Substituted pyrimidine and triazine compounds corresponding to formula I wherein R1, R2, R3, R4a, R4b, R5a, R5b, R7, R8, R9a, R9b, R10, R11, A, a, b, s, t, V, W1, W2 and W3 have defined meanings, pharmaceutical compositions comprising such compounds, a process for preparing such compounds, and the use of such compounds and compositions to treat or inhibit pain and/or other disorders or disease states.