Gemini returned these two studies about long-term effects of tirzepatide (Mounjaro/Zepbound):
One trial followed folks for about 3.4 years. The highest dose group (15mg) kept off almost 23% of their weight. And in people with pre-diabetes, it cut the risk of getting type 2 diabetes way down, like 94% compared to placebo. Almost everyone on the drug stayed diabetes-free.
Another tracked over 13,000 patients with type 2 diabetes and heart issues for around 4 years. Tirzepatide worked as well as other treatments for preventing heart problems. It also lowered the chance of dying from any cause (8.6% vs 10.2%). Plus, it seemed to help kidney function.
Side effects were mostly stomach stuff, like feeling sick or having diarrhea. Serious risks, like pancreatitis, were rare, under 1% of users. Still not safe for people with certain thyroid cancer histories.