Cocaine or Crack Users Crack causes a short-lived, intense high that is immediately followed by the opposite—intense depression, edginess and a craving for more of the drug. People who use it often don’t eat or sleep properly. They can experience greatly increased heart rate, muscle spasms and convulsions. The drug can make people feel paranoid, angry, hostile and anxious—even when they aren’t high.
Chart Smart: The A-to-Z Guide to Better Nursing Documentation (Paperback)