By Christopher Ingraham | The Washington Post
Insys Therapeutics, a pharmaceutical company that was one of the chief financial backers of the opposition to marijuana legalization in Arizona last year, received preliminary approval from the Drug Enforcement Administration this week for Syndros, a synthetic marijuana drug.
Related: Arizona-based drug manufacturer involved in prescription drug scandal
lInsys gave $500,000 last summer to Arizonans for Responsible Drug Policy, the group opposing marijuana legalization in Arizona. The donation amounted to roughly 10 percent of all money raised by the group in an ultimately successful campaign against legalization. Insys was the only pharmaceutical company known to be giving money to oppose legalization last year, according to a Washington Post analysis of campaign finance records.