Cannabis has been used as a medicine for thousands of years, all over the world.  In the 19th and early 20th centuries, it was widely used in western medicine. Cannabis prohibition forced cannabis outside of legal  medicine, and severely limited research opportunities.
Illustration Cannabis Sativa

Below you will find some interesting information on the plant's unique chemical constituents, called cannabinoids, and about the different strains of the plant and their therapeutic effects.

Cannabinoids:

Cannabis contains hundreds of chemical constituents, with over 60 cannabinoids, which are specific to cannabis. Each strain of cannabis contains different ratios of cannabinoids,  which together work synergistically to provide its therapeutic effects. The human body has endogenous cannabinoid receptor sites in its nervous and immune systems throughout the body.

It is not conclusive exactly what each cannabinoid does, and how they interact. The following information comes from limited research, and in part from Marijuana Medicine, Christian Ratsch, 2001.

  • The main cannabinoid in cannabis is delta-9-tetrahydrocannabinol (THC). THC has psychoactive, euphoric, stimulant, muscle-relaxing, anti-epileptic, anti-emetic, anti-inflammatory, appetite stimulating, bronchiodilating, hypotensive, antidepressant, and analgesic effects. High potency cannabis contains at least 15% THC.
  • Cannabidiol (CBD) is another main cannabinoid. CBD lessens the psychoactive effects of THC, and has sedative and analgesic effects.
  • Cannabichromene (CBC) promotes the analgesic effects of THC and has sedative effects.
  • Cannabigeral (CBG) has sedative effects and antimicrobial properties, as well as lowers intraoccular pressure. It is the biogenetic precursor of the other cannabinoids.
  • Cannabinol (CBN) is a mildly psychoactive degradation of THC; its primary effects are to lower intraocular pressure and anti-epileptic.

Cannabis Strains:

There are two main families of cannabis plants, INDICA and SATIVA. There are many strains of the plant, some pure Indicas, some pure Sativas, and others crosses of the two. Each strain of cannabis contains different ratios of cannabinoids, thus giving them a unique therapeutic effect.

Sativas:

Generally, the Sativa plant is a taller and lankier variety,  characterized by narrow serrated leaves and loose spear-like flower clusters that can be extremely resinous.

The primary effects of Sativas are on the mind and emotions. These benefits can be particularly helpful for the psychological aspects of many illnesses, giving people an increased sense of well-being. Due to the stimulating nature of Sativas, they are generally better for daytime use. Caution should also be taken for people experiencing hightened anxiety or those with mental health conditions.

Some therapeutic uses of Sativas:

  • Reduces depression, elevates mood
  • Relieves headaches and migraines
  • Energizes and stimulates
  • Increases focus and creativity
  • Reduces nausea
  • Stimulates appetite

Indicas:

Indica plants are normally shorter and stockier plants than Sativas. They have wide, deeply serated leaves and a compact and dense flower cluster.

The effects of Indicas are predominantly physical and sedative. Due to the relaxing nature of Indicas, they are best used for non-active times of the day, and before bed.

Medical Marijuana Flower
Some therapeutic uses of Indicas:

  • Reduces pain
  • Relaxes muscles
  • Relieves spasms
  • Reduces inflammation
  • Aids in sleep
  • Reduces anxiety and stress
  • Reduces nausea
  • Stimulates appetite
  • Relieves headaches and migraines
  • Reduces intra-ocular pressure
  • Anti-convulsant
  • Reduces seizure frequency

Cross Strains:

Hybrid strains are the result of cross pollination of various strains. The characteristics, and hence the effects, of one strain will usually be dominant. 
  • An Indica-dominant cross will be effective for pain relief, with the Sativa component helping with energy and activity levels. Such a strain is ideal for daytime pain relief.
  • A Sativa-dominant cross will be helpful in stimulating the appetite, with the Indica component increasing muscle relaxation. This strain would be ideal for daytime appetite stimulation.
  • All strains of cannabis may increase appetite and reduce nausea, however crosses are reported to work most effectively.

oregon medical marijuana - Google News

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Medical marijuana in Oregon: Pot growers form political action committee - The Oregonian

- Tue, 15 Apr 2014 17:52:20 GMT


KVAL

Medical marijuana in Oregon: Pot growers form political action committee
The Oregonian
Medical marijuana farms, like this one in southern Oregon, fall under the Oregon Medical Marijuana Program. A group of growers has formed a political action committee to push for regulation and protection for Oregon's cannabis growers.
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Strict medical marijuana restrictions may hinder those in need - Oregon Daily Emerald

- Thu, 17 Apr 2014 05:05:22 GMT


Oregon Daily Emerald

Strict medical marijuana restrictions may hinder those in need
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Oregon junior and California native Matt Zebro was approved for a California medical marijuana card in April 2012 as a high school senior to help manage his chronic stress issues, which worsened when his mother was diagnosed with cancer. Now living in ...

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Marijuana Advice from Washington to Oregon - The Portland Mercury

- Wed, 16 Apr 2014 23:37:17 GMT


International Business Times

Marijuana Advice from Washington to Oregon
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Medical marijuana in Oregon: Which cities have moratoriums on dispensaries? - The Oregonian

- Mon, 14 Apr 2014 19:21:07 GMT


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A controversial law, passed in the legislative session this year, gives local governments the ability to impose moratoriums on medical marijuana retailers through May 1, 2015. Those temporary bans must be enacted by May 1. The law also gives local ...

Medical marijuana in Oregon: East County cities considering one-year ... - The Oregonian

- Wed, 09 Apr 2014 21:36:06 GMT


Yahoo News

Medical marijuana in Oregon: East County cities considering one-year ...
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Marijuana News: Legalization, THC testing and Oregon moratoriums - Statesman Journal

- Tue, 15 Apr 2014 11:22:42 GMT


Marijuana News: Legalization, THC testing and Oregon moratoriums
Statesman Journal
... when they are ovulating, according to the Columbian. The research raises some interesting questions about proper dosages for female medical marijuana users, but human testing is a long way off if current federal laws around marijuana remain in place.

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Ore. Cities, Counties Enforce Medical Marijuana Dispensary Moratoriums - OPB News (blog)

- Sat, 12 Apr 2014 15:36:34 GMT


Ore. Cities, Counties Enforce Medical Marijuana Dispensary Moratoriums
OPB News (blog)
County commissioners and city councils are scrambling to pass medical marijuana dispensary moratoriums that comply with state law by the May 1 deadline. Senate Bill 1531 legalizes medical marijuana dispensaries in Oregon, but it also empowers counties ...
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Medical marijuana in Oregon: State backs off ban on pot-infused sweets - The Oregonian

- Tue, 01 Apr 2014 13:58:14 GMT


Medical marijuana in Oregon: State backs off ban on pot-infused sweets
The Oregonian
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Here's the drill under Oregon's new medical marijuana dispensary law - The Oregonian

- Tue, 08 Apr 2014 01:10:00 GMT


The Republic

Here's the drill under Oregon's new medical marijuana dispensary law
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Medical marijuana in Oregon: Health authority issues first batch of dispensary ... - The Oregonian

- Sat, 22 Mar 2014 13:36:35 GMT


The Weed Blog (blog)

Medical marijuana in Oregon: Health authority issues first batch of dispensary ...
The Oregonian
The Oregon Health Authority on Friday announced it had issued licenses to eight medical marijuana dispensaries. ?For the first time, a legal and regulatory structure is in place to govern the operation of dispensaries,? said Tom Burns, who oversees the ...
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