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GLP-1 Decoder

Wegovy for Weight Loss: Results by Week, Eligibility, Cost

Yes. Wegovy is FDA approved for weight loss: this medicine helps with weight loss and keeping the weight off over the long term, together with diet and activity. It is for adults and children 12 and older who have obesity, and for adults who have overweight and a weight-related condition. In STEP 1, people on Wegovy lost 14.9% of body weight on average, vs 2.4% on placebo.

For weight loss
FDA approved
Active ingredient
semaglutide
How it is taken
weekly injection or daily tablet
Best result (STEP 1)
14.9% weight loss

Wegovy overview

How long it remains in your body
100%50%25%0%07 d14 d21 d28 d35 d50%25%12.5%time after the dose

Its half-life is about 1 week. At 7 d, half has left the body. After five half-lives, about 3% remains at 35 d.

Weight loss in the main trial
Wegovy (STEP 1)14.9%Placebo2.4%

After 68 weeks, STEP 1 reported a body weight change of 14.9%, compared with 2.4% on placebo.

Costs over time
202520262027$1,349.02$0List priceSelf-pay

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

Sources: FDA label (DailyMed), healthsystemtracker.org, prnewswire.com 1 2.

Who qualifies?

Wegovy: who qualifies
Who sets the ruleWho qualifies
FDA labelFor adults with heart disease plus obesity or overweight, injections and tablets reduce the risk of heart attack, stroke, or heart-related death.
FDA labelThis medicine helps with weight loss and keeping the weight off over the long term, together with diet and activity. It is for adults and children 12 and older who have obesity, and for adults who have overweight and a weight-related condition.
FDA labelFor adults with MASH liver disease that has moderate to advanced scarring (no cirrhosis), an injection provides treatment.
FDA labelTablets are approved for adult use for weight loss and heart risk.
Medicare GLP-1 BridgeBMI 35 or higher, no condition needed
Medicare GLP-1 BridgeYou need a BMI of 30 or higher, plus CKD 3a+, uncontrolled blood pressure, or heart failure
Medicare GLP-1 BridgeYou must have Prediabetes, PAD, or a prior heart attack or stroke, along with BMI 27 or higher
Typical commercial plan (Aetna policy)BMI 30 or higher
Typical commercial plan (Aetna policy)BMI 27 or higher with a weight-related condition
Typical commercial plan (Aetna policy)the first step is a diet and activity program lasting 6 months

The sources for this information are FDA label (DailyMed), medicare.gov 1 2, and aetna.com.

Results from weight loss trials

Wegovy trials in weight loss
TrialMedicineWho took partLengthPeopleMain resultComparison
STEP 1 WegovyAdults with obesity or overweight, without diabetes68 weeks1,96114.9% weight loss2.4% on placebo
OASIS 4 WegovyAdults with obesity or overweight, without diabetes64 weeks30713.6% weight loss2.4% on placebo

The source for this trial is STEP 1 (FDA label (DailyMed)).

Which changes apply to weight loss?

Wegovy label information about weight loss
What changesWhat the label says
Acute PancreatitisCan cause inflammation of the pancreas. If severe stomach pain does not go away and sometimes spreads to your back, stop taking it and get care.
Acute Gallbladder DiseaseGallstones and gallbladder inflammation can happen. Report any pain in your upper right belly, a fever, or yellow skin or eyes.

This information comes from the FDA label (DailyMed).

These warnings appear in the FDA label (DailyMed).

Coverage for weight loss

Medicare Part D does not cover a GLP-1 used only for weight loss.

The Medicare GLP-1 Bridge lists Wegovy at $50 monthly for eligible people who meet the rules.

When Medicaid covers weight-loss GLP-1s, prior authorization is the standard.

Sources: humana.com, CMS, KFF.

When it is used for weight loss

GLP-1 medicines and weight loss
MedicineFor weight lossHow it is takenTrial result
WegovyFDA approvedweekly injection or daily tablet14.9% weight loss
ZepboundFDA approvedweekly injection20.9% weight loss
FoundayoFDA approveddaily tablet11.1% weight loss
SaxendaFDA approveddaily injection7.4% weight loss
OzempicNot an approved useweekly injectionNot listed
RybelsusNot an approved usedaily tabletNot listed
MounjaroNot an approved useweekly injectionNot listed
TrulicityNot an approved useweekly injectionNot listed
VictozaNot an approved usedaily injectionNot listed
ByettaNot an approved usetwice-daily injectionNot listed

Sources: FDA label (DailyMed).

Questions to ask your prescriber

Read the full Wegovy prescribing information on DailyMed.