Dear Patient, zapiz is a so called benzodiazepine and a common side effect can be loss of consciousness. Especially elderly patients respond stronger to even low dose like 0,25. Also using it together with Mazetal may increase side effects such as dizziness, drowsiness, and difficulty concentrating. So i recommend reevaluating the treatment with your doctor since this can be dangerous and can lead to serious injury when he falls and hurts himself for example. Hope this is helping you , if you have any clarificatons you can get back to me, if this was helpful please kindly rate my answer. Best regards