Differences of convulsive reactivity are manifested when a stimulating agent to the central nervous system is given to a group of individuals.In 84 patients suffering from functional psychoses and with a standard dose of metrazol used as a stimulant, 1.19% developed a seizure. The one patient having a convulsion was quite possibly incorrectly diagnosed. Of 34 epileptic patients, 47.05 per cent developed seizures on a dose equal to that for schizophrenic and other patients.Patients developing grand mal seizures with a dose of five cubic centimeters or less per 100-pound body weight (45. 5 kilograms) have an increased irritability of the nervous system and epilepsy is to be suspected in the absence of any evidence of organic disease of the brain.Abstract Teaser