Zovirax (Acyclovir)

Zovirax
4.119 ratingsReviews
Generic:
Acyclovir
Indications:
herpes
Analogs:
Aciclovir Valacyclovir Valtrex Famciclovir Famvir Penciclovir Denavir Docosanol Abreva Sitavig Xerese
Buy oral Zovirax (Acyclovir) 200/400/800 mg online. It is prescribed for shingles, genital herpes, and chickenpox-ask your clinician if you need treatment for cold sores, as Zovirax topical cream is typically used instead.
In stock: 10 packs
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Dosages

Zovirax 200 mg

Quantity Price per tablet You save Total price
180 $0.59 - $107.00
360 $0.52 $26.00 $188.00

Zovirax 400 mg

Quantity Price per tablet You save Total price
60 $1.47 - $88.00
90 $1.32 $13.00 $119.00
120 $1.27 $24.00 $152.00
180 $1.17 $54.00 $210.00
270 $1.12 $94.00 $302.00
360 $1.10 $132.00 $396.00

Zovirax 800 mg

Quantity Price per tablet You save Total price
30 $4.67 - $140.00
60 $3.52 $69.00 $211.00
90 $3.16 $136.00 $284.00
120 $2.98 $202.00 $358.00
180 $2.79 $338.00 $502.00
270 $2.66 $541.00 $719.00
360 $2.60 $745.00 $935.00

Manufacturers

Aliud Pharma GmbHApotex Inc.Atlantic Pharmaceuticals, Inc.Cipla LimitedGlaxoSmithKlineLaboratorios Normon S.A.ratiopharm GmbHSandozTeva Canada LimitedZenlabs Pharmaceutical Inc.

Payment & Shipping

Package Example

Your order is carefully packed and ships within 24 hours. Here is what a typical package looks like.

Sized like a regular personal letter (9.4x4.3x0.3 inches), with no indication of what is inside.

Front View
Front View
Side View
Side View
Back View
Back View
Shipping Times
Shipping MethodEstimated delivery
Express Free for orders over $300.00Estimated delivery to the U.S.: 4-7 days
Standard Free for orders over $200.00Estimated delivery to the U.S.: 14-21 days
EMSUSPS
Payment Methods
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Discount Coupons

  • Independence Day - July 4, 2026 10% JULY410
  • Labor Day - September 7, 2026 7% LABOR07
  • Thanksgiving - November 26, 2026 9% THANKS09

FAQ

In the United States, oral acyclovir tablets require a prescription when purchased from local pharmacies. Our store policy allows you to order these tablets without a prescription and have them sent by mail.

Store acyclovir tablets at 59°F to 77°F in a dry place, protected from light and moisture. Keep them in their labeled package and out of reach of children.

Not necessarily. Products can contain the same active ingredient, acyclovir, while using different inactive ingredients, coatings, colors, or packaging. Check the label on the received package if you need to avoid a particular excipient or have had a previous reaction.

During pregnancy, acyclovir should be used only after an individual assessment of the expected benefit and potential fetal risk. Acyclovir passes into breast milk, so caution is advised during breastfeeding; the treatment indication, dose, and infant's circumstances should be considered with a clinician.

Description

Note: Images in the description are provided for informational purposes and may differ from the actual appearance of the product. Please refer to the product name, strength, ingredients, and dosage form.

About Zovirax (Acyclovir)

Acyclovir is an antiviral medicine used to help treat infections caused by herpes viruses, including herpes simplex viruses (HSV) and varicella-zoster virus (VZV). It works by slowing the growth and spread of the virus. Acyclovir does not eradicate these viruses from the body, but it can help symptoms improve faster when taken as prescribed.

Acyclovir

What oral acyclovir tablets/capsules are used for

  • Shingles (herpes zoster)
  • Genital herpes (initial and recurrent episodes)
  • Chickenpox (varicella)

Zovirax is available in different forms

The brand name Zovirax (acyclovir) and generic acyclovir may be available in multiple dosage forms. Do not mix instructions between forms.

  • Oral: tablets, capsules, and oral suspension
  • Topical: cream 5% and ointment 5%
  • IV (hospital use): acyclovir for injection (intravenous)

When to use tablets vs cream vs ointment

Form Where/how it's used When it's typically chosen Labeled use
Oral acyclovir (tablets/capsules/suspension) Taken by mouth When systemic treatment is needed (e.g., shingles, chickenpox, genital herpes) Shingles, genital herpes (initial/recurrent), chickenpox
Zovirax Cream 5% Applied to affected area on the lips/face only (not in eyes, mouth, nose, or genitals) For recurrent cold sores/fever blisters; start as early as possible Recurrent herpes labialis (cold sores) in immunocompetent adults and adolescents ≥12
Zovirax Ointment 5% Applied to skin (cutaneous use; not in eyes) For certain HSV skin or mucosal outbreaks when this form is specifically prescribed; not recommended for routine cold sores on the lips Initial genital herpes; limited mucocutaneous HSV in certain immunocompromised patients

Why Zovirax comes as both tablets and capsules

Acyclovir has been available in different oral dosage forms. Historically, 200 mg was commonly supplied as capsules, while 400 mg and 800 mg were commonly supplied as tablets. The key difference is the dosage form and available strengths, which affects convenience (how many units you need per day).

