<unk> s are drugs or substances that decrease the flow rate of saliva and their effect is opposite to that of sialagogues. Their origin may be both natural and synthetic. Anticholinergics generally have<unk>  effects, and most produce some level of sedation, both being advantageous in surgical procedures. Classic<unk> s include: * atropine, * opium, * alkalies, * belladonna, * hyoscyamus, * stramonium, * tobacco in excess, * all nauseous or insipid substances.
Antisialagogue
Galactagogue
Proton-pump inhibitor
Cholagogue
Antimetabolite
Secretagogue
Mucoactive agent
Antiglucocorticoid