atomic cocktail vs medicament

atomic cocktail and medicament both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomic cocktail	Yes	No	No	No
medicament	Yes	No	No	No

As nouns, medicament is a hypernym of atomic cocktail; that is, medicament is a word with a broader meaning than atomic cocktail:

atomic cocktail: an oral dose of radioactive substance used in treatment and diagnosis of cancer
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of atomic cocktail include medication, medicinal drug, medicine.

atomic cocktail (noun)	medicament (noun)
an oral dose of radioactive substance used in treatment and diagnosis of cancer	(medicine) something that treats or prevents or alleviates the symptoms of disease