Buy Aciclovir online with free consultation & prescription
Book a quick face-to-face video consultation with a UK certified prescribing pharmacist, nurse, or doctor. If approved, your Aciclovir will be prescribed* and delivered straight to your door within 10-14 working days. Avoid doctor waiting lists. No delays. Just expert care.
Aciclovir is indicated for the treatment of Shingles, Herpes Simplex Virus & Genital Herpes.
*Includes Free Private Prescription & Consultation.
Manufactured by Accord.

Aciclovir doses and pack sizes

Aciclovir
Aciclovir doses and pack sizes
*Your clinician will recommend the right strength and quantity for you during the consultation.
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Aciclovir prices
| Brand/Generic | Form | Dosage | Quantity | Price | Delivery Cost | Consultation Cost |
|---|---|---|---|---|---|---|
| AciclovirGeneric | Tablets | 400mg | 56 | £17.99 | £0.00*(with Core+ Plan) | £0.00 |
| AciclovirGeneric | Tablets | 800mg | 35 | £17.99 | £0.00*(with Core+ Plan) | £0.00 |
| AciclovirGeneric | Tablets | 200mg | 25 | £17.99 | £0.00*(with Core+ Plan) | £0.00 |
FAQs
Answers to popular questions about Aciclovir
What is Aciclovir?
Aciclovir (also spelled aciclovir in the UK) is an antiviral medication used to treat and prevent infections caused by herpes simplex virus (HSV types 1 and 2) and varicella-zoster virus (VZV). It was one of the first effective antivirals and remains widely used. Aciclovir is available as tablets (200 mg, 400 mg, 800 mg), oral suspension, cream (5%), eye ointment (3%), and intravenous infusion. The oral tablets and cream are the most commonly prescribed forms in primary care.
What is Aciclovir used for?
Aciclovir is used to treat genital herpes (initial and recurrent episodes), cold sores (herpes labialis), chickenpox (varicella), shingles (herpes zoster), herpes simplex encephalitis (intravenous), and herpes eye infections (as eye ointment). It is also used for suppressive therapy to reduce recurrent genital herpes outbreaks. Aciclovir cream is available over the counter for cold sores.
How does Aciclovir work?
Aciclovir is a guanosine nucleoside analogue that selectively targets virus-infected cells. It is first activated by viral thymidine kinase, an enzyme found only in herpes-infected cells, and then further phosphorylated by cellular enzymes. The active form, aciclovir triphosphate, inhibits viral DNA polymerase and is incorporated into the viral DNA chain, causing premature chain termination. This selectivity means aciclovir has minimal effect on uninfected human cells, contributing to its excellent safety profile.
What is the usual dose of Aciclovir?
Dosing depends on the condition. For initial genital herpes: 200 mg five times daily for 5 days. For recurrent genital herpes: 200 mg five times daily for 5 days. For suppression: 400 mg twice daily, reviewed every 6–12 months. For shingles: 800 mg five times daily for 7 days. For chickenpox: 800 mg five times daily for 7 days. The five-times-daily regimen can be inconvenient, which is why many prescribers prefer valaciclovir (which offers twice-daily dosing with equivalent efficacy). Aciclovir can be taken with or without food.
What are the side effects of Aciclovir?
Oral aciclovir is very well-tolerated. Common side effects include nausea, vomiting, diarrhoea, and abdominal pain. Headache and dizziness are reported occasionally. Skin rash and photosensitivity are uncommon. At high doses or in patients with renal impairment, aciclovir crystals can precipitate in the kidneys, so adequate hydration is important. Very rarely, neurological side effects (confusion, tremor, hallucinations) can occur, primarily in elderly patients or those with kidney problems. Aciclovir cream may cause mild stinging or dryness at the application site.
Is Aciclovir safe for long-term use?
Yes, aciclovir has been used for long-term suppressive therapy (years) with an excellent safety record. It is one of the most extensively studied antiviral medications. Long-term use does not appear to cause organ damage or cumulative toxicity. Your prescriber should review the need for continued suppression every 6–12 months. Adequate hydration and monitoring of kidney function are advisable for long-term use, particularly in older patients.
Is Aciclovir safe during pregnancy?
Yes, aciclovir has extensive safety data in pregnancy. The Aciclovir in Pregnancy Registry (over 1,000 exposures) showed no increase in birth defects. international guidelines recommend aciclovir for treating genital herpes in pregnancy and for suppressive therapy from 36 weeks’ gestation to reduce the risk of neonatal herpes. Aciclovir is considered compatible with breastfeeding — it is excreted in breast milk but in very low quantities that are unlikely to affect the infant.
How can I get Aciclovir?
You can request Aciclovir through NowPatient by completing a short online consultation with one of our prescribing clinicians. Your clinician will assess your symptoms and history of outbreaks to decide whether Aciclovir is suitable as a treatment course or as suppressive therapy. Consultations are confidential. If treatment is suitable, a prescription is issued and your medication is dispensed by our registered pharmacy and delivered to your door.
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