Here's what rhymes with serotogenic.
pyogenic antigenic pathogenic splenic biogenic eugenic iatrogenic phrenic teratogenic androgenic allergenic photogenic irenic telegenic transgenic anthropogenic cryogenic mutagenic neurogenic hypoallergenic psychogenic hallucinogenic schizophrenic neurasthenic calisthenic carcinogenic callisthenic Words that almost rhyme with serotogenic
epidemic polemic pandemic totemic pfennig academic endemic systemic epistemic ischemic leukaemic nonacademic technic benthic derrick genetic poetic authentic generic acetic diabetic pathetic pelvic angelic ascetic ferric relic peptic allelic eutectic steric dietetic geodesic geodetic medic fetich pectic domestic energetic kinetic prophetic athletic majestic metric apologetic esoteric forensic phonetic septic apathetic aseptic centric cleric enteric hectic obstetric emetic sceptic tartaric turmeric hermetic acerbic lovesick paregoric bathetic magnetic aesthetic sympathetic dialectic geometric symmetric cosmetic epileptic esthetic numeric alphabetic diuretic prosthetic empathetic frenetic isomeric psychedelic skeptic apoplectic chimeric dyspeptic hysteric peripatetic antithetic evangelic paramedic paraplegic polytechnic pyrotechnic diametric gametic parenthetic redbrick unaesthetic unauthentic electric atmospheric synthetic anesthetic dielectric eccentric antiseptic asymmetric concentric eclectic mesenteric parametric anaesthetic isometric phylogenetic barometric cybernetic monomeric ontogenetic photometric anorexic dyslexic geocentric inauthentic anorectic antipathetic homiletic splenetic unapologetic exegetic copacetic phrenetic dyslectic arithmetic unsympathetic egocentric geomagnetic kinesthetic anthropocentric heliocentric ionospheric cataleptic nonmagnetic thermometric onomatopoetic telekinetic nonathletic psychokinetic unesthetic volumetric econometric psychometric antidiuretic biosynthetic colorimetric ethnocentric ferromagnetic neuroleptic nonparametric paramagnetic alphanumeric radiometric narcoleptic nonelectric cliometric parasympathetic photoelectric photosynthetic isoelectric pharmacokinetic piezoelectric stoichiometric trigonometric hydroelectric electromagnetic