PM-GM Succinylcholine-modified electroshocktherapy without barbiturates has the following advantages:1. Only 10 mg. of succinylcholine are needed to produce sufficient relaxation to prevent fractures in practically 100% of all patients.2. It dispenses entirely with the need of barbiturates.3. It does not produce any more apnea than is produced following an unmodified alternating current treatment. In fact, due to the laryngeal relaxation produced by the SCC, patients breathe sooner and better with the PM-GM method than after unmodified alternating current treatment.4. There is no need of oxygen following the convulsion.5. The technic is very simple, and requires the least personnel for its administration. The psychiatrist can effectively give the treatment himself assisted only by one nurse. It can be given to a large number of patients within a short time.6. Following the convulsion the patients are awake and clear within a relatively short time. This is advantageous in ambulatory patients.7. Study of the problem of fear which occurs in a small number of patients with this method shows that the fear produced is not due to the method itself, but is inherent in the patient and sometimes is caused by imperfect treatment technic. Suggestions as to how to avoid fear are made.8. We believe that the PM-GM technic is the safest electroshocktherapy technic so far developed and recommend its use.