Wegovy vs Ozempic

Editorial comparison of Wegovy (semaglutide) and Ozempic (semaglutide). Same drug class context, trial-anchored data, no marketing claims.

Reviewed by the WeighedHealth Editorial Team against primary clinical sources — FDA labeling, peer-reviewed trials, and specialty-society guidelines.

Content current as of July 2026; updated when guidance or availability changes.

Side-by-side

Dimension	Wegovy	Ozempic
Generic name	semaglutide	semaglutide
Manufacturer	Novo Nordisk	Novo Nordisk
FDA approved	2021	2017
Mechanism	Semaglutide mimics GLP-1, a gut hormone released after meals.	Same mechanism as Wegovy — GLP-1 receptor agonist.
Dosing	Titrated over 4-5 months: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg, increasing every 4 weeks.	0.25mg weekly for 4 weeks, then 0.5mg, then 1mg, max 2mg. Lower max dose than Wegovy (2.4mg).
Cost	List price ~$1,350/month without insurance.	List price ~$900-1,000/month.
Pivotal trial result	14.9% mean body-weight reduction at 68 weeks	1.4–1.8% HbA1c reduction across SUSTAIN trials (1.0 mg dose)

Efficacy in the trials

Wegovy

14.9% mean body-weight reduction at 68 weeks

STEP 1 (NCT03548935) · vs 2.4% with placebo + lifestyle · n=1,961

Ozempic

1.4–1.8% HbA1c reduction across SUSTAIN trials (1.0 mg dose)

SUSTAIN-6 (NCT01720446) — cardiovascular outcomes · vs placebo, 26% reduction in major adverse cardiovascular events · n=3,297

Trial averages describe study populations, not individuals. Response varies with the dose tolerated, adherence, and personal physiology; the two drugs were not necessarily tested head-to-head in the same trial.

The details

Dosing & cadence

Wegovy: Titrated over 4-5 months: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg, increasing every 4 weeks. Maintenance dose 2.4mg weekly. Slower titration is common to manage GI side effects.

Ozempic: 0.25mg weekly for 4 weeks, then 0.5mg, then 1mg, max 2mg. Lower max dose than Wegovy (2.4mg).

Cost & access

Ozempic: List price ~$900-1,000/month. Diabetes coverage is generally better than weight-loss coverage — many insurance plans cover Ozempic with a T2D diagnosis at standard copay.

Side effects

Wegovy: Most common: nausea (especially first 4-8 weeks), constipation, diarrhea, fatigue, headache. Less common: gallbladder issues, pancreatitis (rare), kidney strain if dehydrated. Black-box warning: medullary thyroid cancer risk (theoretical, based on rodent studies). Discontinue and consult clinician for severe abdominal pain or persistent vomiting.

Ozempic: Same as Wegovy. Same MTC/MEN2 contraindication.

Which should you choose?

If maximizing average trial weight loss is the priority, Wegovy posted the higher pivotal-trial figure; Ozempic still produced clinically meaningful loss and some people tolerate it better. On cost and access, compare each drug's manufacturer direct-pay and insurance path — that often matters more month-to-month than the efficacy gap. Both carry class safety considerations (see each drug's boxed-warning and contraindications); a personal or family history of medullary thyroid carcinoma or MEN2 rules out the GLP-1 class. Bring this comparison to a prescriber, who will match the drug to your history and titrate the dose.

This is editorial framing, not a prescription. The right choice depends on your medical history, insurance, and a clinician's evaluation.

Full Wegovy review →

Once-weekly injectable semaglutide for chronic weight management. ~15% body weight loss in trials.

Full Ozempic review →

FDA-approved semaglutide for type 2 diabetes. Widely used off-label for weight loss.

Deciding at the molecule level? Semaglutide vs Tirzepatide compares the two drug families behind every major GLP-1 brand.

Frequently asked

Is Wegovy or Ozempic more effective?+

In their pivotal trials, Wegovy reported 14.9% mean body-weight reduction at 68 weeks, while Ozempic reported 1.4–1.8% HbA1c reduction across SUSTAIN trials (1.0 mg dose). Head-to-head results vary by patient profile, dose tolerated, and adherence — these trial numbers describe averages, not what every individual experiences.

How do Wegovy and Ozempic compare on cost?+

Wegovy: List price ~$1,350/month without insurance. With Novo Nordisk's patient assistance program, eligible self-pay patients can access at $200-500/month. Insurance coverage is patchy and often requires prior authorization plus a documented weight-related comorbidity. Ozempic: List price ~$900-1,000/month. Diabetes coverage is generally better than weight-loss coverage — many insurance plans cover Ozempic with a T2D diagnosis at standard copay. Real out-of-pocket depends on insurance formulary tier, manufacturer savings programs, and whether a direct-pay channel is available.

Can I switch from Wegovy to Ozempic?+

Switching between brand-name treatments in the same drug class is common, but the conversion is not always 1:1. Discuss the switch with your prescriber — they'll usually re-titrate dosing rather than substitute equivalent strengths directly.

Are Wegovy and Ozempic the same drug?+

No. Wegovy (semaglutide) and Ozempic (semaglutide) are distinct medications from Novo Nordisk and Novo Nordisk respectively. They may share a drug class or mechanism but differ in active ingredient, dosing, and approved use.