Apoyando La Demencia (Supporting Dementia) is a demo released by Chilean rock band, Sinergia, in 1998.

In 1998 they recorded the rest and finally edited and finished the demo.

[1] This demo was released independently by Sinergia, with their best songs that they have written so far, and a cover of Soda Stereo from their "Canción Animal" album, the song "En El Séptimo Día".

[2][3] The songs "Chupatrón" and "Santiago U.S.A.", also appear in the debut album of the band.

All songs were written by Sinergia, except "En El Séptimo Día".