Diane
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        Alex,  I have excessive saliva when I have too much Mestinon in my system.  What dose of Mestinon are you on?  Could it be too much?  If I am stable, I cut back half the dose of Mestinon for several times and that way I can always tell.  I take large doses - 90mg every three hours.  You may want to discuss this with your physician.