President John F. Kennedy, Jr., might have the most complex history with drugs out of any president in U.S. history.
Like some 42 percent of Americans today, Kennedy tried smoking marijuana during his younger days, according to an ex-girlfriend who knew him during his college years. In a book released last year, she recounts an incident in which Kennedy lit up while on vacation in Jamaica.
Kennedy also took many different prescriptions for a variety of health conditions that he kept secret from the American public. These drugs included "codeine, Demerol and methadone for pain; Ritalin, a stimulant; meprobamate and librium for anxiety; barbiturates for sleep" and more, according to medical records.
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