caffeine intoxication vs caffeinism

caffeine intoxication and caffeinism both are nouns.

Word	Noun	Adjective	Verb	Adverb
caffeine intoxication	Yes	No	No	No
caffeinism	Yes	No	No	No

As nouns, caffeine intoxication and caffeinism are synonyms defined as:

caffeine intoxication and caffeinism: poisoning resulting from excessive intake of caffeine containing products

caffeine intoxication (noun)	caffeinism (noun)
poisoning resulting from excessive intake of caffeine containing products	poisoning resulting from excessive intake of caffeine containing products