Mounjaro and Intermittent Fasting: Is It Safe? Label
Mounjaro and fasting: what the label says, what doctors advise, and practical tips.
- Active ingredient
- tirzepatide
- Manufacturer
- Eli Lilly
- How it is taken
- Weekly injection
- FDA-approved for
- Type 2 diabetes, Heart risk

Mounjaro in brief
Its half-life is about 5 days: after 5 d half is gone, and after five half-lives (25 d) about 3% is left.
The 40 week SURPASS-1 trial in type 2 diabetes showed 7.8 kg of weight loss, versus 1 kg on placebo.
Monthly prices in US dollars: the list price and self-pay offers, each taken from the maker's price page.
Sources: FDA label (DailyMed), healthsystemtracker.org, pricinginfo.lilly.com.