Pubdate: Wed, 29 Nov 2000 Source: Register-Guard, The (OR) Copyright: 2000 The Register-Guard Contact: PO Box 10188, Eugene, OR 97440-2188 Website: http://www.registerguard.com/ Author: Craig Brett, Bloomberg News DRUG MAKER GROWS POT - FOR MEDICINE LONDON - Many new drugs are researched and developed in secrecy, but few grow in a greenhouse protected by electric fences and 24-hour guards. For GW Pharmaceuticals Ltd., different rules apply. The British drug maker is growing 30,000 marijuana plants with an eye toward a potential $700 million annual market for easing such ailments as glaucoma and nausea. The company says it's the only one in the world producing pharmaceutical-grade cannabis for clinical use. "It's a medicine. About four or five puffs will ease the spasms in my legs within minutes," says wheelchair-bound Bill Thornton-Smith, 43, who takes the drug for his multiple sclerosis. "If I wanted to get high, I would just pop down the shop and get a bottle of wine." Recognizing that doctors are unlikely to prescribe a medicine that's smoked, GW has developed a spray. A device delivers the drug under the tongue and records the frequency and size of the doses for doctors, said Justin Gover, GW's managing director. The closely held company is testing marijuana specially cultivated at its secret location on 20 MS patients. Next year, GW plans tests in more than 100 people, each of whom must be licensed by the United Kingdom's Home Office. If the studies are successful, GW intends to market the drug for MS, nausea and arthritis by 2003. Thornton-Smith and about 85,000 others in Britain have MS, a debilitating disease of the central nervous system that can cause muscle spasms and paralysis. About 4 percent, or 3,400, of them, smoke pot as medical therapy, according to a report by the House of Lords. Marijuana may also alleviate phantom limb, a condition in which amputees sense pain where an arm or leg used to be, Gover said. The British government has said if the benefits of marijuana can be scientifically proven, it would propose an amendment to The Misuse of Drugs Act to allow its use. Still, GW faces a number of obstacles. Only about one of five drug compounds that enter clinical testing makes it to the market. And the benefits of marijuana, which remains illegal in much of the world, are hotly disputed. "While we hear a lot about people who say cannabis has helped them, we hear a lot less about the people who say it hasn't," said David Harrison, a spokesman for the Multiple Sclerosis Society, which seeks more research on the drug. "It has had quite nasty effects on their sense of balance and nervous systems." - --- MAP posted-by: Terry Liittschwager