 
 <prompt> Wetin kain company fit gain market exclusivity through the Orphan Drug Act? Based on di question wey dey above, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Dey get special rules for some rare diseases ("orphan diseases") for some major drug regulatory territories. For example, diseases wey get less than 200,000 patients for United States, or larger populations for some cases dey subject to the Orphan Drug Act. Because medical research and development of drugs to treat such diseases dey no too make money, companies wey dey do am dey rewarded with tax reductions, fee waivers, and market exclusivity on top that drug for small time (seven years), regardless of whether the drug get patents. 