 [ Symptoms ] could clonazepam be causing nausea and dizziness or is it bupropion [ Disease ] hi these are some of the side effects form www drugs com less serious clonazepam side effects may include drowsiness dizziness problems with thinking or memory tired feeling muscle weakness loss of balance or coordination slurred speech drooling or dry mouth sore gums runny or stuffy nose loss of appetite nausea diarrhea constipation blurred vision headache and yes it has both of you problems good luck