narrow-spectrum antimicrobial
targets only specific subsets of bacterial pathogens
broad-spectrum antimicrobial
targets a wide variety of bacterial pathogens
superinfection
secondary infection in a patient having a preexisting infection
dosage
the amount of medication given during a certain time interval
half-life
rate at which 50% of a drug is eliminated from the plasma.
route of administration
method used to introduce a drug into the body
synergistic interaction
when two antibacterial drugs are administered together