For example, an 800 mg dose can reduce pill count compared with taking multiple 200 mg units.

When 800 mg is used

Oral acyclovir 800 mg is commonly used in labeled regimens for shingles (herpes zoster) and chickenpox (varicella). Your prescriber selects the dose and schedule based on the infection, age/weight, kidney function, and clinical severity.

Zovirax vs Valtrex (acyclovir vs valacyclovir)

Feature Zovirax / Acyclovir Valtrex / Valacyclovir
What it is Acyclovir (active antiviral) Valacyclovir (prodrug converted to acyclovir)
Dosing convenience Often more frequent dosing for some indications Often less frequent dosing for some indications
Cold sores (herpes labialis) Topical cream is the intended option; oral acyclovir may be used off-label if prescribed Oral valacyclovir has a labeled regimen for cold sores
Cost & availability Often lower-cost due to broad generic availability May be more convenient but can be higher cost depending on market

Dosing table

The table below summarizes commonly referenced labeled regimens. If a form is not used or not labeled for a condition, it is shown as a dash.

Condition Oral acyclovir (this product) Zovirax Cream 5% Zovirax Ointment 5%
Cold sores
(herpes labialis)
- (topical cream is the intended option for cold sores) Apply 5 times daily for 4 days
Start as early as possible.
-
Fever blisters
(same as cold sores)
- Apply 5 times daily for 4 days -
Chickenpox
(varicella)
Adults / >40 kg: 800 mg 4 times daily for 5 days
Children ≥2 years: 20 mg/kg per dose 4 times daily for 5 days (max 800 mg per dose)
- -
Initial genital herpes - - Apply sufficient quantity to cover all lesions every 3 hours (6 times daily) for 7 days
Limited mucocutaneous HSV in certain immunocompromised patients - - Apply sufficient quantity to cover all lesions every 3 hours (6 times daily) for 7 days

How to take oral acyclovir

  • Take exactly as prescribed. Your dose, schedule, and duration depend on the infection and kidney function.
  • Stay well hydrated (especially important for older adults and people with kidney disease).
  • If you miss a dose, follow your prescriber's instructions; do not double up unless directed.

Precautions

  • Kidney disease / dehydration: higher risk of kidney-related side effects-your prescriber may adjust the dose.
  • Drug interactions: tell your clinician about all medicines, including OTC and supplements. Some drugs can affect kidney function.
  • Pregnancy/breastfeeding: discuss risks and benefits with your clinician.

Possible side effects

Side effects vary by person and dose. Contact a clinician promptly if you develop signs of an allergic reaction (rash/hives, swelling of the face/lips/tongue, trouble breathing), severe confusion, hallucinations, or seizures.

How to store oral acyclovir

  • Store at 68°F to 77°F (20°C to 25°C); excursions permitted between 59°F to 86°F (15°C to 30°C).
  • Protect from moisture and keep out of reach of children.
  • Do not use after the expiry date on the carton.
Medically reviewed by
Brian Holtry
MD, infectious diseases specialist and medical writer
Updated August 11, 2026

Customer questions

Asked by Edward A, Denver, United States

I'm in Denver. Can I confirm whether acyclovir tablets can be shipped to my ZIP code before I place an order?

Answered by Support team

Yes. Enter your Denver ZIP code during checkout to see whether this product is available for shipment to your address before completing the order.

Asked by William J, Detroit, United States

I live in Detroit and am concerned about packages sitting in transit. Are acyclovir tablets suitable for ordinary shipping?

Answered by Support team

Tablets are generally suitable for ordinary mail transport when packed to protect them from moisture, light, and physical damage. When they arrive, check that the package is intact and store the tablets according to the labeled instructions; do not use them if they appear damaged or altered.

Asked by Rachel, Houston, United States

Will the acyclovir package include an English leaflet?

Answered by Support team

The leaflet language can vary, so it cannot be guaranteed in advance. Check the received package label and enclosed materials before use, especially for dosing instructions and warnings.

Asked by Carlos, San Diego, United States

My work schedule makes it easier to take medicines with meals. Can I take my acyclovir tablets with food?

Answered by Support team
Medical reviewed by Brian Holtry

Acyclovir tablets may be taken with or without food because food does not meaningfully affect absorption. Drink plenty of fluids during treatment, particularly if you are at risk of dehydration or have reduced kidney function.

Product specifications

Active ingredientAcyclovir
Drug classAntiviral
Dosage formTablet
Available strengths200 mg, 400 mg, 800 mg
RouteOral
StorageStore at 59°F to 77°F in a dry place, protected from light and moisture.
ATC codeJ05AB01

Regulatory information

More information