This figure shows data from a national survey conducted in 1999 by the American Society of Health Systems Pharmacists (ASHP) that evaluated  patient concerns about health systems. This was a random telephone survey of 1,008 adults.

Although the respondents were very concerned about suffering from pain and the cost of filling prescriptions,  they were most concerned about being given the wrong drug or that a drug interaction would occur.  The public in general has a much greater level of concern about ADRs than most health care providers would suspect.

These data demonstrate that drug interactions and reactions are not only a concern to health care providers but to patients as well.

American Society of Health Systems Pharmacists. ASHP Patient Concerns National Survey Research Report.  1999. Bethesda, MD.