No, methamphetamine is not an opioid. Methamphetamine is classified as a stimulant drug because it raises dopamine and norepinephrine levels in the brain. Opioids, on the other hand, are medications that alleviate suffering by changing how the brain processes pain signals and triggering a state of calm and pleasure. Methamphetamine and opiates are extremely addictive and may have devastating impacts on health, but they work in different ways and have different physiological consequences.