Valtrex 500 mg Tablets contain Valacyclovir, an antiviral medication used to treat infections caused by the herpes virus family, including herpes simplex virus (HSV) and varicella-zoster virus (VZV). This includes conditions such as cold sores, genital herpes, and shingles (herpes zoster). Valacyclovir works by inhibiting the replication of the virus, helping to control the infection, reduce symptoms, and shorten healing time.

• Effective antiviral activity against herpes viruses

• Reduces duration and severity of outbreaks

• Helps prevent transmission of genital herpes

• Supports faster healing of cold sores and shingles lesions

• Available in convenient once or twice daily dosing for suppression

Valtrex 500 mg is used for:

• Treatment of herpes zoster (shingles) in adults

• Treatment and suppression of genital herpes in immunocompetent individuals and HIV-infected patients

• Reduction of transmission of genital herpes

• Treatment of cold sores (herpes labialis)

• Treatment of chickenpox in children (age and weight-dependent)

• Genital Herpes (initial episode): 1 g twice daily for 10 days

• Genital Herpes (recurrent episode): 500 mg twice daily for 3–5 days

• Suppressive therapy for genital herpes: 500 mg to 1 g once daily

• Cold Sores: 2 g twice in one day (12 hours apart)

• Shingles: 1 g three times daily for 7 days

Dosage adjustments may be required in patients with renal impairment.

• Use with caution in patients with renal impairment or dehydration

• Not recommended for individuals allergic to acyclovir or valacyclovir

• Safety in pregnancy: Should be used only if clearly needed; consult physician

• Can interact with nephrotoxic drugs (e.g., cyclosporine, tacrolimus)

• Ensure adequate hydration during treatment to prevent kidney issues

Common side effects may include:

• Headache

• Nausea

• Stomach pain

• Dizziness

• Fatigue

Rare but serious side effects:

• Kidney dysfunction

• Mental/mood changes (e.g., confusion, agitation, hallucinations)

• Seizures (especially in patients with renal impairment)
  Seek medical attention for any signs of allergic reaction or unusual symptoms.

• Store at 15–30°C (59–86°F)

• Keep away from moisture, direct sunlight, and heat

• Store in a dry place, out of reach of children

Q1: Is Valtrex a cure for herpes?
No, Valtrex is not a cure. It controls the infection, reduces symptoms, and lowers the frequency and severity of outbreaks.

Q2: Can Valtrex be used daily?
Yes, it is often prescribed as daily suppressive therapy for individuals with frequent genital herpes outbreaks or to reduce transmission risk to partners.

Q3: Can Valtrex prevent transmission?
While it reduces the risk of transmission, Valtrex does not eliminate it completely. Safe sexual practices should still be followed.

Q4: How quickly does Valtrex work?
For cold sores and shingles, symptoms often begin to improve within 2–3 days of starting treatment. Early use improves effectiveness.