Here's what rhymes with serotonine.
                        
                        
                    
                                meanie  meany  genie  genii  teeny  beanie  sheeny  weenie  weeny  wienie  serine  nomine  pontine  bikini  briny  terrine  blini  patinae  tyrosine  leucine  carinii  threonine  valine  martini  zucchini  leonine  saturnine  kerosine  fettuccine  gaberdine  linguine  tortellini  signorine  methionine  Words that almost rhyme with serotonine
seamy  dreamy  creamy  steamy  needy  nisi  meanly  mealy  meaty  midi  uneasy  viii  keenly  neatly  leafy  leaky  meekly  fieri  seedy  weedy  beady  cheeky  cheesy  peaty  reedy  sneaky  tipi  beefy  kiwi  measly  wheezy  weepy  geeky  peachy  peaky  phoebe  chichi  lychee  peewee  teensy  wheelie  weensy  wheelies  weepie  peachier  chiefly  deeply  freely  treaty  weekly  query  greedy  ideally  speedy  weakly  cheaply  feebly  greasy  sleepy  specie  cleanly  naively  breezy  gipsy  libri  seemly  steely  banditti  creepy  fleecy  queasy  queenly  sleazy  sweetie  creaky  unready  freaky  genteelly  preachy  yeasty  freebie  greenly  sleety  stormily  tweedy  dashiki  cliquey  seemlier  freebee  preachier  briefly  routinely  uniquely  obliquely  steeply  sweetly  xviii  beastly  entreaty  unseemly  unwieldy  xxviii  principe  xxxviii  biweekly  squeaky  tsetse  bleakly  streaky  speakeasy  squeegee  uncleanly  wapiti  fleetly  sleekly  greenfly  screechy  umbilici  biyearly  unseemlier  screechier  priestly  graffiti  completely  discreetly  inferiorly  discretely  semiweekly  barbarically  semiyearly  extremely  incompletely  indiscreetly