Modifiers matching stimulant:

• recreational,
• powerful,
• sympathomimetic,
• synthetic,
• illicit,
• immune,
• strong,
• psychoactive,
• harmful,
• illegal,
• pharmacological,
• sexual,
• natural,
• traditional,
• common,
• psychomotor,
• mild,
• medical,
• bitter,
• addictive,
• physical,
• controlled,
• unnatural,
• serious,
• legal,
• ventilatory,
• cardiovascular,
• pharmaceutical,
• simple,
• toxic,
• controversial,
• artificial,
• active,
• biological,
• exogenous,
• prescribed,
• regular,
• harsh,
• popular,
• soft,
• manufactured,
• nervous,
• inert,
• pharmacologic,
• harder,
• cardiac,
• familiar,
• herbal,
• destructive,
• major,
• unhealthy,
• potent,
• dangerous,
• chemical,

Simple categories matching herbal:

• spice,
• soap,
• seasoning,
• plant,
• cocktail,
• substance,
• remedy,
• material,
• pesticide,
• relaxant,
• mixture,
• delicacy,
• scent,
• essence,
• ingredient,
• flower,
• drug,
• oil,
• product,
• powder,
• item,
• simple,
• grouping,
• agent,
• formulation,
• component,
• gum,
• tree,
• preparation,
• extract,
• stimulant,
• cosmetic,
• toxin,