A composition intended to be employed for therapeutic purposes incorporates nicotine and at least one other nicotinic compound. Representative forms of nicotine can be as a free base (e.g., as a mixture of nicotine and microcrystalline cellulose), as a form of nicotine salt (e.g., as nicotine bitartrate) or as nicotine polacrilex. The other nicotinic compound is a compound that can be considered to bind selectively to certain nicotinic receptor subtypes, and particularly those of the central nervous system. For example, the other nicotinic compound can be a compound that binds selectively to the nicotinic receptor subtypes ± 7 or ± 4 ² 2 . The composition is useful for treatment of central nervous system conditions, diseases and disorders, and as a nicotine replacement therapy.
