Anyone’s baby on Alimentum?

Lauren

My baby is 5 weeks old. Last Monday she was switched from exclusively breast feeding to Similac Alimentum. She has had less crying episodes but she is still vomiting a significant amount and her poop is dark green with what looks like black in it & mucus. Is this normal for Alimentum? Doctor said her body needs 2 weeks adjust but just looking to see how other babies responded to it. She said if this doesn’t work the next step would be Pure Amino.