Veliparib is a potent inhibitor of PARP1 and PARP2. It is inactive to SIRT2.

Podophyllotoxin(鬼臼毒素) is a potent spindle poison, toxic if taken internally, and has been used as a cathartic.

Ofloxacin(氧氟沙星) is a synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.

Fidaxomicin(非达霉素) is a narrow-spectrum, 18-membered macrolide antibiotic isolated from the actinomycete Dactylosporangium aurantiacum subsp. hamdenensis with potential antibacterial activity.

Streptozocin(链脲菌素) is an antibiotic that is produced by Stretomyces achromogenes.

Dimethylenastron, an Eg5 inhibitor, arrests cells with monopolar spindles to which all chromosomes attach in a syntelic manner.

Mirin is a potent Mre11–Rad50–Nbs1 (MRN) complex inhibitor, and inhibits Mre11-associated exonuclease activity.

BGP-15 dihydrochloride is a nicotinic amidoxime derivative with PARP inhibitory activity.