Adolphus Busch IV, the great-grandson of the Anheuser-Busch founder, sent out a letter Friday asking people to make monetary donations in an effort to legalize a comprehensive medical cannabis program in 2018.

Busch aimed to shed light on medical cannabis legalization, that was part of the New Approach Missouri Campaign, and gather signatures before next year’s election.

The push to legalize the drug was rejected several times the past few years; and last year, a Missouri judge disqualified thousands of voter signatures, preventing the initiative from being included on the ballot in the presidential election.

In his letter, Busch makes reference to the state’s opioid epidemic, that may have a chance to decrease with the legalization of medical cannabis. The group states a study showed opioid deaths dropped to 25 percent in states where medical cannabis was allowed as an alternative treatment.

Busch said in a report from Fox News he did not have any commercial or economic interest that made him want to stand in favor of the legalization.

However, the National Council on Alcoholism and Drug Abuse (NCADA) is concerned about Busch’s support of the initiative, being someone who has been greatly involved in the alcohol industry.

“One of the largest concerns is who it’s coming from. This is someone who benefitted from the profits of the alcohol industry,” Stacie Zellin, of NCADA, said. She added the proposal does not include anything medical on his behalf.

The NCADA wants to carry out the necessary clinical trials and FDA approval measures before the product goes out in the market.