A purine nucleoside - It is used to treat or prevent infections caused by certain kinds of viruses
FDA Alerts
Clinical toxicity of oral and IV ganciclovir includes granulocytopenia, anemia, and thrombocytopenia.
In animal studies, ganciclovir was carcinogenic, teratogenic, and caused aspermatogenesis.
The only FDA-approved indications for IV ganciclovir are treatment of CMV retinitis in immunocompromised patients and prevention of CMV disease in transplant recipients at risk.
The only FDA-approved indications for oral ganciclovir are prevention of CMV disease in patients with advanced HIV infection, maintenance treatment of CMV retinitis in immunocompromised patients, and prevention of CMV disease in solid organ transplant recipients.
Because oral ganciclovir is associated with a risk of more rapid progression of CMV retinitis, it should be used as maintenance treatment only in those for whom this risk is balanced by the benefits associated with avoiding daily IV infusions.
GANCICLOVIR (gan SYE kloe veer) is an antiviral medicine. It is used to treat or prevent infections caused by certain kinds of viruses. It is commonly used to prevent and treat cytomegalovirus (CMV) infections of the eye and body.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Take it with food. Do not open or crush the capsules. Take your medicine at regular intervals. Do not take your medicine more often than directed. Take all of your medicine as directed even if you think you are better. Do not skip doses or stop your medicine early.
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.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
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.
What should I watch for while using this medicine?
Visit your doctor or health care professional for regular check ups. Discuss any new symptoms with your doctor. You will need to have important blood work done while on this medicine. If you have a CMV eye infection have your eyes checked every 4 to 6 weeks.
Drink 6 to 8 glasses of water or fluids daily while taking this medicine to help prevent side effects.
This medicine may cause birth defects to the unborn child if taken during pregnancy. Use contraception while taking this medicine. Males must use barrier contraception during therapy and for 90 days after stopping this medicine. If you think you may have become pregnant and are taking this medicine, contact your doctor right away.
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.
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