Home > Respiratory System > Respiratory System of the Head and Neck > Larynx. The larynx is a tough, flexible segment of the respiratory tract connecting the pharynx to the trachea in the neck. It plays a vital role in the respiratory tract by allowing air to pass through it while keeping food and drink from blocking the airway.
Common side effects from nicotine gum include bleeding gums, too much saliva, hiccups, indigestion, slight swelling of the mouth, injury to teeth or cheeks, nausea, upset stomach and sore throat. Less common or rare side effects may include diarrhea, dry mouth, swollen gums, sores in the tongue/throat/mouth, muscle pain, rashes and sweating.
1 Nicotine is very slow to go through the skin to the bloodstream. 2  The slowness voids the ability to self-titrate with any accuracy. 3  You can much more easily overdose, as seen from the above points.  Patches do this in a much more controlled way, if you are not getting enough from one patch, use a second or go up a grade.