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Acyclovir 800mg
Medically Reviewed by – Dr. Bailey Morrison, MD
Last Updated on 8 July 2026

Acyclovir 800mg

$1.48 $1.80
Acyclovir is an antiviral drug prescribed to treat infections such as chickenpox, genital herpes, shingles and cold sores, which are caused by herpes viruses. It decreases the growth and spread of herpes virus in the body and helps faster healing of sores. Acyclovir eye ointment is used to treat viral eye infections caused by herpes simplex viruses. Acyclovir is available as tablet, topical cream and eye ointment forms. This medicine may also be used to treat other conditions as determined by your doctor.
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Acyclovir 800mg CouponCoupon DescriptionCoupon Expiry Date
SUNNY28Summer Spectacular Sale2026-07-31
Categories: Anti ViralsTag: Pills

What is Acyclovir 800mg used for?

Acyclovir 800 mg is used in Australia to treat viral infections caused by the herpes virus, including shingles, genital herpes, and severe cold sores. It works by slowing the virus’s growth, helping sores heal faster and reducing pain or itching. While it doesn’t cure the infection, it helps control symptoms, shortens outbreaks, and lowers the chance of the virus spreading.

What are the side effects of Acyclovir 800mg?

Common side effects of Acyclovir 800 mg are generally mild, but some people may experience the following:

  • Headache or dizziness – usually settles on its own

  • Nausea, vomiting, or diarrhoea – drink plenty of fluids

  • Fatigue or general weakness – rest and stay hydrated

  • Skin rash or itching – may indicate mild irritation

  • Changes in mood or confusion – uncommon, seek advice if severe

  • Kidney problems – rare, more likely in people with pre-existing kidney issues

Always consult your doctor if any symptoms persist or worsen.

What is the recommended dosage of Acyclovir?

The dosage of Acyclovir prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label. Take Acyclovir tablet with a full glass of water. It can be taken with or without food. Drink plenty of fluids while you are taking this medication. Apply Acyclovir cream liberally onto the affected area. Do not use this medication in the eyes. Apply a thin line of Acyclovir eye ointment along the inside of the lower eye lid. Wash your hands before and after use.

What if you miss a dose of Acyclovir?

If your physician has instructed or directed you to use Acyclovir medication in a regular schedule and you have missed a dose of this medicine, use it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

What if you overdose on Acyclovir?

Any medication taken in excess can have serious consequences. If you suspect an overdose of Acyclovir, seek medical attention immediately.

What other drugs could interact with Acyclovir 800mg?

It may be noted that drugs other than those listed above may also interact with Acyclovir. Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Acyclovir, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions. Acyclovir can interact with nonsteroidal anti-inflammatory drugs. Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

Where can I buy Acyclovir 800mg over the counter in Australia?

You can request a Acyclovir 800mg over the counter prescription online after a medical consultation with a licensed doctor. Some of the popular, effective and widely used medications are available as Acyclovir alternative.

Can I buy Acyclovir 800mg without a prescription in Australia?

No – Acyclovir 800mg without prescription is not possible as it is a prescription-only treatment which must be prescribed by a doctor or pharmacist. You can purchase Aciclovir medicine through The Independent Pharmacy following an online consultation. Acyclovir alternative can be ordered over the counter but it is recommended to consult a doctor before consuming the medication.

Can you take 800 mg Acyclovir twice a day?

You should only take Acyclovir 800 mg twice daily if prescribed by your doctor. The dosage depends on your infection type and overall health. Taking more than recommended can increase side effect risks. Always follow your doctor’s instructions carefully and do not change the dose without medical guidance.

 How to take Acyclovir 800 mg?

Take Acyclovir 800 mg with a full glass of water, with or without food. Swallow the tablet whole and take it at evenly spaced times each day. It’s important to start treatment as soon as symptoms appear for the best results. Always complete the prescribed course, even if symptoms improve early.

How much does Acyclovir 800 mg cost in Australia?

The cost of Acyclovir 800 mg in Australia varies depending on the brand, pharmacy, and location. Prices are generally affordable, but it’s best to compare local or online pharmacy rates. Some pharmacies may offer discounts or generic options to help lower your overall medication cost.

What is the Acyclovir 800 mg dose for cold sores in Australia?

In Australia, Acyclovir 800 mg is usually prescribed for more serious herpes infections, not mild cold sores. For cold sores, lower doses are often used more frequently. However, if your doctor recommends 800 mg, take it as directed and complete the full course to help the sores heal faster and prevent future outbreaks.

What are the questions to ask your doctor before taking Acyclovir 800mg tablet?

Is it possible for me to use Acyclovir with other drugs? Should certain beverages, foods and other products be avoided when I use Acyclovir? What are the possible drug interactions of Acyclovir? How will Acyclovir work in my body? How should Acyclovir be used? How to reduce the risk of Acyclovir drug interactions and side effects?

Note

The health and medical information provided here is intended to supplement and not substitute for the expertise and judgement of your physician, pharmacists or other health care professional. It should not be understood to indicate that the use of Acyclovir is safe, appropriate or effective for you. Always consult your health care professional before using this, or any other, drug.

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