Valtrex Oral

Valtrex Oral Side Effects

Nausea, vomiting, fatigue, headache, dizziness, stomach pain, painful periods may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

• mental/mood changes (e.g., agitation, hallucinations)
• confusion
• speech problems
• shaky/unsteady movement
• vision changes

Tell your doctor immediately if any of these rare but very serious side effects occur:

• seizures
• loss of consciousness
• signs of other infections (e.g., fever, persistent sore throat)

This medication may rarely cause a blood disorder (thrombotic thrombocytopenic purpura) or a severe kidney problem (hemolytic uremic syndrome). These problems are more likely to occur if you have HIV disease or if you have had a bone marrow transplant or an organ transplant. Tell your doctor immediately if any of these rare but very serious side effects occur:

• change in the amount of urine
• easy bruising/bleeding
• unusual fever

A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include:

• rash
• itching/swelling (especially of the face/tongue/throat)
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. In the US, you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088.

In Canada, you may report side effects to Health Canada at 1-866-234-2345.