The worldamp;rsquo;s only known official pharmaceutical cannabis product has been gaining momentum as it continues to get approval from many of the worldamp;rsquo;s leading health bodies and isnamp;rsquo;t far off from becoming an official pharmaceutical medicine in the USA. Sativex is an oral spray made by cooking up a batch of freshly harvested cannabis with a few other ingredients at GW Pharmaceuticalamp;rsquo;s UK based grow facility.