phenelzine Get Now Phenelzine works by inhibiting the enzyme monoamine oxidase (MAO), which is responsible for breaking down neurotransmitters such as serotonin, norepinephrine, and dopamine. By blocking this enzyme, phenelzine increases the concentration of these neurotransmitters in the synaptic cleft, enhancing mood and emotional stability. Indications Phenelzine is primarily indicated [...]