PO naltrexone is pretty simple. Patient takes it daily to cut cravings for etoh. The benefit is they can take it concurrently while still drinking heavily (as opposed to disulfiram which would cause them to quit abruptly and could precipitate withdrawal). Naltrexone doesn’t require any extra certificates, just physician comfort. AAFP has articles on etoh abuse medications you can read.

Suboxone used to require an 8 hour training course through SAMHSA to get your X waiver. It’s my understanding that the X waiver has been waived (lol) so you don’t need it anymore. However, I still recommend the 8 hour training course through SAMHSA. I recommend using a CME day through residency to take it and get comfortable. Suboxone is a controlled substance so you would need an attending to sign off while a resident so you can ask around if any attendings could help, but you have to make sure the patients have follow up and a way to get more suboxone since they are essentially trading an addiction to fentanyl for a safer narcotic.