Congratulations you solved half of your birds problem. Keep it up! Soon you could be helping others. That's why I like this BYC network, it helps to save lives. Don't forget to put glucose in their water cos you might not know when she'll need extra energy to overcome her weakness.
When raising chickens keep record of all the symptoms and medications you come across cos it will help you in the future, and your vet will find it easy to solve complicated symptoms.
I think you would agree with me, that your friends' chicks died sterving.