while having no antitumor effect per se , caffeine substantially enhanced the antitumor effects of the phleomycins plm-chp and plm-pep , and the bleomycins blm-chp and blenoxane in rats carrying walker 256 carcinosarcoma and/or mice carrying ehrlich ascites tumor , even at doses of phleomycin and bleomycin below the minimum effective level .
C0031559
phleomycin
C0005740
bleomycin