As nouns the difference between purgative and gutwort
is that purgative is something, such as a substance or medicine, that purges; laxative while gutwort is (botany) a plant, globularia alypum , a violent purgative, found in africa.
As an adjective purgative
is (capable of) purging.
purgative
English
Adjective
(head)
(capable of) purging
Noun
(
en noun)
something, such as a substance or medicine, that purges; laxative
gutwort
English
Noun
(
-)
(botany) A plant, Globularia alypum , a violent purgative, found in Africa.
(
Webster 1913)