toxicology vs materia medica

toxicology and materia medica both are nouns.

Word	Noun	Adjective	Verb	Adverb
toxicology	Yes	No	No	No
materia medica	Yes	No	No	No

As nouns, materia medica is a hypernym of toxicology; that is, materia medica is a word with a broader meaning than toxicology:

toxicology: the branch of pharmacology that deals with the nature and effects and treatments of poisons
materia medica: the science or study of drugs: their preparation and properties and uses and effects

Other hypernyms of toxicology include pharmacological medicine, pharmacology.

toxicology (noun)	materia medica (noun)
the branch of pharmacology that deals with the nature and effects and treatments of poisons	the science or study of drugs: their preparation and properties and uses and effects