Acyclovir 1200mg SR Tablets

Product Introduction

Acyclovir 1200mg is a sustained-release antiviral used for shingles in people with a functioning immune system. It helps control varicella-zoster virus during an outbreak but does not remove dormant virus from the body.

How to use

Swallow the sustained-release tablet whole with water at regular times. Do not crush or chew it or substitute it tablet for tablet for conventional acyclovir. Start outbreak treatment promptly and maintain adequate fluid intake unless fluid restriction is part of your care.

How it works

Virus-infected cells convert acyclovir to its active form. It inhibits viral DNA polymerase and interrupts viral DNA synthesis, limiting replication of susceptible herpes viruses.

Side effects

Headache, nausea, vomiting, abdominal discomfort and diarrhoea can occur. Reduced urine output, severe confusion, unusual drowsiness or a severe skin reaction needs prompt assessment.

Important information

Kidney impairment, dehydration and medicines that can injure the kidneys increase toxicity risk. A different dose or interval may be needed with reduced kidney function. Shingles involving the eye or ear, widespread lesions or significant immune suppression needs prompt assessment rather than routine oral treatment alone.