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CompareSemaglutide vs Tirzepatide
Ingredient comparison

Semaglutide vs Tirzepatide

In SURMOUNT-5, a head-to-head trial of the injections, mean weight change was −13.7% on semaglutide (Wegovy) and −20.2% on tirzepatide (Zepbound) over 72 weeks. Prices and approved uses vary by brand and dose.

Every cash quote was checked on or after Sep 26, 2026.Data feeds · Oct 3, 2026 UTC
OverviewDirect evidenceCash pricesTrial resultsChange comparison
Semaglutide vs Tirzepatide: overview
CompareSemaglutideTirzepatide
Brands

Semaglutide

Ozempic, Wegovy, Wegovy HD, Rybelsus

GLP-1

Tirzepatide

Mounjaro, Zepbound

GIP/GLP-1

Route & frequency

Semaglutide

Subcutaneous injection (Ozempic, Wegovy); oral tablet (Rybelsus, oral Ozempic, Wegovy pill)

Once weekly (injectable); once daily (oral)

What was tested together

Direct comparative evidence

SURMOUNT-5

Peer-reviewed paper

Wegovy injection vs Zepbound

Adults with obesity, or overweight with a weight-related condition, without diabetes.

751 participants · 72 weeks · Randomized, open-label

Mean weight change (% of body weight)

Treatment-regimen analysis, regardless of treatment adherence.

SURMOUNT-5: Mean weight change at 72 weeks. Treatment-regimen analysis, regardless of treatment adherence.
Treatment & doseChange
Semaglutide (Wegovy)1.7 or 2.4 mg weekly injection−13.7%
Product-specific self-pay

What the quoted price covers

Lowest tracked quotes for FDA-approved products, selected separately for each price basis. Entry prices may refer to different brands or formulations. Supply periods, eligibility, refill deadlines, and additional fees can change what you pay.

Semaglutide vs Tirzepatide: sourced cash quotes
CompareSemaglutideTirzepatide
Advertised entry price

Semaglutide

$149-$299/mo

Wegovy pill (oral semaglutide) via GoodRx

GoodRx

by dose; Novo Nordisk's self-pay price through a GoodRx coupon

Third-party reported price

30-day supply

Separate studies

Trial outcomes in context

Each result belongs to its own trial, population, dose, and analysis. Weight loss, HbA1c change, and adverse events may come from different studies even within one ingredient. These are study averages, not predictions of your result.

Semaglutide vs Tirzepatide: individual trial outcomes
CompareSemaglutideTirzepatide
Weight change

Semaglutide

−14.9% (-14.9% at 68 wks · STEP 1 · 2.4 mg weekly (Wegovy))

-14.9% at 68 wks

STEP 1

2.4 mg weekly (Wegovy)

Accounts for treatment discontinuation

Check the product label

Approved uses & full records

Semaglutide

Indications depend on the brand and formulation. Read the product-specific indications and prescribing information in the full record.

769 registered ingredient studies. Count checked Oct 3, 2026. Research activity, not a measure of evidence quality.

Open full record

Tirzepatide

Indications depend on the brand and formulation. Read the product-specific indications and prescribing information in the full record.

296 registered ingredient studies. Count checked Oct 3, 2026. Research activity, not a measure of evidence quality.

Open full record
Reading the comparison

Common questions

Which costs less: Semaglutide or Tirzepatide?

Compare the named products and price conditions below. A tracked entry quote can be a different brand or formulation from the product studied in a trial. A trial-dose quote applies only to the named product and dose; neither figure is an estimate of your whole treatment cost or an insurance quote.

Do these trial results tell me which medication is best?

Direct trials compare the treatments, doses, and participants they studied. Results from separate trials differ in population, duration, dose, and analysis, so their percentages do not establish a treatment ranking. Discuss your medical history and the specific product label with a licensed clinician.

Does FDA shortage status mean my pharmacy has stock?

No. FDA shortage records describe national supply reports and covered presentations, not inventory at an individual pharmacy. Unknown status means the data cannot establish a current assessment. Confirm local stock with your pharmacy.

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Automated feed checks do not constitute a clinical or editorial review. Sources & methodology

GLPcompare is an informational data platform, not a medical provider or pharmacy. Nothing here is medical advice, a diagnosis, or a recommendation to start, stop, or change any treatment. Data is aggregated from public sources and can be incomplete or out of date. Always confirm with a licensed clinician and the current FDA label.
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The live, fully-cited reference for the GLP-1 ecosystem. Every figure traces to its source. Informational only, not medical advice.

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Fazier

Tirzepatide

Subcutaneous injection

Once weekly

FDA shortage report

Semaglutide

National reporting does not confirm stock at your pharmacy.

Coverage & source records

Tirzepatide

National reporting does not confirm stock at your pharmacy.

Coverage & source records
Tirzepatide (Zepbound)10 or 15 mg weekly injection−20.2%

Tirzepatide produced greater mean weight reduction in this trial. Both groups used their maximum tolerated dose.

This trial did not test Wegovy tablets or Wegovy HD. It was not powered to establish a safety or tolerability advantage. Study averages do not predict an individual's result.

Read the paperPubMed abstractSponsor's analysis detailsReviewed Sep 28, 2026

SURPASS-2

Peer-reviewed paper

Ozempic injection vs Mounjaro

Adults with type 2 diabetes inadequately controlled with metformin.

1,879 participants · 40 weeks · Randomized, open-label

Mean HbA1c change (percentage points)

Treatment-regimen analysis, regardless of treatment adherence or rescue therapy.

