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GLP-1 Decoder

Tirzepatide Hair Loss: How Common, Why, When It Regrows

Yes. Hair loss is listed in the Zepbound label at 5% on 5 mg. Placebo in the Zepbound trials: 1%.

Labels that list it
2 of 2
Highest rate
5% Zepbound

A quick look at Zepbound

How long it remains in your 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. After 5.5 d, half remains; five half-lives (27.5 d) leave about 3%.

Its main trial found this amount of weight loss
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, people lost 20.9% of body weight, compared with 3.1% on placebo.

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

Monthly prices in US dollars include the list price and self-pay offers, all taken from the maker's price page.

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

Placebo compared with tirzepatide: how often does it show up?

The label trials show Tirzepatide hair loss for each dose group. The trial used placebo as its comparison group.

Hair loss listed in the tirzepatide labels
Medicine and doseHair lossPlaceboMore than placeboPeople in the trials
Zepbound 5 mg5%1%+4 pointsAdults with obesity or overweight (weight management)
Zepbound 10 mg4%1%+3 pointsAdults with obesity or overweight (weight management)
Zepbound 15 mg5%1%+4 pointsAdults with obesity or overweight (weight management)

Source: Zepbound label (DailyMed).

Tirzepatide hair loss and other GLP-1s compared

Its own trials are covered by each label, with different groups of people in them. Consider it a rough guide.

The table also lists pill forms: Foundayo.

Hair loss across GLP-1 labels
MedicineHighest rate in the labelDose groupPlaceboPeople in the trials
Zepbound5%5 mg1%Adults with obesity or overweight (weight management)
Foundayo5%17.2 mg2%Adults with obesity or overweight (weight management)
Wegovy3%2.4 mg1%Adults with obesity or overweight (weight management)
OzempicListed, no rate given–––
MounjaroListed, no rate given–––
TrulicityListed, no rate given–––
ByettaListed, no rate given–––
RybelsusNot listed–––
SaxendaNot listed–––
VictozaNot listed–––

Sources: Wegovy label (DailyMed), Zepbound label (DailyMed), Foundayo label (DailyMed).

Source: FDA label (DailyMed).

Reports from the Zepbound label

Here is the label's exact wording about hair loss:

“Hair loss adverse reactions in ZEPBOUND-treated patients were associated with weight reduction.”

Source: FDA label (DailyMed).