Future research design should also look at regular or consistent
administration of antimicrobials to determine if enhanced efficacy
would be achieved with regular sub-therapeutic administrations in
comparison with single acute administrations (Etkin, 2001; Etkin
and Elisabetsky, 2005). As in scheduled antimicrobial therapy, consistent
dosages are required to produce a cidal effect. Such studies
could be carried out with plant extracts or oils in extended time-kill
experiments, where the viability can be monitored over time with
regular dosages.