Serious clinical complications can manifest with cocaine use, such as cocaine use disorder and overdose. Also, adulteration of cocaine with very powerful fentanyl and relevant substances is A significant contributor for the increasing drug overdose deaths. Crack is cocaine which has been processed to create a more strong rock-like substance. https://reddit-cocaine12086.loginblogin.com/34388242/5-simple-statements-about-crack-vs-cocaine-explained