SURPASS-2: Mean HbA1c change at 40 weeks. Treatment-regimen analysis, regardless of treatment adherence or rescue therapy.
Treatment & doseChange
Semaglutide (Ozempic)1 mg weekly injection−1.86 pp
Tirzepatide (Mounjaro)5 mg weekly injection−2.01 pp
Tirzepatide (Mounjaro)10 mg weekly injection−2.24 pp
Tirzepatide (Mounjaro)15 mg weekly injection−2.3 pp

Each tirzepatide dose lowered HbA1c more than semaglutide 1 mg in this trial.

This trial did not compare Ozempic 2 mg or tablets. HbA1c changes are percentage points, not relative percentages or weight-loss results. Study averages do not predict an individual's result.

Read the paperPubMed abstractSponsor's analysis detailsReviewed Sep 28, 2026

$149 per 30 days at this quoted rate

Checked Sep 30, 2026

Price conditions

by dose; Novo Nordisk's self-pay price through a GoodRx coupon

The same oral semaglutide and prices as the NovoCare offer: $149 (1.5 mg), $199 (4 mg), $299 (9 mg and 25 mg), per Novo Nordisk's published self-pay ladder. FDA-approved product.

30-day supply

Tirzepatide

$299-$449/28 days

Zepbound KwikPen (multi-dose pen)

LillyDirect (Eli Lilly)

self-pay cash, by dose ($299 / $399 / $449)

28-day supply

≈ $320.36 per 30 days at this quoted rate

Checked Sep 30, 2026

Price conditions

self-pay cash, by dose ($299 / $399 / $449)

Four weekly doses per pen; pen needles must be purchased separately. $299 at 2.5 mg, $399 at 5 mg, and $449 at higher doses under the Self Pay Journey offer with a refill within 45 days.

28-day supply

At the named trial dose

Semaglutide

$349/28 days

Wegovy pen (standard doses 0.25-2.4 mg)

At 2.4 mg

NovoCare (Novo Nordisk)

Published price at 2.4 mg

28-day supply

≈ $373.93 per 30 days at this quoted rate

Checked Sep 30, 2026

Price conditions

Published price at 2.4 mg

After the introductory offer, standard doses cost $349 per box of four weekly pens. Wegovy HD (7.2 mg) is $399. Eligibility and restrictions apply.

One price for every standard dose (0.25-2.4 mg).

28-day supply

Tirzepatide

$449/28 days

Zepbound KwikPen (multi-dose pen)

At 15 mg

LillyDirect (Eli Lilly)

Published price at 15 mg

28-day supply

≈ $481.07 per 30 days at this quoted rate

Checked Sep 30, 2026

Price conditions

Published price at 15 mg

Four weekly doses per pen; pen needles must be purchased separately. $299 at 2.5 mg, $399 at 5 mg, and $449 at higher doses under the Self Pay Journey offer with a refill within 45 days.

Self Pay Journey price for 7.5-15 mg with a refill within 45 days; otherwise $499 (7.5 mg) or $699 (10-15 mg). Pen needles cost extra.

28-day supply

Explore product prices

Semaglutide

All Semaglutide offers

Tirzepatide

All Tirzepatide offers

USD self-pay, not insurance or pharmacy acquisition cost. A trial dose is not a personal dosing recommendation. Compounded offers are shown separately in the offer browser and are not FDA-approved.

Study context

The headline is the standard 2.4 mg maintenance dose (Wegovy), the dose used in STEP 1 and one of the permitted doses in SURMOUNT-5. Other doses and formulations have their own trials, including STEP UP and OASIS 4. Their results are not interchangeable.

Tirzepatide

−20.9% (-20.9% at 72 wks · SURMOUNT-1 · 15 mg weekly (Zepbound))

-20.9% at 72 wks

SURMOUNT-1

15 mg weekly (Zepbound)

Accounts for treatment discontinuation

Study context

SURMOUNT-1 studied adults with obesity or overweight without diabetes. This result belongs to the 15 mg arm and the treatment-regimen analysis; other doses and analyses have different results.

HbA1c change (percentage points)

Semaglutide

−1.6 pp (-1.6% at 68 wks · STEP 2 · HbA1c change in percentage points)

-1.6 percentage points at 68 wks

STEP 2
Study context

The headline is the standard 2.4 mg maintenance dose (Wegovy), the dose used in STEP 1 and one of the permitted doses in SURMOUNT-5. Other doses and formulations have their own trials, including STEP UP and OASIS 4. Their results are not interchangeable.

Tirzepatide

−2.3 pp (-2.3% at 40 wks · SURPASS-2 · HbA1c change in percentage points)

-2.3 percentage points at 40 wks

SURPASS-2
Study context

SURMOUNT-1 studied adults with obesity or overweight without diabetes. This result belongs to the 15 mg arm and the treatment-regimen analysis; other doses and analyses have different results.

Adverse events

Semaglutide

Stopped treatment for adverse events

7% (7.0% vs 3.1% placebo · STEP 1 (2.4 mg, 68 wks, obesity))

Reported nausea

44.2% (Nausea in the drug arm · STEP 1 (2.4 mg, 68 wks, obesity))

STEP 1 (2.4 mg, 68 wks, obesity)

Tirzepatide

Stopped treatment for adverse events

6.2% (6.2% vs 2.6% placebo (15 mg) · SURMOUNT-1 (15 mg, 72 wks, obesity))

Reported nausea

31% (Nausea in the drug arm · SURMOUNT-1 (15 mg, 72 wks, obesity))

SURMOUNT-1 (15 mg, 72 wks, obesity)