pharmaceutical preparations, namely, chemical tobacco substitutes or replacements of tobacco for medical purposes in the treatment of smoking cessation, and for treatment of Alzheimer's disease, Parkinson's disease and ulcerative colitis; medical sprays, gels, chewing gums, lozenges, tablets, transdermal, mucosal and pulmonary administrations for the treatment of smoking cessation, Alzheimer's disease, Parkinson's disease and ulcerative colitis; dietetic substances adapted for medical use, na...