1-.beta.-D-Ribofuranosyl-1,2,4-triazolo-3-carboxamide 1H-1,2,4-Triazole-3-carboxamide, 1-.beta.-D-ribofuranosyl- 36791-04-5 (NEUTRAL) AIDS-000053 AIDS000053 Copegus ICN-1229 NSC163039 (NEUTRAL) RBV RTCA Rebetol Rebretron Ribav Ribavirin Ribavirine Tribavirin Vilona Viramid Virazid Virazole