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• n  a drug used as a circulatory and respiratory stimulant; larger doses cause convulsions in shock therapy; Metrazol is a trademark

• Metrazol is a powerful stimulant of the centres which regulate blood pressure, heart action and respiration.
• So although metrazol is widely used, a large number of psychiatrists condemn it as a "very dangerous drug.
• Its advantages: 1) the convulsions are not usually as violent as those produced by metrazol; 2) since patients lose consciousness immediately, they do not remember the frightening .

• pentylenetetrazol
• pentamethylenetetrazol
• Metrazol