Ryan Grim reports:

The fast growing medical marijuana trade is on pace to eclipse the market for Viagra, the first sophisticated analysis of the industry found in a report out Wednesday. The study only focused on transactions, ignoring ancillary businesses that serve the industry, such as insurance companies, law firms, public affairs companies or hydropo equipment makers.

Medical marijuana sales will total $1.7 billion in 2011, just $200 million less than sales for Viagra, Ted Rose, the study's author, said in a conference call with reporters

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