Copyright 2025
Medical Security Card Company, LLC
All Rights Reserved
We take the privacy of your personal information seriously. By signing up I agree to WellRx's terms of use and privacy policy.
FOSCARNET/Foscavir (fos KAR net) is an antiviral medicine. It is used to treat or prevent infections caused by certain kinds of viruses. Examples of these infections include herpes and cytomegalovirus (CMV).
FOSCARNET (fos KAR net) is an antiviral medicine. It is used to treat or prevent infections caused by certain kinds of viruses. Examples of these infections include herpes and cytomegalovirus (CMV).
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
This medicine is for infusion into a vein. It is given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Visit your doctor or health care professional for regular checkups. Discuss any new symptoms with your doctor. Your vision and blood may be tested before and during use of this medicine.
Check with your doctor or health care professional if you get an attack of severe diarrhea, nausea and vomiting, or if you sweat a lot. The loss of too much body fluid can make it dangerous for you to take this medicine.
Tell your doctor right away if you have any tingling or numbness in your mouth or in your arms or legs. This may be a sign of a serious problem.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.
This does not apply.
Side effects that you should report to your doctor or health care professional as soon as possible:
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep out of the reach of children.
If you are using this medicine at home, you will be instructed on how to store this medicine. Throw away any unused medicine after the expiration date on the label.
NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.
DISCLAIMER: This drug information content is provided for informational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Patients should always consult their physician with any questions regarding a medical condition and to obtain medical advice and treatment. Drug information is sourced from GSDD (Gold Standard Drug Database ) provided by Elsevier.
You need to log into the site to use this feature
You may find alternative ways to save with this medication. Talk to your pharmacist about the potential option(s) noted below.
Manufacturer Coupons and Offers Available
Number of Uses:
foscarnet sodium
24 MG/ML | INFUS. BTL | 250 mls
You need to log into the site to use this feature
This feature requires registration. Sign up or log in to your free WellRx account to gain access to this and other tools to help make managing your medications and wellness easier.
Benefits Include:
This feature requires registration. Sign up or log in to your free WellRx account to gain access to this and other tools to help make managing your medications and wellness easier.
Benefits Include:
You will be redirected to your program in 5 seconds.
Our Terms and Conditions and Privacy Policy have recently been updated.
By declining you will be logged out of your account