nonmedication
nondrug
nonchemical
nonstimulant
noninhibitor
nonintoxicant
nonantibiotic
nonsynthetic
noncontaminant
nonester
nonpharmaceutical
nonpharmacological
nonbiodegradable
atoxigenic
atoxicogenic
nonproprietary
over-the-counter drug
over-the-counter medicine
nonvitamin
noncarcinogen
bioinorganic
nonsedative
soft drug
nonsubstance
placebo
nonacid
succedaneum
nonherbicide
nonmedicinal
nonalkaloid
unmedicinal
nonsteroid
unmedically
nonabrasive
nontoxic
nonototoxic
noncarotenoid
nonpollutant
snake oil
medicament
nonbiological
nonself
nonnarcotic
nonglucocorticoid
nonresin
nonplacebo
nonflammable
nonopioid
alleviative
nonbarbiturate