Buspirone for benzo withdrawal?

For some reason I can't post in r/benzodiazepines or r/drugs or r/benzowithdrawal? But this one look like I can?

My friend (M30) is quitting alprozelam (medical use ) and is quitting at all at once today according to his doctors order, but he isn't supervised and he is being given buspirone? A quick Google suggests it doesn't help with withdrawal? Does it? Has anyone tried it? Is it safe

I've had my own issues with drugs (not benzos) and hearing him quitting just like that with no supervision alone in his room all night scares me

Do I have reason to be scared or is it safe ? Since it isn't an addiction but medical use?

He also has heart arrhythmia and has occasional breathing problems with this. He takes quitiapin for sleep and heart medicine.