How does Famciclovir (Generic Famvir) work?
Famciclovir (Generic Famvir) works by blocking reproduction of the virus that causes infections. Once inside the body, Famciclovir (Generic Famvir) gets converted in a medicine known as penciclovir, which has an effect of blocking the action of the viral enzyme DNA polymerase. This DNA polymerase is necessary for the virus to reproduce and spread and without it, the virus is weakened. Thus, Famciclovir (Generic Famvir) makes treatment possible by stopping the virus from multiplying and allowing the immune system to clear it out from the body.

Side effects of Famciclovir (Generic Famvir)
Famciclovir (Generic Famvir) side effects that may result due to intake of the medication include swelling of mouth, face or lips, confusion, hallucination, reddening of skin, peeling of the skin. Certain patients might also show symptoms of an allergic reaction such as itching, hives or skin rash. In case any of these Famciclovir (Generic Famvir) side effects are observed the patient taking the drug should immediately consult the doctor.

Some other side effects that have been observed are headache, gas, tiredness, vomiting and diarrhoea. These are not the effects that may cause any serious problem but it is better to inform the doctor about these symptoms. Women should not take this medicine during pregnancy without first consulting their doctor and intimating him/her about the pregnancy as there might be chances of Famciclovir (Generic Famvir) side effects on the foetus.

Guidelines before taking Famciclovir (Generic Famvir)
Before starting treatment you must inform your doctor about your medical history or any kidney diseases that you have. You must provide the doctor with knowledge of any other drugs you might be taking to cut out any possibility of drug interactions. Famciclovir (Generic Famvir) comes in the form of pills and has to be taken orally with water. It is advised to drink lot of water when using this drug. This can reduce possibility of Famciclovir (Generic Famvir) side effects. The dose and schedule for treatment should be strictly followed as advised by the health care provider. It may cause adverse effect if the patient takes overdose or if the medication is discontinued suddenly without consulting the doctor.

What are the common dosages of Famciclovir (Generic Famvir)?
It is generally possible to buy Famciclovir (Generic Famvir) drug in strengths of 250mg and 500mg, but the exact dosage can only be determined by a doctor. The dosage regimen will vary depending on whether the patient is an adult or child and the severity of the symptoms.