GLP‑1 drugs may fight addiction across every major substance, according to a study of 600,000 people

Medical Xpress

March 5, 2026

A patient of mine, a veteran who had tried to quit smoking for over a decade, told me that after he started a GLP-1 drug for his diabetes, he lost interest in cigarettes. He didn't use a patch. He didn't set a quit date. He simply lost interest. It happened without effort.