My Grandmother had some major surgery about 4 weeks ago. We noticed some confusion and short-term memory loss that we were told was a side effect of the anesthesia. We were also told it would go away in about a week, which it seemed to do. Now, she is recovering in a nursing home. My grandmother also has had to deal with a slight case of depression over the years. The doctor that oversees her medication there changed her prescription from Valium to Klonnopin. Within a day of the switch, we noticed confusion and short term memory loss again. We can't seem to convince her current doctor that it may be related to the Klonnopin. Has anyone else seen this? The Klonnopin is supposedly a new drug and is therefore better than the Valium.