Cannabis potency increases

Meanwhile, the potency of home-grown Cannabis products quickly increased. Word spread rapidly that some of the marijuana from Hawaii and California was superb. By 1977, many people were paying up to 250 an ounce for "Hawaiian, which was about as expensive as Cannabis ever got. 

In India and other areas with long marijuana experience, Cannabis is often made into something like a milkshake (bhang) or a kind of candy (most commonly known as majoun). These methods give effects, but experience has shown that if marijuana is to be ingested, its potency can be increased considerably by cooking it first in oil at low temperatures for about fifteen minutes. 

Concerns have been raised about the possible adverse effects of acute as well as chronic medicinal and recreational use of cannabis on cognition and the body (104). The author, while acknowledging the therapeutic role of cannabinoids in the management of pain and other conditions, expressed concern that in recent years the prevalence of recreational cannabis use (especially in the young) and the potency of the available products have markedly increased in the UK. 

Segelman, A.B., and Sofia, R.D. "Cannabis saliva L. (Marijuana) IV Chemical Basis for Increased Potency Related to Novel Method of Preparation. Journal of Pharmaceutical Sciences 62 (1973) 2044. 

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