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

http://news.google.com/news?pz=1&ned=us&hl=en&q=oregon+medical+marijuana

Medical marijuana in Oregon: Benton Mackenzie, dying Iowa man convicted of ... - The Oregonian - OregonLive.com

- Tue, 09 Sep 2014 20:49:01 GMT


CBS Local

Medical marijuana in Oregon: Benton Mackenzie, dying Iowa man convicted of ...
The Oregonian - OregonLive.com
(Mackenzie is an Oregon medical marijuana patient and made a trip to Portland in July to try various cannabis products in his cancer fight. Oregon is the only state in the country that allows out-of-staters to enroll in its medical marijuana program ...
Iowa cancer patient avoids prison for growing medical marijuanaAl Jazeera America
Cancer Patient Avoids Prison For Growing MarijuanaCBS Local
Judge to sentence cancer patient in marijuana caseseattlepi.com

all 117 news articles »

Blumenauer, Marquis debate whether Oregon marijuana law is already ... - The Oregonian - OregonLive.com

- Sun, 14 Sep 2014 06:39:33 GMT


Portland Tribune

Blumenauer, Marquis debate whether Oregon marijuana law is already ...
The Oregonian - OregonLive.com
At the same time, he added, almost any adult can get a medical marijuana permit and legally possess up to a pound and a half of the drug. blumenauermarquissalem.JPG Rep. Earl Blumenauer, D-Oregon, left, and Clatsop County District Attorney Josh ...
No, Josh Marquis, A Marijuana Ticket Ain't Like A Speeding TicketThe Weed Blog (press release) (blog)
Marijuana legalization: Pros and consPortland Tribune
Legal pot debate fires up state officialsThe Register-Guard

all 15 news articles »

Medical marijuana in Oregon: State orders 9 illegal dispensaries to shut down - The Oregonian - OregonLive.com

- Mon, 08 Sep 2014 17:54:00 GMT


The Weed Blog (blog)

Medical marijuana in Oregon: State orders 9 illegal dispensaries to shut down
The Oregonian - OregonLive.com
Under state law, the name of the person registering a medical marijuana facility is not subject to public disclosure. Tok, 8001 S.E. 72nd Avenue, Portland. The state sent a letter dated Aug. 26 to the registered agent, Daniel Pounds, saying inspectors ...
Medical Marijuana Dispensaries Closed/Fined In Oregon For 'Serious Violations'The Weed Blog (blog)
Oregon Warns Unlicensed Medical Marijuana Dispensaries To CloseNorthwest Public Radio
Oregon orders 9 marijuana dispensaries to closeBradenton Herald

all 58 news articles »

Medical marijuana in Oregon: Dispensary pays thousands in civil penalties for ... - The Oregonian - OregonLive.com

- Fri, 05 Sep 2014 17:06:01 GMT


GoLocalPDX

Medical marijuana in Oregon: Dispensary pays thousands in civil penalties for ...
The Oregonian - OregonLive.com
Operators of Portland Compassionate Caregivers, a medical marijuana dispensary located at the corner of Southeast Gladstone Street and Southeast Cesar E. Chavez Boulevard, paid $6,500 in civil penalties for multiple "serious" violations of state rules.
OHA levies its first fines on marijuana dispensariesStatesman Journal
Oregon Fines, Closes Pot ShopsGoLocalPDX

all 5 news articles »

Marijuana news: Is cheaper medical pot to blame for Colorado's lagging ... - The Oregonian - OregonLive.com

- Wed, 03 Sep 2014 13:45:57 GMT


Philly.com

Marijuana news: Is cheaper medical pot to blame for Colorado's lagging ...
The Oregonian - OregonLive.com
Medical marijuana consumers, it turned out, stuck with the medical market, reported Ingold. The findings could have implications for Oregon, where voters will weigh a legalization initiative in November. Oregon, too, has a robust medical marijuana ...
Legalization Leaves Some Parents Wondering How To Talk To Children About PotTimes Record

all 141 news articles »

Medical marijuana in Oregon: Hundreds of pot growers to meet in Portland on ... - The Oregonian - OregonLive.com

- Fri, 22 Aug 2014 03:23:56 GMT


KVAL

Medical marijuana in Oregon: Hundreds of pot growers to meet in Portland on ...
The Oregonian - OregonLive.com
Medical marijuana farms, like this one in southern Oregon, fall under the Oregon Medical Marijuana Program. Hundreds of Oregon's medical cannabis growers will meet Friday to network and learn about the legalization initiative that will appear on the ...
Policy will determine economic impact of legal marijuana, says sociologistMedical Xpress

all 4 news articles »

Oregon Will Vote to Legalize Recreational Marijuana - Guardian Liberty Voice

- Mon, 01 Sep 2014 14:38:38 GMT


Guardian Liberty Voice

Oregon Will Vote to Legalize Recreational Marijuana
Guardian Liberty Voice
At present, the state allows use of cannabis only for medicinal purposes. The Medical Marijuana Program which started as early as 1998 had already made pot user-friendly by legalizing the dispensaries. At last count, Medical Marijuana Cards have been ...
The Desperate Lies of Josh Marquis, Part III: Stoned Mayhem on the FreewaysThe Weed Blog (blog)
Will Traffic Deaths Rise as States Legalize Pot?ABC News

all 304 news articles »

Oregon Medical Marijuana Dispensary Inspections Begin - The Weed Blog (blog)

- Mon, 18 Aug 2014 16:59:30 GMT


The Weed Blog (blog)

Oregon Medical Marijuana Dispensary Inspections Begin
The Weed Blog (blog)
ommp oregon medical marijuana clinic The Oregon medical marijuana industry has been very entertaining to watch. Oregon started its medical marijuana program in 1998. Medical marijuana dispensaries and delivery services started in the 2000's, and were ...

and more »

Medical marijuana in Oregon: Hundreds of pot growers meet in Portland to talk ... - The Oregonian - OregonLive.com

- Fri, 22 Aug 2014 17:02:22 GMT


Medical marijuana in Oregon: Hundreds of pot growers meet in Portland to talk ...
The Oregonian - OregonLive.com
What is likely to be the largest ever gathering of Oregon medical marijuana growers is about to get underway in downtown Portland. The event, organized by Amy Margolis, a Portland attorney, has drawn a crowd of about 300. Margolis is behind an effort ...

and more »

Beaverton Planning Commission approves regulations for medical marijuana ... - The Oregonian - OregonLive.com

- Thu, 11 Sep 2014 06:01:42 GMT


Beaverton Planning Commission approves regulations for medical marijuana ...
The Oregonian - OregonLive.com
Beaverton Planning Commission voted to allow medical marijuana dispensaries in three city zones at its Sept. 10 meeting. At the meeting, commissioners evaluated several maps and approved medical marijuana dispensary regulations about zoning, buffers ...