| Similarity | Rank | |
|---|---|---|
| serotonin | 0.707 | 59388 |
| dopamine | 0.695 | 48767 |
| progesterone | 0.676 | 75969 |
| cortisol | 0.658 | 61115 |
| neurotransmitter | 0.647 | 51284 |
| hormone | 0.630 | 11559 |
| melatonin | 0.613 | 64514 |
| testosterone | 0.610 | 32561 |
| ketamine | 0.594 | 97502 |
| analgesia | 0.587 | 94343 |
| the_placenta | 0.583 | 57220 |
| estrogen | 0.577 | 36849 |
| antidepressant | 0.576 | 40459 |
| cannabinoid | 0.573 | 91163 |
| opioid | 0.572 | 48583 |
| anesthetic | 0.564 | 62398 |
| corticosteroid | 0.563 | 63209 |
| benzodiazepine | 0.562 | 91802 |
| morphine | 0.561 | 40163 |
| sedative | 0.552 | 69248 |
| breast_milk | 0.549 | 37585 |
| glutamate | 0.548 | 85465 |
| during_pregnancy | 0.546 | 22288 |
| nitric_oxide | 0.543 | 68359 |
| placenta | 0.541 | 81735 |