Does pablum help baby sleep longer at night?

My baby wakes up very often for food. I think my breast milk just may not be enough for him anymore.

My parents keep mentioning pablum to me and how it filled us all up so as a result we slept longer.

Has anyone tried this? I was thinking literally a sprinkle in baby’s bottle. It won’t be thick at all. My son just turned 4 months yesterday.