The term ‘high’ refers to the euphoric effects of a substance. Euphoria is a common motivator for using addictive drugs like heroin because it makes a person feel good.
Signs of a drug high might include:
extreme happiness
positive sense of well-being
feeling very relaxed and calm
glassy eyes
Buprenorphine generally does not cause a person to get high when taken as prescribed. This is true even after taking a high dose, due to its long-acting mechanism of action and ceiling effect.