Complex sentence: GW Pharmaceuticals is a Biopharmaceutical company that patented the first prescription medicine derived from Cannabis sativa the product is trademarked by the name of Sativex ® and it's currently being used for the treatment of Multiple Sclerosis and chronic pain.
Split into simpler sentences: GW Pharmaceuticals is a Biopharmaceutical company that patented the first prescription medicine derived from Cannabis sativa. The product is trademarked by the name of Sativex ® and is currently being used for the treatment of Multiple Sclerosis and chronic pain.