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.
Rare: Headaches, Pruritus (itching of the skin), Skin Rash. The side effects listed here are the most common and rare problems reported by patients using betahistine It may not include all of the side effects reported by the drugâs manufacturer. If common side effects persist you need to inform your doctor.istimine is thought to be involved in the dilation of blood vessels in the body and contraction of smooth muscle. Betahistine seems to work on the smooth muscle surrounding the blood vessels of the middle ear, improving blood flow, thus reducing the pressure in the ear.