Motorized wheelchair for disabled or elderly users (CA) comprising a frame (T), a seat (S) for the disabled driver, a handlebar (B), a motor (MO) provided with an acceleration apparatus, a wheel assembly (R) and a braking apparatus (F) of said wheels (R), characterized in that it also comprises a bivalent control device (100) that is capable of being interfaced with the acceleration apparatus of the motor (MO) and with the braking apparatus (F) of the wheels (R).