The dose for valciclovir tablets is 1 tablets twice a day for 5 days.
Swallow the tablets with water, with or without food. If you experience difficulty in swallowing the tablets they may be dispersed in a glass of water (at least 50ml) which should be stirred before drinking.
The two drugs are very similar. After you take Valaciclovir, your body converts it into aciclovir. It has the same effect, but you don’t need to remember to take valaciclovir as frequently as aciclovir.
It is best to start treatment with aciclovir or valciclovir as soon as you know an attack is starting or as soon as you get signs and symptoms of the infection.
Aciclovir and Valaciclovir start working straight away to reduce the severity and duration of an outbreak by one to two days.
If taken within five days of the start of an outbreak should shorten your outbreak by one to two days and make the symptoms less severe. It might even prevent the outbreak if taken early enough.
If you take too many Aciclovir tablets, contact your doctor immediately. Signs of an overdose include effects on the stomach and intestines such as feeling or being sick and effects on the nervous system such as confusion.
Do not take a double dose to make up for a forgotten dose. If you forget to take a dose, take it as soon as you remember it and then take the next dose at the right time.
Common side effects include:
- abdominal pain
Common (occurs in less than 1 in 10 users): dizziness, headache, feeling or being sick, diarrhoea, stomach pain, skin rashes, itching, tiredness, sensitivity to sunlight or artificial light (e.g. sunbeds), fever.
Do not take Aciclovir tablets
• if you areallergic(hypersensitive)toaciclovir, any of the
ingredients in Aciclovir tablets or valaciclovir (see section 6).
Take special care with Aciclovir tablets
• if you havenervous system abnormalities,pleasetell
your doctor before you start treatment with Aciclovir
water whilst taking Aciclovir tablets, especially if you are
elderly or taking doses of 4g a day or higher.
Taking other medicines
Please tell your doctor or pharmacist if you are taking
or have recently taken any other medicines, including medicines obtained without a prescription. Especially:
(used to treat gout), as these increase the concentration of aciclovir.
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This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
mycophenolatemofetil(medicineusedintransplant patients). Care should be taken if you are taking high doses of Aciclovir, as blood levels of both drugs may increase.
ciclosporin(animmunosuppressantdrug).Your doctor may monitor your kidney function.
theophylline(used in asthma and other breathing problems).
zidovudine(used in HIV infection).
Pregnancy and breast-feeding
There is limited information on the use of Aciclovir tablets in pregnancy or breast-feeding. Ask your doctor or pharmacist for advice before taking this medicine.
Driving and using machines
Some side effects such as drowsiness and sleepiness may impair your ability to concentrate and react. Make sure you are not affected before you drive or operate machinery.
Sugar intolerance (200mg tablets only)
If you have been told you have an intolerance to some sugars, contact your doctor before taking this medicine, as it contains a type of sugar called lactose.
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