What is Aciclovir?
Aciclovir is the generic form of Zovirax. Being a generic medicine, it's typically a bit more affordable, yet it delivers the same results. Aciclovir is commonly prescribed for infections caused by the herpes virus. It works to clear up visible symptoms from the infection, leaving your skin looking healthy. You might also find this medication used for treating other viruses such as shingles or chickenpox.
The cream is typically prescribed for treating cold sores, while the tablets are used to directly address herpes and genital herpes. Aciclovir is also available as an injection, but this is generally given in a hospital setting. You don't always need a prescription for these treatments. Aciclovir can often be purchased over the counter at a supermarket or pharmacy.
How does Aciclovir work?
Aciclovir gets its name from its active ingredient, aciclovir, which works by stopping the virus from replicating its DNA. This helps lessen the severity of the infection and prevents the virus from spreading.
While aciclovir won't cure herpes, it can ease the pain and discomfort and help any sores heal more quickly. It's equally effective at preventing future outbreaks as it is at treating current ones.
What doses of Aciclovir are there?
Aciclovir comes in just two forms. The tablets are available in a 200 mg dose, and the cream is provided in a tube containing 5% aciclovir.

- Aciclovir is available as a cream or tablet to treat herpes.
- It's used to treat infections caused by the herpes virus.
- The active ingredient in both formulas works by preventing the virus from spreading.

Aciclovir isn't right for everyone, and there are a few things you should know when using it.
Here's all the official information on it. If anything isn't clear, just let our clinician know, and they can discuss it with you.
Useful Links:
- official info: https://www.medicines.org.uk/emc/product/4334/pil

Q: How is Aciclovir different to other treatments for herpes?
Most antiviral treatments for herpes and cold sores have a similar type of active ingredient. The key difference is that not all of them come in forms like creams and oral suspensions, as Aciclovir does.
Q: Is Aciclovir similar to any other treatments?
Aciclovir is the generic version of Zovirax. Both have the same active ingredient, so they function in the same way. The main difference is that branded products like Zovirax can be a bit more costly than generic options.
Zovirax is produced by a particular company, so it's considered a branded product. Some people like using brand names because they prefer them, while others are content with a treatment that's basically the same but more affordable.
Q: What type of Aciclovir should I use?
For cold sores, it's generally best to use Aciclovir 50 mg cream. The tablets are more effective for treating genital herpes and can help prevent future outbreaks. Our clinicians can help you choose the right treatment for your needs.
Q: How effective is Aciclovir?
A clinical study conducted in 2002 found that Aciclovir is very effective at alleviating herpes symptoms and preventing future outbreaks. The study involved 131 adults of both sexes who had the herpes virus.
For those treated with Aciclovir, lesions typically lasted four days. In contrast, the group given a placebo (a dummy tablet) experienced lesions for up to six days. This indicates that Aciclovir helps shorten the duration of genital herpes symptoms.
It's important to understand that Aciclovir doesn't eliminate the herpes virus; it simply prevents it from spreading. Even after taking this medication, the herpes virus remains in your body, but Aciclovir stops it from multiplying.
Q: Do I need a prescription for Aciclovir?
Yes, you'll need a prescription to get Aciclovir online. This ensures the treatment is safe and suitable for you. Herpes can be difficult to manage, so it's always a good idea to consult a medical professional before choosing the right medication.

How to take Aciclovir
We always recommend taking this medication as advised by our clinician for the best results. However, if you have any questions you can always refer to the treatments product information. This should be included in the box with your treatment. [1]
Aciclovir tablet instructions

Aciclovir cream instructions

How long does it take Aciclovir to work?
The length of treatment can differ based on your individual situation and how severe your infection is. You should begin to notice improvements from Aciclovir within five days of starting it. If you don't feel any better after five days, please get in touch with our clinician.
What should I do if I make a mistake when taking Aciclovir?
Aciclovir is generally safe, but it's important not to take too much over a few days. If you think you've taken too much, get in touch with our clinician or a healthcare professional for advice as soon as possible. If you're asked to come in for an appointment, remember to bring the product box and leaflet with you.
What if I forget to take Aciclovir?