My Brother Is Taking Venlafaxine And Iliquis. Experiencing Pain In

My brother is taking venlafaxine and Iliquis. Experiencing pain in upper left abdomen. Having episodes of delirium or confusion type symptoms. Talking in almost a whisper. Says doesn't have enough air to talk louder. Seeing and thinking about things that are not happening. Anything fit in with an interaction of these drugs. My email is YYYY@YYYY . Thank you for your consideration of this.