Girl3, Ya know, If I am not mistaken, they make the drug digitalis for heart patients from foxglove, so what would be the big difference if they made a medicine from marijuana that treated PTSD? If it is a relatively safe medicine compared to what is out there now, I am all for it. :)
Prior to the creation of the FDA, drugs were made and sold without any regulations. Morphine and cocaine were common ingredients in many of the drugs, which lead people to addictions, overdosing, and not to mention not really treating the underlying illness. Digitoxin, the medication made originally from foxglove, would never make it to market in this day and age because the blood levels that treat disease are extremely close to the levels that poison. The research required to bring a drug to market requires randomized controlled trials - usually with double blinding (neither the patient nor the doc know what the patient is getting until the study ends.) The drug companies have to prove that the drug actually does something more than placebo, and that the benefits do not outweigh the risks. There are people working on that not only in the US but elsewhere.
The problem with smoking pot at this juncture goes beyond legal issues. Impurities can cause toxic or severe allergic problems. Myeloid-derived supressor cells [MDSCs] basically allow cancers and infections to run rampant, and cannabinoids trigger the massive increase in MDSCs. So while suppression of the immune system in autoimmune diseases where the body is attacking itself is a good thing, the increase in cells that promote cancer is not.
The cannabinoid receptors of the body come in different types: CB1, CB2. CB1 is primarily the brain and the peripheral nerves and is in charge of the calm feeling and decreased pain associated with marijuana. CB2 receptors are immune system modulators, that suppress the immune system. So in certain diseases - like rheumatoid arthritis, Lupus, Grave's disease, MS, etc - the suppression of the immune system by CB activation could be beneficial.
One of the studies I participated in was directed at attaching a radio-active anti-CB1 receptor ligand to all the CB1 receptors in the brain for a very brief period (2.5 hours). [As you can imagine, the effect of anti-CB1 was in of itself, triggering.] The finger-print of those receptors is different in the PTSD brain than in the non-PTSD brain. The next step will be using a synthetic drug that binds only to CB1 receptors, and see the effect on a wider range of PTSD patients. The work so far has only been in very small groups of patients. There are several of these CB1 receptor agonists in the works - one of which is 1000 times more potent than any pot you can find.
CB1 receptors are also in the heart, and may help those with congestive heart failure.
The upshot is that while individuals may be helped by smoing pot, the FDA is in charge of making certain that benefits outweigh risks in large populations. Even the medical pot, the THC compounds, stimulate both CB1 and CB2 receptors - so there are implications in long-term health issues even with those. I have to hold out for the pharmacology companies to finalize a CB1 receptor activator that has a short enough half-life and low-enough potency that I can work. You don't want your anesthesiologist stoned.:O_o: