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Dr. Raphael Mechoulam

The Magazine: Dr. Raphael Mechoulam

Considered the “Godfather of Cannabis,” Dr. Raphael Mechoulam is an award-winning Israeli organic chemist who has been studying the plant for over 50 years. Dr. Mechoulam is best known for discovering the Endocannabinoid System and first isolating the two primary compounds, CBD and THC. He is a professor of Medicinal Chemistry at the Hebrew University of Jerusalem in Israel and has published over 350 scientific articles, primarily focused on the chemistry and pharmacology of cannabinoids.

What inspired your early work in cannabis over 50 years ago?

I am a natural product chemist and I’m interested in the chemistry of natural products. Cannabis is a natural product and I was surprised to see that while morphine had been isolated from opium a hundred years previously, the chemistry of cannabis was not well known. Very distinguished chemists had been looking at cannabis in the 1930’s but the active compounds had never been isolated in pure form, and therefore the full structure was not known and it was not available for research. It looked like a promising field to go into.

What was the first thing you discovered about the cannabis plant?

We first looked at cannabidiol, known as CBD. Cannabidiol is a compound that does not cause the “high” but is a major constituent of the plant. In the 1930’s it had been isolated by Roger Adams in the U.S. and Lord Alex Todd in the UK but its structure was not well known so we started there. We reisolated cannabidiol from Lebanese hashish that was supplied to us by the police. Using modern methods, we elucidated its structure and we did the same with THC in its pure form. Since then it has been known to be available for research.

In your own words how do you describe the Entourage Effect?

We saw quite early in the game that while cannabinoids have activity, the activity is frequently modified by additional compounds that may not have any activity at that time. So we found a few cases like that, and we called it a French name, the “Entourage Effect.” People use the term “Entourage Effect” to describe the fact that the effect of one cannabinoid differs from the effect of the whole plant. But unfortunately, very little work has been done on the actual mechanism of the Entourage Effect so there is still a lot about it that we don’t yet understand.

What is the Endocannabinoid System?

The Endocannabinoid System is a major system in our body. As a matter of fact, a researcher published in the National Institute of Health stated that this system is involved in almost all pathological conditions, which is a very strong statement.

In your opinion what is the difference between medical and recreational cannabis?

There is a major difference between cannabis and medical cannabis. Medical cannabis should be used according to medical rules. We don’t have enough clinical data, so at the moment medical cannabis is used on the basis of individual reports mostly. I assume within a few years we should have enough modern clinical data so that cannabis can be used according to medical rules.

Recreational cannabis is a social issue. If a state or a country wants free recreational cannabis, then they have to vote for it and if there is a majority then it will be approved. It doesn’t have anything to do with the medical side. It doesn’t make any sense to say that recreational cannabis should be legal because it helps children with epilepsy. These are two completely different things. Recreational cannabis is a social issue. And as the population of most countries have decided, most things are open for recreational use, like tobacco and alcohol. All of these things are known to affect our body and they are approved because the population thinks that they should be approved. The same is true for recreational cannabis. I’m not involved at all with recreational cannabis. I’m involved in the scientific medical side of cannabis and it is much more than just the plant material.

What’s the biggest risk to the future of cannabinoid products?

At the moment I’m not happy that quite a lot of the products that are being sold are not well formulated and we don’t know the amount of material that is present in them. Like with any other medication, you should know exactly what you’re taking. With cannabis, unfortunately, not all producers do that. One can obtain material and it doesn’t always say what the levels are of the constituents.

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What aspect of your work are you most proud of?

The most important aspect of my work is probably the discovery of Anandemide, a compound we named after Ananda, meaning “bliss” in Sanskrit. Anandemide is an endogenous compound that is involved in a large number of biological reactions. I believe that it will affect and explain many of the things that are happening in our body.

If you had unlimited time and resources for research, what would you do?

I would probably do what I’m doing today.

Editor's note: interview conducted on July 12, 2018 and edited for length and clarity.

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