Description
After absorption, valaciclovir is converted into aciclovir. This blocks viral DNA production, limiting the virus’s ability to multiply and helping control the infection.
What it is used for
Valaforce 500 contains 500mg of valaciclovir, which is used to treat shingles, cold sores and herpes simplex infections, including genital herpes. They may also be prescribed to suppress recurrent herpes infections.
Treatment does not completely prevent herpes transmission. Avoid sexual contact during genital herpes symptoms and follow advice on safer sex.
Side effects
Headache and nausea are very common. Other recognised effects include dizziness, vomiting, diarrhoea, itching and skin sensitivity to sunlight.
Seek urgent medical help for facial or throat swelling, breathing difficulties, confusion, hallucinations, seizures, markedly reduced urination, or a widespread rash with fever and swollen glands. This list is not exhaustive.
Do not take valaciclovir if allergic to valaciclovir or aciclovir. Kidney problems, dehydration and medicines affecting kidney function require particular attention. Maintain adequate fluid intake, following any prescribed fluid restrictions.
Recommended dosage
Examples from UK reference information for adults with normal kidney function include:
- Genital herpes: 500 mg twice daily; recurrent episodes usually require 3–5 days, while first episodes may require up to 10 days.
- Shingles: 1,000 mg three times daily for seven days.
- Cold sores: 2,000 mg twice in one day, normally 12 hours apart.
These are condition-specific reference regimens, not universal instructions. Kidney impairment or reduced immunity can change the dose or duration. Follow the prescription and doctors’ advice.
Storage guidelines
Store in a cool, dark place. Keep out of children’s sight and reach and do not use after expiry.
