Metrazol vs pentamethylenetetrazol

Metrazol and pentamethylenetetrazol both are nouns.

Word	Noun	Adjective	Verb	Adverb
Metrazol	Yes	No	No	No
pentamethylenetetrazol	Yes	No	No	No

As nouns, Metrazol and pentamethylenetetrazol are synonyms defined as:

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

Other synonyms of Metrazol include pentylenetetrazol.

Metrazol (noun)	pentamethylenetetrazol (noun)
a drug used as a circulatory and respiratory stimulant; larger doses cause convulsions in shock therapy; Metrazol is a trademark	a drug used as a circulatory and respiratory stimulant; larger doses cause convulsions in shock therapy; Metrazol is a trademark