My husband was in early recovery, broke his arm and had surgery in December. He later admitted after the first percocet (his DOC) his addiction was back in control. Sadly, he really kept struggling to fully surrender again but he did still go to meetings, talked to his sponsor and met with his therapist - who finally recommended he get the Vivitrol shot for 3 months while still working a program.
For him, he really likes the shot but feels like it's an "artificial recovery" and kind of feels like a failure because he needed help. I am not sure if that is his pride talking or his feelings about his efforts to work his program honestly.
I am not sharing this to scare you, others have done it successfully, my husband just couldn't.