 to 2 hour infusion) every 12 hours or 60 mg per kg (minimum 1-hour infusion) every 8 hours over 2-3 weeks on behalf of clinical response.
  • For patients with acyclovir-resistant HSV, 40 mg per kg (minimum 1-hour infusion) either every 8 or 12 hours for 2-3 weeks or until healed.

Use an infusion pump to control the rate of infusion. Adequate hydration is required to establish a diuresis, both prior to and throughout therapy to scale down renal toxicity.

Maintenance Therapy: Following induction therapy, the recommended maintenance dose of foscarnet sodium for CMV retinitis is 90 to 120 mg/kg/day (individualized for renal function) and administered as an intravenous infusion over two hours. Because the superiority of the 120 mg/kg daily has not been evaluated in trials and given the likely relationship of increased plasma Scarnet- foscarnet levels to toxicity, it is recommended that the majority of patients be initiated on maintenance therapy with a dose of 90 mg/kg daily. Escalation to 120 mg/kg daily may be considered should early reinduction be needed because of retinitis progression. A limited group of patients who demonstrate good tolerance to foscarnet may benefit from the initiation of maintenance therapy at 120 mg/kg daily earlier in their treatment.

Use an infusion pump to control the rate of infusion with all doses. Again, hydration to establish diuresis both prior to and throughout therapy is recommended to scale down the renal toxicity.

Those who experience progression of retinitis while on foscarnet sodium maintenance therapy may be retreated with the induction regimen and maintenance regimen given above or along with foscarnet sodium injection and ganciclovir. Due to the physical incompatibility, foscarnet sodium injection and ganciclovir must not be mixed.

Side Effects:

The most commonly reported Foscarnet Sodium side effects to include:

  • chest pain
  • headache
  • back pain
  • vomiting
  • nausea
  • diarrhea
  • fever
  • flu-like symptoms

Warnings and Precautions:

  • Foscarnet sodium 24mg/ml should be used with proper caution in those with abnormal renal function because reduced plasma clearance of foscarnet will be responsible for elevated plasma levels.
  • Use of foscarnet 24mg/ml in 250 ml by the rapid intravenous infusion is not recommended. Avoid receiving this medicinal product in case you are hypersensitive to it or any of its other existing ingredients.
  • Foscarnet could affect your being able to use some tools or machines or drive. Discuss with your health specialist prior to getting involved in any kind of such activity.
  • It is absolutely mandatory to drink plenty of fluid along with foscarnet infusion. This may help you prevent kidney complications. If you require fluid, the health specialist will suggest it to you at about the common time as the Foscarnet.
  • The quantity of Foscarnet injection which you are recommended typically depends on how well your kidneys are working/functioning. Quantity also depends on the weight of the patients.
  • Foscarnet injection (Foscavir) should be avoided during pregnancy. Do not conceive a baby during the treatment with Foscarnet. The use of effective contraception ways is highly recommended. 
  • Male patients treated with the Foscarnet injection shouldn’t father a child while or up to 6 months after the last dose. Do not take this drug in case you are breastfeeding.

More Info


Foscarnet sodium, 24 mg/mL for intravenous infusion, is supplied in glass bottles. Injection should be used only if the bottle and seal are intact, a vacuum is present, and the solution is clear and colorless. Store at 20-25°C (68-77°F). Protect from excessive heat (above 40°C) and from freezing.

Availability in India:

The Indian Pharma helps connect buyers with suppliers who can ship SCARNET at the global level as per the needs of buyer’s. The Indian Pharma (TIP) provides guarantee of quality and delivery for the SCARNET- Foscarnet Sodium Injections.

Buying Procedure:

To Sodium- SCARNET, you can contact us at our Toll-free Number: 1800 889 1064 or on WhatsApp Number +919310090915 or an Email to us at: along with your Identity Proof, Valid Prescription Letter and Medical Reports.


Use of SCARNET-foscarnet, with the proper precautions, is generally quite safe and the efficiency is good, even with the extended use.


What does Scarnet contain as an active substance?

The medicine Scarnet specifically contains the active substance Foscarnet Sodium.

From which class of drug Scarnet belongs?

Scarnet belongs to a group of medicines called antivirals.

How is Foscarnet Sodium injection best taken?

Use this medicine as ordered by your health specialist. Follow all instructions precisely.

  • Foscarnet is given as an infusion into a vein over a period of time.
  • Drink lots of non caffeine liquids unless told to drink less liquid by your health specialist.

How much does Foscarnet cost?

The foscarnet cost in India can vary depending on a wide range of brands. To buy or procure this antiviral agent, you can Call or WhatsApp +91-9310090915 or send mail to

What do I do if I miss a Foscarnet dose?

If you miss a dose of Foscarnet injection, immediately call your health specialist to find out what to do.

Where can I get Foscarnet at the best price?

In order to get the best foscarnet price in India, buy this medicine from The Indian Pharma (a WHO-GDP and ISO 9001:2008 authorized Company). A medical prescription is required while buying Foscarnet injection.

Can I get Foscarnet even if I am not based in India?

The Indian Pharma (TIP) helps patients in accessing or importing Foscarnet Sodium- SCARNET, not approved in their home country against the legitimate prescription and in conformity with the all local laws and regulations of their home country.

Is it safe to buy Foscarnet injection online from India? 

Yes, You can buy foscarnet injection from India online at the best price from The Indian Pharma if Foscarnet has not been approved or is not available in your country.