Can anyone tell me more about diprivan anesthesia ?? Yesterday my elder sister has been operated because she was suffering from a breast cancer which has come at an advanced stage. It was necessary to do that operation or else, the cancer would have endangered sister’s life. She was put on diprivan anesthesia before her operation and it has been successful but she has not yet regains conscious. It is said that the unconsciousness is just for some hours. The effects of Diprivan generally come to a term after a few hours, however it is possible that Diprivan affects your reflex mechanism and thought processes. I am a bit worried coz it has been more than 2 hours since sis is unconscious. Is this normal??