company traded as nasdaq gwph lse gwp industry pharmaceutical founded 1998 founder geoffrey guy and brian whittle headquarters porton down science park united kingdom 1 key people justin gover 2 products sativex revenue 33.8 million 2001 3 divisions biotechnology website www.gwpharm.com gw pharmaceuticals is a british biopharmaceutical company known for its multiple sclerosis treatment product sativex nabiximols brand name sativex . sativex is the first natural cannabis plant derivative to gain market approval in any country . 4 another cannabis based product epidiolex for treatment of epilepsy underwent phase 3 clinical trials in 2015 . 5 6 contents 1 history 1.1 background 1.1.1 hortapharm 2 marketed products 2.1 sativex 3 products in development 3.1 epidiolex 4 see also 5 references 6 external links history edit background edit doctors geoffrey guy and brian whittle founded gw pharmaceuticals in 1998 . that year they obtained a cultivation license from the united kingdom home office and the mhra allowing gw pharmaceuticals to cultivate cannabis from seeds and clones to conduct scientific research concerning the medicinal uses of the plant . 7 8 hortapharm edit in july 1998 gw pharmaceuticals collaborated with hortapharm b.v. a cannabis research and development business based in the netherlands 9 founded by two expert horticulturists from california 10 robert connell clarke 11 and david paul watson also known as sam the skunkman . 12 hortapharm grew medicinal strains for the dutch government . 13 14 15 16 marketed products edit sativex edit main article nabiximols nabiximols trade name sativex is a botanical drug that is a cannabis extract administered as a mouth spray ; it was approved in the uk in 2010 as a treatment for multiple sclerosis ms patients to alleviate neuropathic pain spasticity overactive bladder and other symptoms . 17 nabiximols is made with two unknown cannabis strains and is extracted with ethanol and carbon dioxide . 18 19 in 2011 gw pharmaceuticals concluded a partnership with bayer for the distribution of sativex in the uk 20 and have an estimated annual production of 100 tons of medicinal cannabis since 2012 . 21 products in development edit epidiolex edit in 2015 gw pharmaceutical initiated phase 3 clinical trials of an investigational cannabidiol epidiolex for treatment of two orphan conditions in children dravet and lennox gastaut syndromes . 22 gw also received fast track designation from the us fda for use of the drug candidate to treat newborns with epilepsy . 23 see also edit dronabinol marinol nabilone references edit gw pharmaceuticals ltd . ist world.info . http www.guardian.co.uk business 2011 apr 17 gw pharmaceuticals justin gover cannabis sativex multiple sclerosis intcmp srch the observer sunday 17 april 2011 prices and markets stocks of gw pharm . londonstockexchange.com . 28 june 2001 . elizabeth landau 21 june 2010 . world s first fully approved cannabis drug on sale in uk . thechart.blogs.cnn.com . ward andrew 9 january 2014 . gw raises nearly 90m to develop childhood epilepsy treatment . financial times . retrieved 20 january 2014 . plc gw pharmaceuticals . gw pharmaceuticals initiates second phase 3 pivotal study of epidiolex r cbd in lennox gastaut syndrome . retrieved 2015 09 20 . pete brady 25 april 2003 . gw pharm responds to cc . cannabisculture.com . cannabis in medical practice a legal historical and pharmacological overview of the therapeutic use of marijuana google ebook via google books . the inheritance of chemical phenotype in cannabis sativa l. hortapharm b.v. 1075 vs amsterdam the netherlands and instituto sperimentale per le colture industriali 40128 bologna italy pdf . genetics.org . 1 january 2003 . sam the skunkman four twenty wiki . fourtwentywiki.com . 16 august 2011 . inauthor robert connell clarke google search . david a watson 49366 018 55 white m unknown not in bop custody david watson aka skunkman . bop.gov . seeds from the marijuana cultivar skunk no. 1 were provided by hortapharm bv amsterdam the netherlands and imported under a us drug enforcement administration dea permit to a registered controlled substance research facility . pdf . details released of collaboration between gw pharmaceuticals and hortapharm medicinal cannabis . gwpharm.com . breen bill 1 february 2004 . the cannabis conundrum . fastcompany.com . breen bill 1 february 2004 . dr. dope s connection . fastcompany.com . uk medicines online nabiximols page accessed feb 3 2016 extraction of pharmaceutically active components from plant materials . patentstorm.us . is big pharma set to corner the american market on medical marijuana . americanindependent.com . 25 april 2011 . gwpharma gw and bayer announce marketing agreement on pioneering new cannabis based treatment . gwpharm.com . 30 september 2004 . medical cannabis strains geoffrey guy md gw pharmaceuticals uk conference . youtube.com . 23 february 2010 . buttic claudio december 9 2015 . therapeutic cannabis for children a possible new treatment for epilepsy . meds news . retrieved february 3 2016 . tony quested for business weekly . august 6 2015 fda backs cannabis based medicine for in danger newborns external links edit the medicinal uses of cannabis and cannabinoids v t e pharmaceutical and biotechnology industry in the united kingdom manufacturing in the united kingdom economy of the united kingdom companies current aah pharmaceuticals alliance boots astex astrazeneca medimmune btg cyclacel dechra pharmaceuticals ge healthcare genus glaxosmithkline hikma pharmaceuticals indivior macfarlan smith norbrook group oxford biomedica pfizer uk phytopharm proximagen shire silence therapeutics tbs gb unipath vectura group vernalis viiv healthcare defunct allen & hanburys amersham beecham group cambridge antibody technology celltech chiroscience distillers company fisons glaxo wellcome ici reliant pharmaceuticals renovo zeneca government and regulatory bodies commission on 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