Michigan HB5537 Explained: What Happens After the House Kratom Ban — And Who Decides Next

Why it matters

Michigan HB5537 would make kratom possession and distribution a misdemeanor carrying up to a year in jail and $20,000 in fines — and now awaits a Senate that has not yet committed to advancing or blocking it.

The big picture

Michigan House passed HB5537 56-48 on March 18, 2026, banning all kratom including natural leaf products and synthetic 7-OH variants. Unlike some states that have focused regulation solely on synthetic 7-OH, the Michigan bill takes an all-or-nothing approach. Whether the Democratic-controlled Senate will take up the bill, amend it, or shelve it is uncertain, and Gov. Gretchen Whitmer has not indicated her position.

Key findings

• The Michigan House passed HB5537 56-48, banning cultivation, synthesis, sale, and distribution of kratom and all synthetic variants
• Violations would be a misdemeanor carrying up to one year in jail and up to $20,000 in fines
• The bill now moves to the Michigan Senate, where its fate is uncertain
• Michigan Medicine reported in February 2026 that 7-OH addiction now makes up a third of some addiction treatment caseloads
• The DEA classifies kratom as a "Drug and Chemical of Concern" but does not regulate it federally
• At least six U.S. states currently have full kratom prohibition laws in place

What they say

"What we are experiencing with kratom is a crisis," said Rep. Cam Cavitt, R-Cheboygan, who introduced the bill. "These products are being marketed towards our kids, and many parents are not even aware that it is happening."

Bottom line

Michigan HB5537 has cleared the House, but kratom remains legal in the state until the Senate acts — and no timeline or commitment exists yet for a Senate vote.