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