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Killing or stopping the growth of viruses
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Aciclovir 400mg tablets
2-3 minutes online assessment to check your eligibility for a treatment
Antiviral
Yes
Aciclovir
Depends on the condition being treated
Killing or stopping the growth of viruses
Headache, dizziness, nausea, vomiting, diarrhea, rash, photosensitivity, fatigue
Patient experiences
Verified reviews from patients across UK.
Excellent customer service from start to finish for registration.
I collected item in person from their London location, it was very easy to...
I really can't recommend Rightangled highly enough, they have everything spot on. Their price's are competitive and the added discounts on top are fantastic...
Never had a problem with this company. Always checking in to make sure my weight loss journey is on track. Pricing is competitive and postal spot on...
I have been with rightangled for over a year. Their customer service is amazing. They always go above & beyond. Nothing is too much trouble. They are so efficient on...
I have been with this company since August and I am so happy I moved companies. The service has been incredible. They have made it so easy and worry free I order and within...
I find right angled brilliant. No nonsense with consistently low prices on weight loss meds. I used to shop around before right angled but don’t feel the need to anymore as their prices are great...
2nd month with Rightangled and the reordering process is very quick and straightforward unlike other providers I have used in the past...
Using their services for more than a year and half. They are just great, any issues has been handled with kindness and professionalism. The order will arrive as expected in..
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Aciclovir 400mg tablets are an antiviral medicine used for herpes simplex infections, herpes zoster (shingles) and varicella zoster (chickenpox). Taken by mouth, they act throughout the body rather than on one patch of skin, which is why tablets are used where a cream would not be enough. They are a medicine that requires a clinician to assess whether they are suitable for you.
Aciclovir is converted into its active form inside cells that are infected, and there it blocks the enzyme the virus uses to copy its DNA. Because that activation happens mainly in infected cells, the medicine acts largely where the virus is. It stops the virus multiplying rather than eliminating it from the body, which is why these infections can recur and why starting treatment early makes the greatest difference.
Take the tablets exactly as directed, spaced evenly through the day, and complete the course even if symptoms improve. Starting within the first 48 to 72 hours of a shingles rash appearing is what gives the best result, so do not delay. Drink plenty of fluid while taking them, since aciclovir is cleared by the kidneys and good hydration matters.
It is for people where a clinician has confirmed the infection and agreed treatment is appropriate. Your clinician needs to know about kidney problems, which often means a different dose, about pregnancy or breastfeeding, and about all other medicines you take.
Nausea, headache, diarrhoea and dizziness are among the reported effects. Seek urgent medical help for shingles affecting the eye, the tip of the nose or the ear, for a rash that becomes widespread, for confusion or drowsiness, or for signs of an allergic reaction. Anyone with a weakened immune system should seek advice early with any of these infections. Shingles can be passed to someone who has never had chickenpox, so avoid contact with newborns, pregnant women and anyone immunosuppressed while the rash is weeping. Our UK pharmacy team can answer questions about this product before you buy.
How soon should I start?
As early as possible, and within the first 48 to 72 hours of a shingles rash for the best result.
Does it cure the infection?
No. It stops the virus multiplying during an outbreak. The virus stays dormant afterwards.
Why drink plenty of fluid?
Aciclovir is cleared by the kidneys, so staying well hydrated is important.
Always read the patient information leaflet supplied with the pack before use.
Medically reviewed and published
This page was medically reviewed by Dr Sohaib Imtiaz, Clinical Lead on Aug 24, 2023, 3:30 pm
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Choose the medicine and dose you are on now, and when you last took it. We will show recommended starting doses for alternatives — including lower options a clinician may prefer. No login or personal details required.
Based on your current dose, you could switch to:
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Guidance only — a clinician must approve any switch. Based on clinical dosing switch guides.
Please read our FAQs page to find out more.
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For assistance, please contact our customer service at info@rightangled.com. We are available Monday to Friday from 8 am to 5 pm. For urgent issues, please do not use this email. Instead, call 111, or dial 999 in case of an emergency.
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