Compounds of Formula I, pharmaceutically acceptable salts thereof, enantiomers thereof, metabolites thereof, derivatives thereof, prodrugs thereof, acid addition salts thereof, pharmaceutically acceptable salts thereof, or N-oxides thereof; or a combination thereof; processes and intermediates for preparation thereof, compositions thereof, and uses thereof; are provided. Pharmaceutical compositions comprising a compound of Formula I, or enantiomers thereof, metabolites thereof, derivatives thereof, prodrugs thereof, acid addition salts thereof, pharmaceutically acceptable salts thereof, or N-oxides thereof; or a combination thereof; wherein the compound is a double and/or triple agent or ligand for CYP2D6, 5-HT2A, and/or 5HT2C receptors, and/or acetylcholinesterase are provided.