Buprenorphine is a partial opioid agonist — it acts on the same opioid receptors as true opioids but with much weaker effects, so you won’t get high. However, it does reduce withdrawal symptoms including: nausea/vomiting, body aches, fever, diarrhea, irritability, and depression. One monthly injection provides a steady, consistent level without the need for daily pills or frequent clinic visits.