13 January 2015 20 6K Report

We have been tracking street prices of opioids in the United States, with the hope that they may be useful to both clinicians and researchers in determining optimal Dx, Tx and Rx strategies for SUBSTANCE USE DISORDERS (e.g. some clinicians are reluctant to prescribe buprenorphine because they know that patients can sell it at substantial value, etc) 

We have found, for example, that oxycodone in almost any formulation (e.g. mixed with acetaminophen as brand name Percocet) costs about $1/mg almost everywhere in the US; in pure form (instant release) it can cost more in low doses (e.g. a 30mg pill of oxycodone can cost as much as $50 but usually costs $30) and in high doses (e.g. an 80mg pill of oxycodone sold as Oxycontin with OROS REMS "abuse" prevention costs only $50 as it is not easily converted into an IV formulation).  By contrast, the street price of tramadol is low, but so is its relative psychoactive effect on a per-milligram basis (orally).  

The dataset is small now, but our hypothesis is that (at least with opioids) STREET PRICES reflect the IV-morphine-equivalence of a dose of an opioid, and thereby its "desirability" for misuse by an individual with opioid use disorder (DSM Dx 304.xx, ICD-10 F-11.20).

Does anyone have anecdotal or statistical data they could (or would) contribute to this dataset?  Likewise, we are interested in the addiction medicine community's opinion of the value of tracking street prices as a predictor of misuse potential.

This data will also be used to study the prevailing view (in the popular press and some academic articles) that pharmaceutical opioid users switch to "illegal" (Schedule I in the US) opioids (primarily diacetylmorphine) because they are cheaper for the same morphine-equivalent dosage.

Our goal is to create a "live" street price dataset that will be freely available to researchers and clinicians.  The difference between the retail price of pharmaceutical opioids and their street prices is substantial - often by an order of magnitude.  Again, the hypothesis is that street prices reflect "demand" which reflects the misuse potential.  We also think this could be useful clinically, for both addiction medicine and pain management - clinicians should be aware when, for example, they prescribe a bottle Percocet 10/325 TID #90, which has a street value of $900, but costs a Medicare (part D) patient only $10 at the pharmacy.

[NB1 Buprenorphine defies this rule - it's morphine-equivalency is low as it is an agonist/antagonist etc, but it still costs $8 on the street for an 8mg pill.  Any theories here?  NB2 We define "street" as anything other than legal pharmacy purchases; obviously, this data is reported by SUD patients/ISDs but we see such little variation that we believe it is accurate.  We also don't see why a patient would exaggerate or minimize this cost when speaking with their caregiver/clinician.  ALL FEEDBACK WELCOME.]

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