Ozempic is a GLP-1 receptor agonist used for Type 2 diabetes.
Mechanism of action
- Pivotal trials
- 3
- Phase 3
- Participants
- 8,709
- across all trials
- Publication years
- 2016–2024
- peer-reviewed
Last Revised — by Dr. Jane Novak, MD, MPH
SUSTAIN-6 (phase 3, cardiovascular)
- • Semaglutide 0.5/1.0 mg weekly vs placebo in type 2 diabetes + CV risk.
- • A1C reduction ~1.0-1.5 percentage points; weight loss 3.6-4.9 kg.
- • GI side effects (nausea 16-20%) were the most common discontinuation cause.
Source: Semaglutide and Cardiovascular Outcomes in T2D — NEJM, 2016
Weight-loss trajectory · STEP-2 (semaglutide 2.4 mg for T2D weight)
Mean change in body weight over the 68-week trial.
What the evidence supports — Ozempic
Editorial grades summarizing study quality and convergence. How we grade.
| Claim | Grade | Basis |
|---|---|---|
Lowers A1C by 1.0-1.8 points in adults with type 2 diabetes Source: Lancet Diabetes & Endocrinology, 2018 SUSTAIN-1 through SUSTAIN-7 RCTs, consistent dose-response | AStrong evidence | SUSTAIN-1 through SUSTAIN-7 RCTs, consistent dose-response |
Reduces major cardiovascular events in T2D + established CV disease Source: NEJM, 2016 SUSTAIN-6 (n=3,297), 26% relative reduction in MACE composite | AStrong evidence | SUSTAIN-6 (n=3,297), 26% relative reduction in MACE composite |
Off-label weight loss effect of 4-6 kg in adults without diabetes Source: NEJM, 2021 Observational cohorts and STEP trials at higher (Wegovy) doses | BModerate evidence | Observational cohorts and STEP trials at higher (Wegovy) doses |
Slows progression of diabetic kidney disease Source: NEJM, 2024 FLOW trial showed 24% slower eGFR decline in T2D + CKD | BModerate evidence | FLOW trial showed 24% slower eGFR decline in T2D + CKD |
Causes pancreatitis at meaningfully elevated rates Small absolute signal in post-marketing reports; SUSTAIN-6 found no increase | DPreliminary | Small absolute signal in post-marketing reports; SUSTAIN-6 found no increase |
Ozempic dose-titration ladder
Starter dose has no therapeutic effect — it exists purely to dampen GI side effects. Skipping straight to 0.5 mg is the most common abandonment driver.
Weeks 1–4
0.25 mg
Non-therapeutic starter
Weeks 5–8
0.5 mg
First glycemic dose
Weeks 9–16
1.0 mg
Standard maintenance for most adults
Target doseWeeks 17–52
2.0 mg
Optional — if 1.0 mg insufficient
Source: Ozempic prescribing information
FDA approval
2017
Type 2 diabetes
Max dose
2.0 mg
Weekly injection
A1C drop
1-2%
Mean reduction
List price
$968
/month cash
Monthly cost in the US
What Ozempic costs by payment path
Real out-of-pocket varies. Cash list price is what the pharmacy bills without insurance. Commercial copay assumes a tier-3 specialty plan. Savings-card numbers come from manufacturer programs.
$935.77/mo
What you pay at the pharmacy with no insurance, no coupons.
$25–$150/mo
Typical tier-3 specialty copay if your plan covers GLP-1s for your indication. Coverage is uneven.
$25–$25/mo
Commercially insured with coverage for T2D — $25/mo, max $150/3-month fill. Not for Medicare/Medicaid.
Prices verified against manufacturer pages and FDB pharmacy data. Last reviewed: 2026. Affordability programs change; verify eligibility directly with the manufacturer before assuming you qualify.
What patients reported on Ozempic
Patient-reported outcomes from the SUSTAIN program patient-reported outcomes substudy, plus the Drugs.com community satisfaction rating. These are aggregate signals, not individual testimonials.
A1C reduction
-1.4%
Mean A1C change vs baseline in T2D trials (1.0 mg dose)
MACE reduction
-26%
Relative risk reduction vs placebo (SUSTAIN-6 CVOT)
Lost ≥5% weight
69%
Secondary outcome — STEP-2 T2D substudy at 68 weeks
Treatment satisfaction
+6.8
DTSQ change-score vs comparators (SUSTAIN-7 head-to-head)
Drugs.com community rating from 1,014 verified user reviews. View on Drugs.com →
Source: SUSTAIN program + STEP-2 substudy + Drugs.com community rating accessed 2026.
This is general drug information, not medical advice. Talk to a licensed clinician before starting, stopping, or switching medication.
