diarrhetic vs diarrhoeal

diarrhetic and diarrhoeal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
diarrhetic	No	Yes	No	No
diarrhoeal	No	Yes	No	No

As adjectives, diarrhetic and diarrhoeal are synonyms defined as:

Other synonyms of diarrhetic include diarrheal, diarrheic, diarrhoeic, diarrhoetic.

diarrhetic (adjective)	diarrhoeal (adjective)
of or relating to diarrhea	of or relating to diarrhea