1 Year Child Is G6pd Patient. What Is A Good Substitute Milk Formula? Is It Safe To Give Celin Drops?

my niece is a g6pd patient shes one year old ,?what is a good substitute milk formula for her?and is celin drops( vitamin c ) and ferlin drops(iron) good for her?because for one whole year my sister in law is breasfeeding my niece and now her milk is slowly decreasing,can you please give us a proper diet for my niece with g6pd?