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GLP-1 Decoder

Orforglipron Side Effects: How Common, How Long They Last

In the Foundayo label, nausea is the most common side effect: 35% on 17.2 mg vs 10% on placebo. Next come constipation and diarrhea.

Most common
Nausea 35%
Same on placebo
10%
Stopped because of side effects
8%
Trial group
Adults with obesity or overweight (weight management)

Foundayo in brief

How long it remains in the body
100%50%25%0%039 h3.2 d4.9 d6.5 d8.1 d50%25%12.5%time after the dose

The half-life ranges from 29 to 49 hours. At 39 h, half is gone; five half-lives (8.1 d) leave about 3%.

Main trial body weight loss
ATTAIN-1: 5.5 mg daily7.4%ATTAIN-1: 9 mg daily8.3%ATTAIN-1: 17.2 mg daily11.1%Placebo2.1%

In ATTAIN-1, weight loss at 72 weeks was 11.1%, compared with 2.1% in the placebo group.

How the price changes over time
$649$0List priceSelf-pay

The maker's price page provides monthly price points in US dollars, including the list price and self-pay offers.

Sources: FDA label (DailyMed), Eli Lilly, pricinginfo.lilly.com.

Orforglipron side effects: label rates vs placebo

According to the FDA label, placebo-controlled trials showed 13 common orforglipron side effects. The last column shows how much more often each side effect appeared than on placebo.

Table 1: Adverse Reactions Reported in ≥5% of FOUNDAYO-treated Adult Patients with Obesity or Overweight (With or Without Type 2 Diabetes) in Pool of Placebo-Controlled Trials (Trials 1 and 2)
Side effectPlaceboFoundayo 5.5 mgFoundayo 9 mgFoundayo 17.2 mgMore than placebo, 17.2 mg
Nausea10%26%34%35%+25 points
Constipation9%20%27%24%+15 points
Diarrhea11%21%23%25%+14 points
Vomiting4%13%21%24%+20 points
Dyspepsia4%12%16%13%+9 points
Abdominal pain7%13%14%14%+7 points
Headache7%8%9%9%+2 points
Abdominal distension3%7%9%8%+5 points
Fatigue4%6%7%9%+5 points
Eructation1%6%8%8%+7 points
Gastroesophageal reflux disease2%6%6%7%+5 points
Flatulence2%5%6%6%+4 points
Hair loss2%4%4%5%+3 points

Source: FDA label (DailyMed).

Serious warnings, explained simply

Source: FDA label (DailyMed).

Source: FDA label (DailyMed).