What Pain Professionals Are Saying About Marijuana

/ Thomas Cohn, MD

Marijuana is a controversial topic in society. Some people want it legalized while others demonize the compound. The reality in the medical field is somewhat in the middle. The first thing that needs to be understood is that in most circumstances, medical experts are primarily interested in all the compounds in marijuana except for THC. That means most medical professionals are interested in what cannabinoids or cannabidiols (CBD) compounds are present and what medical purpose they serve. The major compound that is present in almost all available marijuana is THC, which also happens to be the compound responsible for the high one receives from marijuana.

For pain professionals, there is good understanding of the action and effects of THC. Most strains available in states that have legal marijuana, including strains that are “medicinal” in use have high amounts of THC, 10% or greater in amount, and virtually no other cannabidiols, or less than 2%. In the years of the hippie generation, the 1960’s and 1970’s, THC to CBD ratio was 1:1, and averaged 1-2%, while the really good stuff was just around 5%. Now available in legalized states, most available strains are minimum of 10% with up to 30% THC.

Medical Marijuana

Medically, the best comparison of legal marijuana at this time, is to alcohol. The risk of dependence to THC is about 9%, including when using once a week (in reality this is a very strong way to become dependent), compared to alcohol which is 15%. Regular use, once a week, is known to increase depression, suicide, impulsivity, schizophrenia and psychosis, especially if use is started under the age of 20. It also leads to an 8-point loss of IQ in the young. Further, smoking does cause problems with the lungs. Recommending regular marijuana is no different for medical professionals to recommending drinking alcohol. The risks and associated problems are clearly out numbering benefits.

Need To Understand More

What we know about cannabidiols is just the beginning. In marijuana, we know there are over 100 different types. Our experience so far has found that they have some properties that may be helpful in about 30% of patients with neuropathic pain associated with MS and HIV. In low back pain, we’ve learned:

  • It has helped in anxiety but not with pain.
  • More people respond to acetaminophen then marijuana.

The future of cannabidiols is interesting for pain. It is unlikely that many professionals would be enthused to prescribe a substance that has the risk profile of THC. Once we can find the particular cannabidiols that have medical uses, it is likely that we will try to study them fully and make them commercially available for specific conditions. Cannabidiols may be helpful in the future, but we still don’t know enough right now to safely prescribe marijuana for a wide range of conditions.