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Marijuana could potentially help cancer patient role who have nausea or infliction , and could possibly even be used as a treatment for certain cancers , but much more research is need before any of these uses could be recommended , a new review clause say .
There is promisingresearch on marijuanause in the field of cancer medicine , but many of the studies that have been done are outdated , looked at only a small turn of hoi polloi or were conducted in animals , tell Dr. Tina Rizack , a co - generator of the critical review and an oncologist at Women & Infants Hospital in Providence , Rhode Island . This leave questions about how that enquiry may apply to human patients .
For now , the drug is n’t recommended as a first - personal credit line treatment for any cancer or cancer - related side effect , but as legalization of , admittance to and explore on marijuana increase , this may exchange , the researchers tell .
" As [ marijuana ] becomes more uncommitted , patients will ask more questions about its healing note value , and , hopefully , more research will be done to answer these questions , " Rizack told Live Science . [ 11 Odd Facts About Marijuana ]
In the review , the researchers describe several studies that suggest the man-made mannikin oftetrahydrocannabinol ( THC ) — the fighting ingredient in marijuana — had some anti - nasuea and anti - vomiting effect . For model , one discipline of 600 Cancer the Crab patient found that the compound nabilone ( a man-made shape of THC ) was near at preventing sickness and emesis than were several existing anti - nausea medications .
However , newer and more effective anti - nausea medication have come out since these study were publish , Rizack said , and studies have yet to equate synthetical marijuana to these newfangled medications .
In addition there are no studies that compare fume marijuana to these newer anti - nausea medications . For this ground , marijuana compounds are used only in Crab patients who are n’t helped by current anti - nausea or anti - vomiting medications , the limited review say . ( This could find in areas wheremedical marijuanais legal . )
Some studies have also suggested that compound in marijuana may be helpful for cancer pain in the neck . For example , a humble study of 36 cancer affected role institute that 10 mg of THC produced pain - relieve effects comparable to those of 60 magnesium of the opiate codeine .
Another study of nabiximols ( brand name Sativex ) , a " marijuana mouth spray " that contains both THC and another compound called cannabidiol , found that scummy and medium Cupid’s disease of the spray had better pain - relieving effects than a placebo . This solvent was found in cancer patients with pain who had not been helped by taking opioid drugs .
Although current research is n’t enough to recommend marihuana or THC as a first - line treatment for Crab annoyance , the results propose the drug might be good as an " add - on " medication , used in combination with other treatments , the reassessment said .
Finally , some studies suggest that hemp has potential as a genus Cancer treatment itself , although results have been conflicting , and these studies have mostly been done in animals , the followup said .
But one study has count at the effects of tetrahydrocannabinol on Crab in humans . This belittled study , conducted in Spain , involve nine patients who had a type of tight - growing brainpower cancer ; these patients had had not been help by other treatments for their cancer .
The researchers injected THC directly into the brain tumors , and the drug appeared to decrease tumour growth in at least two of the patients . However , the discipline was not designed to assess the strength of the treatment , and there was no control group ( or group of patients who did not find the treatment ) , so the researchers could not limit if the effect were due to chance .
Overall , compound in marijuana are fairly good , and overdose is unlikely , the researchers said . The drug ’s side effects can admit disorientation , drowsiness , vertigo and poor concentration , the review say . Some studies have found that THC has more of a sedating core than does codeine , but it has not been set up to slow breathing rate , the inspection sound out .
" More research is necessitate in all areas related to the alterative employment of cannabis in oncology , " the investigator conclude .
The critical review is write today ( March 17 ) in the journal JAMA Oncology .
