“… nicotinic acid had distinct inhibitory effects … antineoplastic drugs, namely, mitomycin C , bleomycin, fluorouracil, cis-Diaminodichloroplatinum, arabinosylcytosine and mustargen Vit K3 showed inhibitory effect to mitomycin C, fluorouracil, cis-diaminodichloroplatinum, and … B1, Vit B2, Vit Bco, Vit D3, Vit E, Rutin, Vit K1, Vit K4 and folic acid did not.”