im on 75mg venlafaxine one a day and now ive got tonsillitis as well! the doctor has prescribed 500mg penicillin 4 times a day. yeasterday i took one dose and felt very anxious and had an on and off pain around my left hand breast area i was worrying that all the medication was affecting my heart. i am reluctant to take the penicillin now. has anyone else taken these 2 at the same time?