Here's what rhymes with cyclophosphamide.

Consider these alternatives

azathioprine / line vincristine / seen adriamycin / rising etoposide / side mitoxantrone / known pyrimethamine / nine zidovudine / seen isoniazid / side didanosine / seen rifampin / standing phenobarbital / phenobarbitol corticosteroids / steroids stavudine / seen trimethoprim / him acyclovir / will rituximab / that chemotherapeutic / therapeutic hydralazine / seen papaverine / seen gemcitabine / seen diazepam / can chlordiazepoxide / dioxide doxycycline / line gabapentin / depending amitriptyline / skyline bleomycin / rising