Mounjaro (tirzepatide) starts to work within hours of the first injection, affecting blood sugar regulation and appetite. However, noticeable results like appetite reduction and weight loss typically take a few weeks to become visible. Most people start to see meaningful changes in appetite and blood sugar control within the first 1 to 2 weeks, with more substantial effects around 4 to 8 weeks. Peak blood sugar-lowering effects may take up to 40 weeks, and significant weight loss on higher doses can be observed around 24 weeks, with continuous improvement over time. In summary:
- Immediate work starts within hours for blood sugar.
- Appetite suppression and early effects in the first 1-2 weeks.
- Noticeable weight loss and blood sugar control between 4 and 8 weeks.
- Peak effect and significant weight loss can take 24 to 40 weeks or longer.
This timeline varies based on dose, individual response, lifestyle, and other health conditions.
