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Valtrex is an antiviral drug. It slows the growth and spread of the herpes virus so that the body can fight off the infection. Valtrex will not cure herpes, but it can lessen the symptoms of the infection. It is used to treat infections caused by herpes viruses in adults and children. Illnesses caused by herpes viruses include genital herpes, cold sores, shingles, and chickenpox.
Valtrex is used to treat cold sores in children who are at least 12 years old, and to treat chickenpox in children who are at least 2 years old.
Valtrex is the brand name for valacyclovir, an antiviral drug used to treat infections caused by certain types of viruses.In children, it’s used to treat cold sores (in kids over 12) and chicken pox (in children over age 2).
Valtrex is not a cure for herpes, but it can help reduce your symptoms by slowing the growth and spread of the virus.
VALTREX Caplets are indicated for treatment of cold sores, generic valtrex used to treat the outbreak of genital herpes was approved by the FDA June 23, 1995.
Valtrex generic is an antiviral medication used to treat infections with herpes zoster (shingles), herpes simplex genitalis (genital herpes), and herpes labialis.
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Valtrex Side Effects
Common Side Effects of Valtrex
Let your doctor know if any of these side effects persist or get worse.
Serious Side Effects of Valtrex
Tell your doctor immediately if you develop any of these symptoms.
Mental/mood changes (like agitation, confusion, or hallucinations)
Shaky or unsteady movements
Changes in the amount of urine
Although rare, Valtrex can cause a life-threatening disorder that affects the blood cells, kidneys, and other parts of your body.
This is more likely to occur in patients with a weak immune system because of HIV disease, a bone marrow transplant, or kidney transplant.
Get medical help right away if you develop any of these very serious side effects:
A slow, fast, or irregular heartbeat
Bloody or dark urine
Severe stomach pain
Jaundice (yellowing of skin or eyes)
Sudden vision changes
Loss of consciousness
Valtrex is available in oral tablet form, in 500 mg and 1gram.
This medication works best if you take it at the very first sign on an outbreak. Delaying treatment can lessen the effectiveness of Valtrex.
For shingles or chickenpox, take the drug as soon as a rash appears. For cold sores or genital herpes, take the medication at the first sign of an outbreak or when you feel burning, tingling, or itching.
Valtrex works best when the mediation is at constant levels in your system, so take it at evenly spaced intervals as prescribed by your doctor.
The frequency and intervals of your dose depend on what you’re taking it for.
For shingles: every eight hours (three times a day), for seven days
For genital herpes: twice a day for five to 10 days
These are general guidelines; follow the directions on your prescription label carefully.
Continue to take Valtrex until the full prescription amount is finished. Do not alter the dose or stop the medication without talking to your doctor.
Do not give this medication to a child without a prescription.
Seek emergency medical attention or call a poison help line in case of an overdose of Valtrex.
Overdose symptoms may include:
Changes in the amount of your urine
A loss of consciousness or seizures
Missed Dose of Valtrex
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose.
Do not “double up” on this medication to make up for a missed dose.
Cold Sores (Herpes Labialis): The recommended dosage of VALTREX for treatment of cold sores is 2 grams twice daily for 1 day taken 12 hours apart. Therapy should be initiated at the earliest symptom of a cold sore (e.g., tingling, itching, or burning).
Genital Herpes: Initial Episode: The recommended dosage of VALTREX for treatment of initial genital herpes is 1 gram twice daily for 10 days. Therapy was most effective when administered within 48 hours of the onset of signs and symptoms.
Recurrent Episodes: The recommended dosage of VALTREX for treatment of recurrent genital herpes is 500 mg twice daily for 3 days. Initiate treatment at the first sign or symptom of an episode.
Suppressive Therapy: The recommended dosage of VALTREX for chronic suppressive therapy of recurrent genital herpes is 1 gram once daily in patients with normal immune function. In patients with a history of 9 or fewer recurrences per year, an alternative dose is 500 mg once daily.
In HIV─1─infected patients with a CD4+ cell count greater than or equal to 100 cells/mm3, the recommended dosage of VALTREX for chronic suppressive therapy of recurrent genital herpes is 500 mg twice daily.
Reduction of Transmission: The recommended dosage of VALTREX for reduction of transmission of genital herpes in patients with a history of 9 or fewer recurrences per year is 500 mg once daily for the source partner.
Herpes Zoster: The recommended dosage of VALTREX for treatment of herpes zoster is 1 gram 3 times daily for 7 days. Therapy should be initiated at the earliest sign or symptom of herpes zoster and is most effective when started within 48 hours of the onset of rash.