| serotonin level | 1.91 | Controlling serotonin levels might provide one solution. | ||
| serotonin inhibitor | 1.18 | Prozac and its immediate successors are called selective serotonin reuptake inhibitors, or SSRIs. | ||
| serotonin transporter | 0.46 | These molecules are called serotonin transporters. | ||
| serotonin receptor | 0.39 | Zyban, a prescription drug, works on the serotonin receptors in the brain that affect nicotine addiction. |