Here's what rhymes with thromboxane.

Consider these alternatives

prostaglandin / standing cyclooxygenase / case ergosterol / small gibberellin / telling endothelin / telling reuptake / uptake luciferin / cruciferin cholecystokinin / meaning acetylcholinesterase / case progesterone / known thyroxine / levothyroxine anorthite / foresight catecholamine / mean histamine / mean megakaryocytes / rights ethylbenzene / seen neutrophils / years ghrelin / one lymphocytes / rights norepinephrine / line