Valtrex
Valaciclovir 500mg and 1000mg film-coated tablets, used for herpes zoster, herpes simplex and genital herpes. A prodrug converted to aciclovir.
- Category
- Antivirals
- Active ingredient
- Valaciclovir
- Route
- Oral use
- Form
- Film-coated tablet
- Strengths
- 500 · 1000mg
You will receive a quality generic equivalent, depending on stock.
No prescription needed: we place your order for Valtrex on your behalf.
Valtrex details
- Conditions
- Herpes Zoster · Herpes Simplex · Genital Herpes
- Therapeutic class
- Antiviral Agent
- Pharmacological class
- Nucleoside analogue
- Contraindications
- hypersensitivity to valaciclovir
- Precautions and warnings
- maintain adequate fluid intake; use with caution in elderly patients
- Minor side effects
- headache; nausea
- Moderate side effects
- dizziness; abdominal pain
- Dosage forms
- Film-coated tablet
- Administration route
- Oral use
- Originator
- GSK
- Onset Time
- 1–2 hours
- Duration
- 8–12 hours
- Storage instructions
- Store at room temperature.
- Drug interactions
- nephrotoxic agents
- Age restrictions
- Dose adjustment required for patients with renal impairment and the elderly.
Serious side effects
renal impairment, requires immediate medical attention; neurological symptoms, requires immediate medical attention
Patient summary
Valaciclovir 500mg and 1000mg film-coated tablets, used for herpes zoster, herpes simplex and genital herpes. A prodrug converted to aciclovir.
Mechanism of action
Valaciclovir is a prodrug of acyclovir. It is converted rapidly to acyclovir in the body, which selectively inhibits viral DNA polymerase, thereby interrupting DNA synthesis in herpes viruses.
Pregnancy and breastfeeding
Pregnancy: Use only if clearly needed. Breastfeeding: Use with caution; monitor the infant.
What you will receive
Valtrex is the originator brand name, made by GSK. We use it here to identify the medicine only; we are not affiliated with GSK and do not ship the original Valtrex.
- You receive a generic equivalent: the same active ingredient (Valaciclovir) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
- The exact brand supplied depends on what is in stock at the dispatching warehouse.
- A regulated generic matches the original ingredient for ingredient by legal standard.
About Valtrex
Valtrex is the primary brand name for valaciclovir, an antiviral used in the management of Herpes Zoster, Herpes Simplex and Genital Herpes. This treatment comes as a tablet available in 500mg and 1000mg strengths. It assists in inhibiting viral replication to reduce the duration of outbreaks.
Buying Valtrex online
Generic valaciclovir, often manufactured in India, offers a cost-effective alternative to the original GSK product for patients managing these viral conditions. For expats or travellers in regions where local supply can be inconsistent, these options support consistent therapeutic management. This medication is best used under a doctor’s care for proper monitoring.
Frequently asked questions
Is the Valtrex on SGMeds a generic?
Yes. SGMeds ships a generic with the same active ingredient (valaciclovir) at the strength you choose, not the original Valtrex made by GSK. We use the brand name so you can find the medicine, and the generic's manufacturer varies with stock.
What is the price of Valtrex in Singapore dollars?
Valtrex comes in 500 and 1000mg strengths, in packs of 12 to 90 tablets. Each option's price is shown on this page in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs work out cheaper per tablet.
Payment and prices →What is Valtrex used for?
Valtrex is used for shingles (herpes zoster), herpes simplex and genital herpes.
Can Valtrex cause side effects?
Yes. The most common side effects of valaciclovir are headache and nausea. Less common ones are dizziness and abdominal pain. Serious side effects include renal impairment and neurological symptoms. Get medical help straight away if you notice one of these serious effects.
Can I take Valtrex with other medicines?
Valaciclovir can interact with medicines that can harm the kidneys (nephrotoxic agents). Before you start Valtrex, tell your doctor or pharmacist about any medicines, supplements or herbal remedies you take.
Can I buy Valtrex over the counter in Singapore?
Yes, online. SGMeds does not ask for a prescription to order Valtrex: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Where can I buy Valtrex in Singapore?
You can order Valtrex here on SGMeds: choose the strength and pack, then check out. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.
How ordering works →