My father(65) is suffering from bipolar and schizophrenia from past three years,and from one month he is taking ativan 2mg whenever he feels anxious,can i combine olanzapine and fluoxetine with ativan?

Only his Dr can make this judgement call. But you can go to Drugs.com and enter everything he is taking to see if there are interactions between the meds that might be dangerous.

Answer is yes, but Ativajn is a tranquilizer for short term use. Need to have a psychiatrist recommend tjhe best procedure; which would be o start Zyprexa and titrate for optional effect and then deal with the residual symptoms.

Problems: 1. Ativan 2mg a healthy single dose, especially in older person (risk of falls, confusion), especially when taking other psychoactive meds (especially the very sedating (olanzapine). Ativan can be addicting, and you don't say total dose/d. 2. "anxiety" could reflect inadequate treatment of primary psychiatric disease(s). 3. ??diagnoses: both illnesses usually begin before 30 yrs age.