How much formula should I feed my 18 week old?

Sacha

My daughter is dairy free due to medical reasons and therefore has aptimil pepti 1 milk prescribed for her. How many ounces should she be having a day?

I’ve been giving her between 24 and 28 a day so far in 4 to 5oz amounts every 3 ish hours unless she is super hungry.

When she was weighed at 17 weeks 3 days she weighed 15lb 8oz which seemed heavy