NIDA supports analysis to forestall, take care of, and decrease the harms connected with methamphetamine use and use disorder, including scientific tests that: Methamphetamine is most frequently smoked but may also be snorted, injected, or administered orally3 or rectally.4 Methamphetamine use leads to amplified alertness and talkativeness and diminished appetite, https://www.sgvascularctr.com/what-is-clacs/