I've been addicted to oxycodone 30 mg for a better part of 14 years. I just recently switched the fentanyl. I've only been taking fentanyl for about 2 weeks. I just tried coming off the fentanyl the other day and it was a nightmare. I couldn't stop vomiting I had no appetite. I used to be prescribed oxycodone 30 mg but I stopped going to my doctor back in 2017. I've tried Subutex and Suboxone. The longest I would stay on Subutex would be about 3 weeks but I would take an 8 mg pill and cut it into eight pieces so I was only taking 1 mg a day. Then coming off the Subutex was a nightmare for like five days. 