Reported purpose & perceived effectiveness
- Can't tell
Do not take this medicine if you are allergic to valacyclovir or acyclovir (Zovirax).
If you have certain conditions, you may need a dose adjustment or special tests to safely take this medication. Before taking valacyclovir, tell your doctor if you have:
FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. However, herpes virus can be passed from an infected mother to her baby during childbirth. If you have genital herpes, it is very important to prevent herpes lesions during your pregnancy so that you do not have a genital lesion when your baby is born.
Valacyclovir passes into breast milk and may harm a nursing infant. Do not take this medication without telling your doctor if you are breast-feeding a baby.
Do not give valacyclovir to a child unless it has been prescribed by a doctor.
Older adults may be more likely to have harmful side effects while taking valacyclovir. Talk to your doctor about your specific risk.
Valacyclovir will not prevent the spread of genital herpes. Herpes infections are contagious and you can infect other people even while you are taking with valacyclovir.
Avoid sexual intercourse or use a latex condom to prevent spreading the virus to others. Avoid letting infected areas come into contact with other people. Avoid touching an infected area and then touching your eyes. Wash your hands frequently to prevent passing the infection to others.
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include urinating less than usual or not at all.
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop taking valacyclovir and call your doctor right away if you have any of the following signs of a serious side effect that can harm red blood cells:
Call your doctor at once if you have any of these other serious side effects:
Less serious side effects may include:
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Valacyclovir can be harmful to the kidneys, and these effects are increased when it is used together with other medicines that can harm the kidneys. Before taking valacyclovir, tell your doctor if you are also using:
This list is not complete and there may be other drugs that can interact with valacyclovir. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Valtrex and valacyclovir
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Copyright 1996-2004 Cerner Multum, Inc. Version 2.05. Revision date 8/23/04