Use of at least a compound (I) for preparing a pharmaceutical composition for preventing and/or treating viral infection, is claimed. Use of at least a compound of formula (A-B1-C1) (I) for preparing a pharmaceutical composition for prophylaxis and/or treatment of viral infection, is claimed. A : quinoline or quinoline-type group B1 : single amino acid (preferably aspartic acid), peptide or polypeptide (preferably aspartic acid and valine) with a sequence of amino acids (preferably valine-aspartic acid sequence or valine-alanine-aspartic acid), preferably peptide with di-, tri- or tetra- polypeptide sequence and C1 : O-phenoxy. Independent claims are included for: (1) an antiviral composition comprising (I), and another antiviral agent, preferably antiretroviral agent and (2) a combination comprising (I) and another antiviral agent, preferably other antiretroviral agent, in which the compounds (I) and other antiretroviral agent are separated from one another. . ACTIVITY : Virucide Antiinflammatory Hepatotropic Respiratory-Gen. Anti-HIV. MECHANISM OF ACTION : Transcriptase inhibitor.