Mostcytotoxicchemotherapydrugsexerttheireffectbyinhibitingoneormoreoftheprocessesinvolvedincellpision.Itappearsthatthefateofcellsdamagedbychemotherapyistodieprimarilybyinductionofapoptosis(prograrmnedcelldeath).Chemotherapyisgenerallyusedtotreatcanceratanadvancedorearlystage.