Tue 05 May 2004Calls for the radical treatmentIrish people with multiple sclerosis are caught in a dilemma - a new treatment is being widely used in the US but is not licensed here. Martin Barry reportsMS sufferers in Ireland have begun a campaign for a clinical trial to be carried out on a radical treatment pioneered by a New York medic using a low dosage of Naltrexone (LDN), a generic drug first licensed in the 1980s to treat heroin users.