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GLP-1 Decoder

Rybelsus vs Wegovy Pill: Same Drug

Rybelsus and Wegovy contain the same medicine, semaglutide, from Novo Nordisk, but carry different approvals: Rybelsus for type 2 diabetes and heart risk, Wegovy for weight loss, heart risk and MASH liver disease.

Rybelsus and Wegovy: a brief overview

Half-life in days
Rybelsus (about 1 week)7 dWegovy (about 1 week)7 d

Sources: FDA label (DailyMed) 1 2.

Side-by-side look at Rybelsus and Wegovy

Side-by-side look at Rybelsus and Wegovy
RybelsusWegovy
Medicine Rybelsus Wegovy
Active ingredientsemaglutidesemaglutide
ManufacturerNovo NordiskNovo Nordisk
How it is takenDaily tabletWeekly injection or daily tablet
Approved forType 2 diabetes and heart riskWeight loss, heart risk and MASH liver disease
First FDA approval20192021
Average weight loss in trialsNot listed14.9% (STEP 1, 68 weeks)
Most common side effectNausea 20% vs 6% on placeboNausea 44% vs 16% on placebo
List price$1,027.51 per 30 tablets$1,349.02 per month
Self-pay fromNot listed$149 per month
Medicare GLP-1 BridgeNot listed$50 per month, eligible Part D
FDA shortageResolved February 21, 2025Resolved February 21, 2025

Sources: FDA label, FDA label (DailyMed), Novo Nordisk pricing, TrumpRx.

How the weight loss compares

Because no trial has directly compared these drugs, the results come from separate trials that had different participants and durations

Separate Rybelsus and Wegovy trial results
TrialWho took partLengthGroupAverage weight lossPlacebo
OASIS 4Adults with obesity or overweight, without diabetes64 weeksWegovy pill 25 mg daily13.6%2.4%
STEP 1Adults with obesity or overweight, without diabetes68 weeksSemaglutide 2.4 mg weekly14.9%2.4%
STEP 2Adults who have type 2 diabetes and either have obesity or are overweight68 weeksSemaglutide 2.4 mg weekly9.6%3.4%

The trial results are drawn from OASIS 4 (FDA label (DailyMed)), STEP 2 (PubMed), and STEP TEENS (PubMed).

How the side effects compare

Start by comparing each drug with its own placebo group.

Side effects at the highest dose in the Rybelsus and Wegovy labels
Side effectRybelsusPlacebo (Rybelsus trials)WegovyPlacebo (Wegovy trials)
Nausea20%6%44%16%
Abdominal Pain11%4%20%10%
Diarrhea10%4%30%16%
Decreased appetite9%1%Not listedNot listed
Vomiting8%3%24%6%
Constipation6%2%24%11%
HeadacheNot listedNot listed14%10%
FatigueNot listedNot listed11%5%
DyspepsiaNot listedNot listed9%3%

Sources: FDA label (DailyMed) 1 2.

Prices and coverage compared

Route prices shown before savings and after savings
MedicineHow you payPrice
RybelsusList price before insurance$1,027.51 per 30 tablets
RybelsusRYBELSUS Savings Offer (insured)choose a fill of 1, 2, or 3 months, with pricing starting at $25
WegovyList price before insurance$1,349.02 per month
WegovyWegovy Savings Offer (insured)from $25 per month
WegovySelf-pay: Wegovy pill 1.5 mg$149 per month
WegovySelf-pay: Wegovy pill 4 mg$199 per month
WegovySelf-pay: Wegovy pill 9 mg and 25 mg$299 per month
WegovySelf-pay: for the first 2 fills, the Wegovy pen intro covers 0.25 mg and 0.5 mg$199 per month
WegovySelf-pay: Wegovy pen 0.25 mg to 2.4 mg$349 per month
WegovySelf-pay: Wegovy HD 7.2 mg pen$399 per month
WegovySelf-pay via TrumpRx$149 per month
WegovyMedicare GLP-1 Bridge (Wegovy, eligible Part D)$50 per month
Prices checked November 2026 (7)

Novo Nordisk pricing, rybelsus.com, TrumpRx 1 2, NovoCare 1 2, CMS.

Who should pick which?

Your prescriber looks at your health history, other medicines and coverage, then decides whether you should switch between them