Sleepiness cannabis

As described in some detail above, Cannabis was used as an analgetic from ancient times up to the end of the 19th century. An early report by Christison is typical he took orally 4 grains of extract for toothache within an hour the pain ceased he noted a pleasant numbness of the limbs, giddiness, sleepiness and a fast pulse [ 121 ]. Numerous other 19th century case reports are available. However, the action was not dependable, not only because of the variability of Cannabis preparations but also due to personal idiosyncracy. Indeed, more recently Ames has reported that, whereas one subject experienced no pain on venepuncture under Cannabis, another found it agonizing [122]. 

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