STOCKHOLM--(BUSINESS WIRE)--Regulatory News: Medivir (STO:MVIRB) The Swedish Medical Products Agency has now approved Xerclear™ for treatment of cold sores. It is the first and only topical treatment that has been demonstrated to prevent the incidence of cold sores and shorten healing-times. Xerclear™ will be available from pharmacies in the first half-year 2010.