When did u start putting cereal in baby's bottle

Okim • 27 expecting first child 😊
My LO is 2 months and had reflux since she was about 3 weeks. Her pediatrician prescribed some medicine for her reflux and it was working great. But she has no more medicine and I don't want to give her anymore. The vommiting has come back.  I've read about adding a little cereal to baby's bottle to help with with this. I am definitely thinking about trying it. Has this worked for ur baby ? And if so how old was your baby