Tracking the Rapidly Changing Synthetic Cannabinoids in "Spice" Products | Research

The takeaway

Analysis of over 140 herbal "incense" products from 2008-2009 showed manufacturers rapidly changed synthetic cannabinoid ingredients in response to new laws, making product contents unpredictable for consumers.

Read this if you want to understand why synthetic cannabis products are dangerous and unpredictable.

140+ products analyzed; synthetic cannabinoid ingredients changed repeatedly to evade bans

What the researchers found

Researchers analyzed over 140 samples of "herbal incense" products (marketed as legal cannabis alternatives) between June 2008 and September 2009.

Initially, products contained CP-47,497-C8 and JWH-018. After Germany banned these compounds in February 2009, manufacturers quickly switched to JWH-073, then to JWH-250 and JWH-398.

The composition of many products changed repeatedly over time in direct response to legal restrictions. This meant neither sellers nor consumers could predict what was actually in the products.

One herbal product marketed as containing "kratom" was found to contain the synthetic opioid O-desmethyltramadol, demonstrating that the practice of spiking "natural" products with dangerous synthetic chemicals extended beyond cannabinoids.

Why it matters

This study documented in real-time how the synthetic cannabinoid market responded to regulation, demonstrating a cat-and-mouse dynamic that made harm reduction nearly impossible for consumers.

The numbers in context

Over 140 samples analyzed over 15 months. Compounds identified: CP-47,497-C8, JWH-018 (banned February 2009), JWH-073 (appeared after ban), JWH-250, JWH-398. One product contained undeclared synthetic opioid.

How the study worked

Analytical chemistry study monitoring over 140 commercially available herbal incense products for synthetic cannabinoid content from June 2008 to September 2009 in Germany.

What this study cannot tell us

German market may not reflect products in other countries. Analytical methods may not have detected all possible adulterants. The study could not assess health consequences of the identified compounds.

How to read the evidence

Systematic analytical chemistry survey providing real-time market surveillance data. Descriptive rather than clinical.

When this study was published

Published in 2010. The synthetic cannabinoid market has expanded dramatically since then, with hundreds of compounds identified and numerous hospitalizations and deaths reported worldwide.

The bigger picture

This paper documented the beginning of what would become a major public health crisis. The rapid substitution of increasingly unknown synthetic cannabinoids in response to bans created a moving target that regulators, clinicians, and consumers could not keep up with.

Questions still open

Can generic drug scheduling prevent the endless substitution cycle? How can consumers be protected when product contents change unpredictably? Are newer synthetic cannabinoids more or less dangerous than the ones they replace?

Common questions

Why are synthetic cannabinoid products dangerous?

Because their contents are unpredictable and change frequently. Manufacturers add undeclared synthetic chemicals that may be much more potent than THC, act as full rather than partial agonists at cannabinoid receptors, and have unknown safety profiles. Standard drug tests cannot detect them.

Are synthetic cannabinoids the same as natural cannabis?

No. While they activate the same receptors, many synthetic cannabinoids are full agonists (vs THC partial agonism), meaning they produce much stronger receptor activation. They can cause severe adverse effects including seizures, psychosis, kidney failure, and death, outcomes rarely seen with natural cannabis.

Read the original research

Monitoring of herbal mixtures potentially containing synthetic cannabinoids as psychoactive compounds.

Journal of mass spectrometry : JMS, 45(10), 1186-94

View on PubMed ↗Publisher’s paper ↗

Citation

Dresen, Sebastian; Ferreirós, Nerea; Pütz, Michael; Westphal, Folker; Zimmermann, Ralf; Auwärter, Volker. (2010). Monitoring of herbal mixtures potentially containing synthetic cannabinoids as psychoactive compounds.. Journal of mass spectrometry : JMS, 45(10), 1186-94. https://doi.org/10.1002/jms.1811