Mounjaro is not FDA approved as a weight-loss medication, but losing weight is a potential side effect. Many people have lost significant weight while using Mounjaro. In clinical trials, people with Type 2 diabetes that were considered overweight or obese lost up to 15% of their starting body weight after using Mounjaro for 72 weeks (about 16.5 months). This is what led to tirzepatide, Mounjaro’s active ingredient, being approved as a weight-loss medication under the brand name Zepbound.
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