Or search: rh, acth, insulin, pitocin, relaxin, oxytocin, glucagon, thymosin, adrenalin, melatonin, secretion, pitressin, adrenaline, epinephrin, epinephrine
2 Syllables: SU
foremost, hormone, Moro, morrow, oro, Porto, quarto, thorough, torso, wardrobe
4 Syllables: UUSU
metamorphosed

Found 11 words across 2 groupings.