Aciclovir (cream & tablets)

Images for illustrative purposes only

  • Anti-viral
  • Approved by MHRA
  • Cream and oral tablet
  • Prescribed by UK pharmacists

Aciclovir (cream & tablets)

Category:Cold Sore

Aciclovir is an antiviral medication used to treat cold sores (also known as oral herpes). Cold sores are caused by the herpes simplex virus (HSV), and aciclovir works by stopping the virus from replicating and spreading to other cells.




Fetching Data...

All inclusive services

No extra costs

Free tracked delivery

Delivered in plain packaging

Prescription included

No consultation charges

Frequently Asked Questions for Aciclovir (cream & tablets)

How does Aciclovir work for treating cold sore?

Aciclovir works by blocking the action of an enzyme called DNA polymerase that is essential for the herpes simplex virus (HSV) to replicate and spread in the body. When the virus infects a cell, it inserts its genetic material into the cell's DNA and hijacks the cell's machinery to replicate itself. Aciclovir is a prodrug, which means that it is converted into an active form inside the infected cell by viral enzymes. Once activated, aciclovir interferes with the ability of the viral DNA polymerase to create new viral DNA strands, thereby stopping the virus from replicating and spreading to other cells.

By preventing the virus from multiplying, aciclovir can reduce the severity and duration of a cold sore outbreak, as well as help prevent future outbreaks. However, it's important to note that aciclovir cannot completely cure cold sores or the herpes simplex virus, as the virus can remain dormant in the body and reactivate at a later time.


What is the difference between aciclovir tablets and cream?

Aciclovir cream and aciclovir tablets are both forms of the same medication that is used to treat cold sores caused by the herpes simplex virus (HSV). However, there are some differences in the way they are used and their effectiveness.

Aciclovir cream is a topical medication that is applied directly to the affected area of the skin, usually around the lips or mouth. It is most effective when applied as soon as possible after the first signs of a cold sore appear, such as tingling or itching. The cream is absorbed into the skin and works by stopping the virus from replicating and spreading to other cells.

Aciclovir tablets are taken orally and are absorbed into the bloodstream to reach the affected cells throughout the body. They are usually prescribed for more severe or frequent outbreaks of cold sores, or for people with weakened immune systems. Aciclovir tablets can also be used as a preventative measure to reduce the frequency and severity of cold sore outbreaks.

In general, aciclovir tablets are more effective than aciclovir cream for treating cold sores, as they can target the virus more effectively throughout the body. However, tablets may have more side effects than the cream, and they may not be suitable for everyone. It's important to speak with a healthcare professional to determine the best treatment approach for your specific situation.

Can I take aciclovir with my other medications?

Whether or not you can take aciclovir with your other medications will depend on the specific medications you are taking, as well as your medical history and overall health. It's important to speak with a healthcare professional before taking aciclovir or any other medications, especially if you are currently taking other medications, to ensure that it is safe and effective for you to do so.

Some medications can interact with aciclovir, affecting its effectiveness or increasing the risk of side effects. For example, some medications used to treat HIV or AIDS can interact with aciclovir, as can medications that affect the kidneys, such as certain antibiotics or diuretics.

Additionally, it's important to note that aciclovir can have side effects, such as headache, nausea, diarrhea, and dizziness, which can be exacerbated by other medications. Some people may also be allergic to aciclovir, so it's important to watch for any signs of an allergic reaction, such as hives, difficulty breathing, or swelling of the face, lips, tongue, or throat.

Overall, it's important to consult with a healthcare professional before taking any medication, including aciclovir, to ensure that it is safe and appropriate for your individual needs and medical history.