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GLP-1 Decoder

Tirzepatide Butt: How Common, How Long It Lasts, What Helps

The tirzepatide labels do not list butt changes as a side effect. What people mean by it: a flatter or saggier buttock area after fast weight loss.

In the label
Not listed
Most common in the label
Nausea 18%

Zepbound overview

How long it remains in the body
100%50%25%0%05.5 d11 d16.5 d22 d27.5 d50%25%12.5%time after the dose

Its half-life is 5 to 6 days. By 5.5 d, half has cleared. About 3% remains at five half-lives (27.5 d).

Main trial body weight reduction
SURMOUNT-1: 5 mg weekly15%SURMOUNT-1: 10 mg weekly19.5%SURMOUNT-1: 15 mg weekly20.9%Placebo3.1%

In SURMOUNT-1 over 72 weeks, body weight loss was 20.9%, compared with 3.1% on placebo.

Prices over time
202420252026$1,086.37$0List priceSelf-pay

Monthly prices in US dollars include the list price and self-pay offers. Each comes from the manufacturer's price page.

Sources: FDA label (DailyMed), Eli Lilly 1 2, cnbc.com.

The Mounjaro label includes these instead

The Mounjaro label does not list butt changes. Five side effects follow that it does list, and they are the most common.

Adverse Reactions observed in Pool of Placebo-Controlled Trials Reported in ≥5% of MOUNJARO-treated Adult Patients with Type 2 Diabetes Mellitus (Table 1)
Side effectPlaceboMounjaro 5 mgMounjaro 10 mgMounjaro 15 mgMore than placebo, 15 mg
Nausea4%12%15%18%+14 points
Diarrhea9%12%13%17%+8 points
Decreased Appetite1%5%10%11%+10 points
Vomiting2%5%5%9%+7 points
Dyspepsia3%8%8%5%+2 points

Source: Mounjaro label (DailyMed).

Source: FDA label (DailyMed).