What is the most important information I should know about foscarnet?
Foscarnet is not a cure for CMV, and the virus may progress during or after treatment.
Before using foscarnet, tell your doctor if you have kidney disease, a seizure disorder,
heart disease, a nerve disorder, or an electrolyte imbalance such as low calcium, potassium, or
magnesium.
To be sure this medication is not causing harmful effects, your blood will need to be
tested on a regular basis. Your kidney function may also need to be tested, and you may also
need regular eye exams. Do not miss any scheduled visits to your doctor.
Stop using foscarnet and call your doctor at once if you urinate less than usual or not
at all, or if you have
numbness or
tingling around your mouth, uncontrolled muscle movements,
or pain or burning when you urinate.
There are many other medicines that can cause kidney damage or lower
calcium levels and should not be used together with foscarnet. Tell your doctor
about all the prescription and over-the-counter medications you use. This includes vitamins,
minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new
medication without telling your doctor. Keep a list with you of all the medicines you use and
show this list to any doctor or other healthcare provider who treats you.
What is foscarnet?
Foscarnet is an antiviral medication that prevents certain virus cells from multiplying in
your body.
Foscarnet is used to treat cytomegalovirus (CMV) retinitis in people with AIDS.
Foscarnet is not a cure for CMV, and the virus may progress during or after treatment.
Foscarnet 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 medications have been tried
without successful treatment.
Foscarnet may also be used for purposes other than those listed in this medication guide.
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