Addiction

17 April 2014

Free samples may lead to expensive prescriptions

Generic drugs are cheaper than brand name drugs and branded generics, but dermatologists who receive free samples tend to prescribe the more expensive drugs.

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Dermatologists who receive free drug samples are more likely to give their patients prescriptions for expensive medicines, a new study says.

Researchers looked at data on prescriptions for adult acne medications written in 2010 by dermatologists across the United States.

For a single visit, the average retail cost of prescriptions for patients whose doctors received free samples from drug makers was about $465, compared with about $200 for patients whose doctors did not receive free samples, the study found.

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'Branded generics'

Brand name drugs and "branded generics" – off-patent drugs that have different dosages or new formulations and are sold under a new name – accounted for 79% of prescriptions written by dermatologists nationwide, the study showed.

In contrast, such drugs only accounted for 17% of prescriptions written by doctors at an academic medical centre that doesn't allow its doctors to accept free drug samples, researchers found.

Brand name drugs and branded generics have similar retail prices, while generic drugs are cheaper, noted the authors of the study published in the journal JAMA Dermatology.

Cost difference between drugs

Among other medical specialties, the percentage of prescriptions written with a free drug sample decreased from 7% in 2001 to 4% in 2010, according to study background information. But the percentage increased among dermatologists during that time, from 12 percent to 18 percent, the new study found.

"Physicians may not be aware of the cost difference between brand-name and generic drugs, and patients may not realize that, by accepting samples, they could be unintentionally channelled into subsequently receiving a prescription for a more expensive medication," study senior author Dr Alfred Lane, emeritus professor of dermatology and of paediatrics at Stanford University, said in a university news release.

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He and his colleagues said their findings contribute to the debate about whether free drug samples are helpful or cause doctors to favour more expensive brand name drugs instead of generic drugs, thereby increasing costs for patients and health insurers.

Free drug samples

Previous research has found that drug companies give about $16 billion in free drug samples to doctors every year, the news release noted.

"Many physicians believe that free samples have both benefits and drawbacks," study first author Michael Hurley, a Stanford medical student, said in the news release.

"Primarily, they feel that the samples give them more freedom and flexibility to help people who are uninsured, or with less financial means," Hurley said. "But the national data don't really support that. Those people are not the ones who are typically getting these samples."

Image: Prescription drugs from Shutterstock


Read more:

Prescription drug abuse epidemic
Prescription misuse starts at home
Over-the-counter and prescription drugs





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