“…Besides, buprenorphine is a partial agonist of mu-opioid receptor, so it decreases the level of suicidal desire, depression, dysphoria, anxiety, pain, and opioid withdrawal symptoms. In addition, buprenorphine is a strong kappa receptor antagonist, so it reduces suicidal thoughts, and depression [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29].…”