Here's what rhymes with progestogen.

Consider these alternatives

levonorgestrel / norgestrel dapsone / shown cyproterone / known antimalarial / burial ethinyl / final progesterone / known carbamazepine / oxcarbazepine progestin / testing phenylephrine / line zidovudine / seen kanamycin / rising antiinflammatory / story mitoxantrone / known calcineurin / can progestins / since spironolactone / backbone thyroxine / levothyroxine steroidal / colloidal estrone / testimony tetracycline / line