A clinical comparison of phenelzine and electro-convulsive therapy in the treatment of depressive illness

The mono-amine oxidase inhibitors, of which phenelzine (“Nardil”) is one example, were introduced for the treatment of depressive illness as a result of the observation that iproniazid, which is a mono-amine oxidase inhibitor, produced euphoria and increased mental alertness in some tuberculous patients to whom it was given. Trials of iproniazid in mental illness were carried out (Loomeret al., 1957; Cesarman, 1959), but it was found to be very liable to give rise to side-effects, being particularly toxic to the liver. Other less toxic mono-amine oxidase inhibitors such as phenelzine, which is chemically related to iproniazid, were later developed.