The invention relates to 5,6-diphenylpyridine-3-carboxamide derivatives of general formula (I), where R1 = H, or (C1-C4) alkyl, R2 = a monoazo saturated heterocycle of 5 to 7 atoms, the nitrogen atom being substituted with a (C1 -C4)alkanoyl, NR10R11, a non-aromatic (C3-C10) carbocycle more than tri-substituted with (C1-C4) alkyl, a non-aromatic (C11-C12) carbocycle unsubstituted or mono- or poly-substituted with (C1-C4) alkyl, a monooxygenated saturated heterocycle with 5 to 7 atoms, more than tri-substituted with (C1-C4) alkyl, or R1 and R2, together with the nitrogen atom to which the above are bonded, form a 4-disubstituted piperidin-1-yl group, the salts, solvates and hydrates thereof. The invention further relates to a method for production and therapeutic application thereof.