Acyclovir (Zovirax)
$0.26
Zovirax contains Aciclovir and treats herpes infections including cold sores, genital herpes, shingles and chickenpox.
Drug Information
12 reviews for Acyclovir (Zovirax)
Zovirax contains Acyclovir.
Acyclovir (also spelled aciclovir) is an antiviral medicine. It treats infections caused by the herpes family of viruses, including cold sores, genital herpes, shingles and chickenpox.
It does not get rid of the virus completely, but it helps sores heal faster, eases pain and lowers the chance of passing the virus on. Taken every day, it can also help stop outbreaks coming back.
What is it used for?
- Genital herpes, first outbreak and repeat outbreaks
- Preventing frequent genital herpes outbreaks
- Shingles (herpes zoster)
- Chickenpox, in some people
- Severe cold sores
How does it work?
Herpes viruses need to copy themselves to spread. Acyclovir is taken up by infected cells and blocks the virus from copying its DNA. This stops the virus spreading while your immune system clears the outbreak.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- Tell your doctor if you have kidney problems. Your dose may need to be lower, and you should drink plenty of water.
- Tell your doctor if you are pregnant, trying for a baby or breastfeeding.
- These medicines do not cure herpes. The virus stays quietly in the body and can come back, but treatment makes outbreaks shorter and milder.
- Herpes can spread through skin-to-skin contact even when you have no sores. Avoid sex during an outbreak and use condoms at other times.
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Zovirax can cause side effects, but not everybody gets them.
Common side effects
- Headache
- Feeling sick (nausea) or diarrhoea
- Feeling dizzy or tired
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- Passing much less urine than usual, or pain in your lower back or side (possible kidney problems)
- Confusion, seeing or hearing things that are not there, or shaking (more likely in older people or those with kidney problems)
- Signs of an allergic reaction, such as a rash, swelling of the face or lips, or trouble breathing
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take it exactly as your doctor tells you. It is often taken 3 to 5 times a day.
- Swallow the tablets with a glass of water. You can take them with or without food.
- Start as soon as you notice the first signs, such as tingling, itching or small blisters. It works best when started early.
- Drink plenty of water while you take it.
- Common adult doses: genital herpes 400 mg three times a day for 5 to 10 days; shingles 800 mg five times a day for 7 days. Your doctor will choose the right dose for you.
If you miss a dose: Take it as soon as you remember. If it is nearly time for your next dose, skip the missed one. Never take two doses at once.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QWhen should I start taking Zovirax?
- A
As early as possible, ideally within 1 to 2 days of the first tingle or blister (within 3 days for shingles). The earlier you start, the better it works.
- QWill Zovirax cure my herpes?
- A
No. It controls outbreaks and helps them heal faster, but the virus stays in the body and can come back.
- QCan I take Zovirax every day to prevent outbreaks?
- A
Yes. If you get outbreaks often, your doctor may suggest a lower daily dose, such as 400 mg twice a day.
- QWhy do I need to drink more water with Zovirax?
- A
Plenty of water helps your kidneys get rid of the medicine and prevents kidney problems.

Evelyn Gupta –
I found Zovirax on this site pretty quickly. The listing was easy to understand and nothing felt confusing. The outer box was discreet and the inside was well arranged. Good service, will reorder when I need to.
Tunde Allen –
A friend suggested this site, so I ordered Acyclovir here. It was what I expected when I opened it. And the parcel arrived a day or two sooner than I figured.
Sameer Moyo –
Just got my order and everything went well. The Acyclovir I ordered was packed neatly and nothing was damaged. The delivery took about as long as I was told. I would order here again.
Oscar Henderson –
Decided to order Acyclovir here and it went smoothly. Prices here are easy on the pocket. Another good thing: good communication, I always knew what was happening with my order. Everything was in order when I opened the box. Great experience, I have already bookmarked the site.
Zaid Robinson –
The item looked exactly like the listing. The parcel reached me without any delays. Everything on the product page was clear, so I knew what I was getting. I am satisfied and will come back for my next order.
Yasin Gonzalez –
A friend told me about this site, so I gave it a go. The quality looked good to me. Will be using this site again.
Amara Colombo –
I needed Acyclovir and this was the easiest place I found to order it. My order showed up within the timeframe I was given. No complaints about the product. The price was fair compared to other places I checked. Highly satisfied with the service.
Elijah Eriksson –
Tried this site for the first time and had a good experience. The packing was discreet and tidy. I found the cost to be better than what I saw elsewhere.
Daria Bailey –
The layout makes it easy to find what you are after. What arrived was just as listed on the site. Five stars from me.
Nora White –
First time ordering Acyclovir online and this site made it easy. Delivery was quicker than I thought it would be.
Daniel Said –
Writing this after my latest order from the site. I was happy with how carefully it was packed.
Oluwaseun Khumalo –
I needed to place an order in a hurry and this site made it easy. The website was easy to use and I found what I needed quickly. Another good thing: reasonably priced and the discount at checkout was a nice touch. Got it faster than I was expecting, which was nice. Would not hesitate to use this site again.