Can An Elderly Patient Safely Take Lonazep Twice Daily With Parkitidine And Risdone MT?

My father is 70 years old doctor has given him parkitidine 100 and Risdone mt 0.5 along with Lonazep 0.5 as sos can I give him lonazep twice a day is Risdone mt 0.5 has any side effect as he is continuously repeating same word many times. Actually according to another doctors advice I had given him 2 depsonil .25 along with risdone mt .5 and parkitidin. My doctor said it reacted with depsonil and that should be stopped. Only risdonemt and parkidine should be taken .pls help