| But just how tinkering with monoamine levels takes the edge off despair is unclear. |
| Products such as St John's wort may act as a mild monoamine oxidase inhibitor or as a serotonin reuptake inhibitor. |
| A drug that interferes with the action of monoamine oxidase, slowing the breakdown of certain neurotransmitters. |
| St.John's Wort contains hypericin, which inhibits monoamine oxidase, a chemical associated with depression. |
| The oldest antidepressants are the monoamine oxidase inhibitors, which were developed several decades ago. |
| Initial attention was drawn to hypericin and pseudohypericin since they inhibit the enzyme monoamine oxidase, as do several pharmaceutical antidepressants. |
