The heart attack stats are likely incorrect. An international WHO study on cocaine[0] concluded:

  "A majority of health consequences may not be directly attributed to cocaine use. Cocaine often contributes to or exacerbates the conditions reported, rather than causing them."

  "Few experts describe cocaine as invariably harmful to health. Cocaine-related problems are widely perceived to be more common and more severe for intensive, high-dosage users and very rare and much less severe for occasional, low-dosage users."

0. https://www.tni.org/files/article-downloads/2007030814092750...