Antisialagogue

Antisialagogues are substances that decrease the production of saliva and their effect is opposite to that of sialagogues. Their origin may be both natural and synthetic. Classic antisialagogues include:
 * atropine,
 * opium,
 * alkalies,
 * belladonna,
 * hyoscyamus,
 * stramonium,
 * tobacco in excess,
 * all nauseous or insipid substances.