No, it is not a monoamine oxidase inhibitor (MAOI).

1. things

A drug that inhibits the absorption of the enzyme monoamine oxidase.

This is an addition to the above-mentioned answer.

To be more specific, monoamine oxidase inhibitor (MAOIs) is an antidepressant which indirectly inhibits the degradations of monoamine by directly inhibiting the enzyme responsible for this degradation process (that enzyme is monoamine oxidase).

And serious heart problems may occur if caffeine and monoamine oxidase inhibitors (MAO) are taken together.

Monoamine oxidase inhibitors