Valve drive for an internal combustion engine , having - at least one gas exchange valve ; - a first, mechanically driven drive mechanism ; - a second drive mechanism that for repositioning the at least one gas exchange valve is connected to the latter, wherein - the first drive mechanism is operatively connected to the second drive mechanism by way of a hydraulic coupling installation , wherein - the hydraulic coupling installation has a pressure chamber which is capable of being relieved of pressure by way of a valve installation and which under hydraulic pressure is specified for coupling the first drive mechanism to the second drive mechanism , and in the pressure-relieved state is specified for decoupling the first drive mechanism from the second drive mechanism, wherein - the valve installation has at least two switch valves (31, 33; 31', 33') which are fluidically connected in parallel to the pressure chamber and by way of which the pressure chamber in the opened state is capable of being relieved of pressure by at least one of the switch valves (31, 33; 31', 33'), characterized in that - the valve drive has a control apparatus which, for representing a variable valve stroke of the at least one gas exchange valve during a same stroke movement of the gas exchange valve , is specified for actuating the switch valves (31, 33; 31', 33') in a temporally offset manner, and in that - each of the switch valves (31, 33; 31', 33') is assigned, for actuation, an end stage configured as an electronic installation for actuating the respective switch valve (31, 33; 31', 33'), wherein the end stage is specified for implementing a switching signal by way of the required actuating output for switching the respective switch valve (31, 33; 31', 33'), and for thus driving the switch valve (31, 33; 31', 33'). - at least one gas exchange valve ; - a first, mechanically driven drive mechanism ; - a second drive mechanism that for repositioning the at least one gas exchange valve is connected to the latter, wherein - the first drive mechanism is operatively connected to the second drive mechanism by way of a hydraulic coupling installation , wherein - the hydraulic coupling installation has a pressure chamber which is capable of being relieved of pressure by way of a valve installation and which under hydraulic pressure is specified for coupling the first drive mechanism to the second drive mechanism , and in the pressure-relieved state is specified for decoupling the first drive mechanism from the second drive mechanism, wherein - the valve installation has at least two switch valves (31, 33; 31', 33') which are fluidically connected in parallel to the pressure chamber and by way of which the pressure chamber in the opened state is capable of being relieved of pressure by at least one of the switch valves (31, 33; 31', 33'), characterized in that - the valve drive has a control apparatus which, for representing a variable valve stroke of the at least one gas exchange valve during a same stroke movement of the gas exchange valve , is specified for actuating the switch valves (31, 33; 31', 33') in a temporally offset manner, and in that - each of the switch valves (31, 33; 31', 33') is assigned, for actuation, an end stage configured as an electronic installation for actuating the respective switch valve (31, 33; 31', 33'), wherein the end stage is specified for implementing a switching signal by way of the required actuating output for switching the respective switch valve (31, 33; 31', 33'), and for thus driving the switch valve (31, 33; 31', 33'). <EOS>