Good for you that's she feeling better. Never heard of someone using Phenamidine to threat babesia before but it seems like a legit medicine for it.
"Because the drug causes frequent allergic reactions, it is usually combined with an antihistamine"
I recommend to read Jack's full article about treating babesia on this site.

If you are smart you don't hesitate to wait a day to order berenil and doxycycline from this site. So next time you're prepared.
http://www.vetproductsonline.co.za/

good luck