Zepbound and Intermittent Fasting: Is It Safe? Label
Zepbound and intermittent fasting: what the label says, what doctors advise, and practical tips.
- Active ingredient
- tirzepatide
- Manufacturer
- Eli Lilly
- How it is taken
- Weekly injection (pen or vial)
- FDA-approved for
- Weight loss, Sleep apnea

Zepbound in short
The half-life is 5 to 6 days, so half is gone at 5.5 d, while five half-lives (27.5 d) leaves about 3%.
In SURMOUNT-1, people lost 20.9% of body weight over 72 weeks, while the placebo group lost 3.1%.
In US dollars, monthly price points include the list price and self-pay offers. Each figure comes from the maker's price page.
Sources: FDA label (DailyMed), Eli Lilly 1 2, cnbc.com.