| ADHD | Attention Deficit Hyperactivity Disorder |
| ADMET | Absorption, Distribution, Metabolism, Excretion, Toxicity |
| BBB | blood–brain barrier |
| BSA | bovine serum albumin |
| Caco-2 | human colorectal cancer cell line |
| Clint | Clearance |
| cAMP | 3′,5′-cyclic adenosine monophosphate |
| CYP | cytochrome |
| DA | dopamine |
| DCM | dichloromethane |
| DTLs | dual-target ligands |
| DX | doxorubicin |
| ER | efflux ratio |
| FAD | flavin adenine dinucleotide |
| FC | flash chromatography |
| HepG2 | human liver cancer cell line |
| H3R | histamine H3 receptor |
| hH3R | human histamine H3 receptor |
| hMAO-A | human monoamine oxidase A |
| hMAO-B | human monoamine oxidase B |
| KE | ketoconazole |
| MAO-B | monoamine oxidase B |
| MLMs | mouse liver microsomes |
| MM-GBSA | Molecular Mechanics–Generalized Born Surface Area |
| NC | negative controls; untreated control |
| PAMPA | Parallel Artificial Membrane Permeability Assay |
| Papp | permeability coefficient |
| PBMCs | peripheral blood mononuclear cells |
| PBS | phosphate-buffered saline |
| PC | positive control |
| PD | Parkinson’s Disease |
| PEA | β-phenylethylamine |
| PFA | paraformaldehyde |
| RLMs | rat liver microsomes |
| RMSD | Root Mean Square Deviation |
| ROS | reactive oxygen species |
| RT | residence time |
| SAF | Safinamide |
| SH-SY5Y | human neuroblastoma cell line |
| SPRM | Surface Plasmon Resonance Microscopy |
| QD | quinidine |