Source: One in 3 prescriptions are never redeemed: Primary nonadherence in an outpatient clinic, Andreas Storm, Stig Ejdrup Andersen, Eva Benfeldt, Jørgen Serup Journal of the American Academy of Dermatology. 59:1, 27-33

The Study

Using the Danish National Electronic Pharmacy Register, which contains all prescriptions issued within the past two years, Storm and associates studied 322 people, who were prescribed a total of 390 medications.

At four weeks after the medications were prescribed, 30.7 percent of the subjects had not filled the prescriptions while most people who did obtain the medication did so within the first week after receiving the prescription.

Older patients and those who were treated by specialists were among those more likely to have filled their prescriptions while those with chronic disorders were less likely (when compared to patients treated for acute diseases).

Commentary

There are no surprises; these findings are in line with those of earlier, similar studies.

These confirmatory results do, however, have practical implications for treatment. For example, given how common it is for large numbers of patients to never begin a prescribed medication, clinicians must always give nonadherence a high priority on the differential diagnosis of any treatment failure.

That importance of that reactive step is clear. In addition, I would also suggest a less obvious, proactive step.

One of the few things worse than one-third of all patients not filling their prescriptions is the clinician not knowing that one-third of his or her patients did not get their prescriptions filled. I believe a solid case can be made for working with patients in such a way a to encourage them to disclose that, in this case, they did not obtain the medications prescribed rather than hide it from their healthcare professional. My take on this matter is part of the post in which I originally suggested this tactic:

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