The supplied Biovir - 400 Tablets are used to stop or treat herpes infections. It is used to treat chickenpox. They are indicated for the prophylaxis of herpes simplex infections in immunocompromised patients. They can be used mainly for the treatment of non-severe skin and mucous membranes herpes simplex virus (HSV) infections.It can speed up healing of the sores and decrease symptoms (such as tingling, pain, burning, itching). They are not usually harmful, unless people take too much over several days. The Biovir - 400 Tablets are made for use in the various medical condiion for quick results.