Famciclovir is taken orally and can be taken with or without food. You should follow your doctor’s instructions carefully when taking famciclovir as the dose varies depending on your specific circumstances.
Your prescription will tell you how often to take your tablets and for how long. The dose, how often you have to take the tablets and for how long depends on whether you have a normal or reduced immune system and whether you are dealing with a first outbreak, a subsequent outbreak or want to prevent future outbreaks.
For recurrent infections, you would normally be told to take 2 famciclovir 500mg tablets and then another 2 tablets 12 hours later. You could take 2 tablets in the morning, and then another 2 tablets in the evening, for example. Swallow them whole with water, and you can take them with or without food.
It is important that you continue your course of medication even if your symptoms have cleared up.
What should I do if I take too many tablets?
If you take too many tablets or if someone else takes your tablets, you should seek medical advice from your doctor or the emergency department at a hospital immediately. This is because an overdose of famciclovir may affect the function of the kidneys. If someone already has kidney problems it can lead to kidney failure in very rare cases.
What should I do if I forget to take my tablet at the right time?
If you forget to take a dose of famciclovir and it is more than an hour until your next dose is due, take the tablet as soon as you remember. Then take your next dose as scheduled.
If you forget to take a dose of famciclovir and it is less than an hour until your next dose is due, do not take the missed dose and take your next dose when scheduled to do so. Do not take a double dose to make up for a forgotten dose.
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