Sep 29, 2015 http://www.foxnews.com/health/2015/09/28/canada-tries-to-cut-cost-us-drug-gets-sued/ Soliris is one of the world's most expensive drugs, running about $500,000 a year in the US. In Canada, a year's supply of the drug, used to treat two rare blood diseases—paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic-uremic syndrome (AHUS)—is even pricier at about $525,000 a year, reports theCBC. Canada's Patented Medicine Prices Review Board argues Soliris is in fact more expensive in Canada than anywhere else in the world, which is why it began hearings in June to pressure Connecticut-based manufacturer Alexion Pharmaceuticals to lower the drug's "excessive" price. Did Alexion budge? No. Instead, it's taking the government to court in the hope that it can force the hearings to stop and block any order that might affect the price of Soliris, which has earned Alexion $6 billion in revenue over eight years. A health law expert calls Alexion's decision to challenge Canada's authority to regulate drug prices "the single greatest threat to pricing of drugs in Canada ever." The US and Chile are the only nations in the Organization for Economic Cooperation and Development that don't control drug prices, reports the Globe and Mail. Alexion says Soliris' price has been unchanged during its six years on the Canadian market and "allegations of excessive pricing" are instead based "on exchange rate fluctuations in the value of Canadian currency," per Vice.