Cannabis Oil : chemical evaluation of an upcoming cannabis-based medicine Luigi L. Romano, Arno Hazekamp Cannabinoids, 2013, 1, (1), 1-11 © International Association for Cannabinoid Medicines   Abstract Concentrated cannabis extracts, also known as Cannabis oils because of their sticky and viscous appearance, are becoming increasingly popular among self-medicating patients as a claimed cure for cancer. In general, preparation methods for Cannabis oils are relatively simple and do not re-quire particular instruments. The most well-known example of such a product is called ‘Simpson oil’. The purpose of the extraction, often followed by a solvent evaporation step, is to make canna-binoids and other beneficial components such as [...]