Zovirax
Aciclovir 200mg, 400mg and 800mg tablets, used for herpes simplex and varicella zoster infection. A nucleoside analogue activated by viral enzymes.
- Category
- Antivirals
- Active ingredient
- Aciclovir
- Route
- Oral use
- Form
- Tablet
- Strengths
- 200 · 400 · 800mg
You will receive a quality generic equivalent, depending on stock.
No prescription needed: we place your order for Zovirax on your behalf.
Zovirax details
- Conditions
- Herpes Simplex · Varicella Zoster Infection
- Therapeutic class
- Antiviral Agent
- Pharmacological class
- Nucleoside analogue
- Contraindications
- hypersensitivity to acyclovir
- Precautions and warnings
- maintain adequate hydration; use with caution in patients with renal impairment
- Minor side effects
- nausea; headache
- Moderate side effects
- fatigue; skin rash
- Dosage forms
- Tablet
- Administration route
- Oral use
- Originator
- GSK
- Onset Time
- 1–2 hours
- Duration
- 4–5 hours
- Storage instructions
- Keep cool and dry.
- Drug interactions
- probenecid
- Age restrictions
- Suitable for all ages with appropriate dosing.
Serious side effects
neurological reactions, requires immediate medical attention; reversible renal impairment, requires immediate medical attention
Patient summary
Aciclovir 200mg, 400mg and 800mg tablets, used for herpes simplex and varicella zoster infection. A nucleoside analogue activated by viral enzymes.
Mechanism of action
Acyclovir is a nucleoside analogue that is phosphorylated by the viral thymidine kinase. The resulting triphosphate inhibits viral DNA polymerase, preventing viral genome replication in herpes-infected cells.
Pregnancy and breastfeeding
Pregnancy: Use only if potential benefit outweighs risk. Breastfeeding: Excreted in breast milk; use with caution.
What you will receive
Zovirax 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 Zovirax.
- You receive a generic equivalent: the same active ingredient (Aciclovir) 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 Zovirax
Zovirax is a product from GSK containing the active ingredient Aciclovir, commonly used to treat Herpes Simplex and Varicella Zoster Infection. This treatment is supplied as a tablet in strengths of 200, 400, and 800mg. It assists in managing viral outbreaks by slowing virus replication, which supports healing and symptom relief for those experiencing these infections.
Buying Zovirax online
Generic Aciclovir, much of it made in India, is a significantly more affordable alternative to the original brand for expats and individuals situated far from a well-stocked pharmacy. These treatment options are best used under the care of a medical professional to ensure appropriate management of viral health.
Frequently asked questions
Do I get the original Zovirax?
No. SGMeds ships a generic with the same active ingredient (aciclovir) at the strength you choose, not the original Zovirax made by GSK. We use the brand name so you can find the medicine, and the generic's manufacturer varies with stock.
How is Zovirax priced?
Zovirax comes in 200, 400 and 800mg strengths, in packs of 10 to 360 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 Zovirax used for?
Zovirax is used for herpes simplex and varicella zoster infection.
What are the side effects of Zovirax?
The most common side effects of aciclovir are nausea and headache. Less common ones are fatigue and skin rash. Serious side effects include neurological reactions and reversible renal impairment. Get medical help straight away if you notice one of these serious effects.
What does Zovirax interact with?
Aciclovir can interact with a gout medicine (probenecid). Before you start Zovirax, tell your doctor or pharmacist about any medicines, supplements or herbal remedies you take.
Do I need a prescription for Zovirax in Singapore?
No. SGMeds does not ask for a prescription to order Zovirax: 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 Zovirax in Singapore?
You can order Zovirax here on SGMeds: choose the strength and pack, then check out. Parcels go to Singapore and Malaysia by Express shipping (tracked, up to 1 week) or Regular shipping (up to 3 weeks).
How ordering works →