intramuscular recombinant alpha interferon ( rifn-2a ; 9 million iu given for 5 days during a 9-day treatment period ) was compared with topical acyclovir in a double-blind , placebo-controlled trial for the treatment of first-episode genital herpes simplex virus ( hsv ) infection and for subsequent alteration of the frequency of recurrences .
C0001367
acyclovir
C0019342
genital herpes simplex virus