Here's what rhymes with immunostimulant.
stimulant Words that almost rhyme with immunostimulant
simulate vigilant virulent dissonant dissimulate nimblest cheerfullest timpanist difficult filament ligament militant ambivalent particulate inarticulate visitant littlest sycophant gesticulate nonvirulent ficklest equivalent participant omnipotent silicate medicament belittlement nonmilitant legitimate magnificent coincident predicament discriminant empiricist militarist precipitant nonequivalent ministrant imprisonment abolitionist exhibitionist nonparticipant indiscriminate grandiloquent individuate prohibitionist coalitionist