anti-suicide
adjective
an·ti-sui·cide 
ˌan-tē-ˈsü-ə-ˌsīd,
ˌan-tī- variants or less commonly antisuicide
: serving or intended to prevent or discourage suicide
anti-suicide counseling
anti-suicide medications
an anti-suicide public service announcement
Word History
First Known Use
1842, in the meaning defined above