Famvir for Treatment of Hearing in Unilateral Meniere's Disease

Inclusion Criteria: * Unilateral Meniere's Disease * 2 vertigo episodes of at least 20 minutes * Fluctuating hearing by subjective history and/or audiometric documentation. Audiometric documentation is defined as affected ear pure-tone average change from an audiogram at Time 1 to Time 2 (less than one year apart) of greater than 15 dB. * Less than 45 dB 4-frequency pure-tone average in the affected ear * Tinnitus and/or aural fullness * Willing to undergo the clinical trial procedures * Signed informed consent Exclusion Criteria: * Acute or chronic middle ear disease in either ear * Only hearing ear * 4-frequency pure-tone average \> 45 dB in either ear * Known allergy to famciclovir or any of the ingredients in the formulation * Taking oral steroids or receiving IT steroids at time of enrollment. If the subject has been on oral steroids/IT steroids, 3 months must elapse from last dose to start of treatment in the study * Must not have had previous inner ear surgery * History of immunodeficiency diseases such as HIV * History of renal insufficiency or other kidney diseases * A female of child-bearing potential who is pregnant * History of noncompliance to medical regimens * Unwilling to or unable to comply with the protocol, including scheduling study evaluations