Methamphetamine doesn’t just spike levels of the pleasure-inducing hormone dopamine in the reward pathways of the brain – it ...

Methamphetamine is a potent stimulant in the same class of drugs as cocaine, but it’s far stronger, with effects that can ...

Millions of U.S. drug users now are addicted to several substances, not just opioids like fentanyl and heroin. The shift is making treatment far more difficult. Most people addicted to opioids also ...