Described herein are methods for preventing or treating a retroviral infection and/or for preventing, inhibiting or treating a disease caused by the retroviral infection. In certain aspects, the methods described herein include contacting a cell in need thereof with compound (I), wherein (II) means a pyridazine, a pyrimidine or a pyrazine group, R independently represent a hydrogen atom, a halogen atom or a group chosen among a –CN group, a hydroxyl group, a –COOR1 group, a (C1 -C3)fluoroalkyl group, a (C1 -C3)fluoroalkoxy group, a –NO2 group, a –NR1R2 group, a (C1-C4)alkoxy group, a phenoxy group and a (C1-C3)alkyl group, said alkyl being optionally mono-substituted by a hydroxyl group, n is 1, 2 or 3, n is 1 or 2, R is a hydrogen atom, a halogen atom or a group chosen among a (C1-C3)alkyl group,, a hydroxyl group, a –COOR1 group, a –NO2 group, a –NR1R2 group, a morpholinyl or a morpholino group, a N-methylpiperazinyl group, a (C1-C3)fluoroalkyl group, a (C1-C4)alkoxy group and a –CN group, Z is N or C, Y is N or C, X is N or C, W is N or C, T is N or C, U is N or C, to prevent or treat the retroviral infection and/or for preventing, inhibiting or treating a disease caused by the retroviral infection, wherein the retroviral infection is not HIV and the disease caused by the retroviral infection is not AIDS.Se describe en la presente métodos para prevenir o tratar una infección retrovírica y/o para prevenir, inhibir o tratar una enfermedad causada por la infección retrovírica. En ciertos aspectos, los métodos descritos en la presente incluyen poner en contacto una célula que necesita del mismo con el compuesto (1) (ver Fórmula) en donde: (ver Fórmula) significa a grupo piridazina, pirimidina o pirazina, R representa independientemente un átomo de hidrógeno, un átomo de halógeno o un grupo elegido de entre un grupo - CN, un grupo hidroxilo, un grupo -COOR1, un grupo fluoroalquilo(C1-C3), un grupo fluoroalcoxi(C1-C3), un grupo - NO2, un grupo -NR1R2, u
