A sialogogue, sialagogue, ptysmagogue or ptyalagogue is a drug or substance that increases the flow rate of saliva. Sialogogues can be used in the treatment of xerostomia (the subjective feeling of having a dry mouth), to stimulate any functioning salivary gland tissue to produce more saliva. Saliva has a bactericidal effect, so when low levels of...
anything that stimulates flow of saliva
• (n.) An agent which promotes the flow of saliva.
(si-al´o-gog) sialagogue.
Si·al'o·gogue noun [ Greek 
sialagogue, sialogogue 1. Any substance that promotes or stimulates the flow of saliva; also ptyalagogue. 2. A drug or other agent that increases the flow of saliva. Other related saliva and/or spittle units: ptyalo-; salivo-; sput-.sialogogue An agent that promotes the flow of saliva.