Lozenges to help you quit smoking and curb nicotine craving when smoking is not available. Smoking ‘Sucks’ are the new smoking cessation drops specially developed by healthcare professionals for those who have decided to quit smoking the natural, nicotine-free, drug-free way. Delicious and powerfully effective, these all-natural lozenges contain L-tryptophan to curb even the strongest nicotine cravings and help relieve both the oral and the nicotine addiction habits.