FDA supply status
Partial shortageReason: Demand increase for the drug
Limited: 0.25 mg/0.5 mL pen, 0.5 mg/0.5 mL pen
Expected resolution: Q3 2026 (per Novo Nordisk guidance)
Last verified May 15, 2026. Source: FDA Drug Shortage Database.
Why is Ozempic prescribed?
Ozempic is FDA-approved to treat:
- Type 2 diabetes
Dosing schedule
FDA-label titration timeline for Ozempic. Doses ramp gradually to limit gastrointestinal side effects; never accelerate the schedule without prescriber input.
Step 1
Weeks 1–4
0.25 mg
Step 2
Weeks 5–8
0.5 mg
Step 3
Weeks 9+
1.0 mg
Step 4
Optional
2.0 mg
Maintenance
Source: FDA prescribing information. Weekly subcutaneous injection. Dose escalation may be delayed if side effects are intolerable. Doses listed here are typical; your prescriber may adjust based on tolerance and response.
Titration schedule
Weekly dose progression
Each escalation holds 4 weeks before the next step up — standard pattern across GLP-1 weight-management labels.
Clinical trial results
Body-weight outcomes from the pivotal trials that anchor FDA approval. Each chart plots the active arm against the placebo or head-to-head comparator, week by week.
SUSTAIN-7
Semaglutide 1.0 mg subcutaneous weekly (vs dulaglutide 1.5 mg)
A1C change from baseline at week 40
- Duration
- 40 wk
- Active arm
- n=301
- Placebo arm
- n=299
- Final delta
- -6.5%
Key takeaways
- Head-to-head with dulaglutide 1.5 mg in T2D: semaglutide-1 produced -6.5% body-weight change vs -3.0% with dulaglutide.
- A1C reduction was -1.8% with semaglutide-1 vs -1.4% with dulaglutide; superiority confirmed.
- Gastrointestinal events were the most common reason for discontinuation in both arms.
Side effects by frequency
Incidence rates for Ozempic from the FDA prescribing information and pivotal trials. Numbers are active arm vs. placebo — the gap tells you how much of an effect is drug-caused vs. background.
- moderateNauseaGastrointestinal
- Active arm
- 20.3%
- Placebo
- 6.1%
Excess vs placebo: +14.2 pp
- moderateVomitingGastrointestinal
- Active arm
- 9.2%
- Placebo
- 2.3%
Excess vs placebo: +6.9 pp
- moderateDiarrheaGastrointestinal
- Active arm
- 8.5%
- Placebo
- 3.0%
Excess vs placebo: +5.5 pp
- mildAbdominal painGastrointestinal
- Active arm
- 7.3%
- Placebo
- 5.4%
Excess vs placebo: +1.9 pp
- mildConstipationGastrointestinal
- Active arm
- 6.5%
- Placebo
- 2.5%
Excess vs placebo: +4.0 pp
- mildHeadacheNervous system
- Active arm
- 5.7%
- Placebo
- 4.5%
Excess vs placebo: +1.2 pp
- severeHypoglycemia (with insulin/sulfonylurea)Metabolism
- Active arm
- 4.4%
- Placebo
- 2.8%
Excess vs placebo: +1.6 pp
- severeDiabetic retinopathy complicationsNervous system
- Active arm
- 3.0%
- Placebo
- 1.8%
Excess vs placebo: +1.2 pp
- severeGallbladder disorderLiver & gallbladder
- Active arm
- 1.5%
- Placebo
- 0.8%
Excess vs placebo: +0.7 pp
- severeAcute pancreatitisGastrointestinal
- Active arm
- 0.3%
- Placebo
- 0.2%
Excess vs placebo: +0.1 pp
"Excess vs placebo" is the percentage-point difference between active treatment and placebo arms. A small excess (e.g., headache at +2.6 pp) suggests the side effect is mostly background noise, not drug-caused. A large excess (e.g., nausea at +28 pp) is a strong drug signal.
Sources
- SUSTAIN-6 (Marso et al., NEJM 2016)
Trial percentages are population averages. Your individual experience may differ. Severity labels reflect typical clinical impact, not how it will feel for any specific patient.
Use & safety
Pregnancy
C — Discontinue at least 2 months before a planned pregnancy.
Breastfeeding
Not recommended while breastfeeding.
Missed dose
If within 5 days: take as soon as remembered. If more than 5 days: skip and resume normal schedule.
Storage
Refrigerate before first use. After first use, room temperature up to 56 days. Protect from light.
What Ozempic costs in 2026
From $299/mo via telehealth69% off retail
Average retail in the US: $968/month. We compare 4 pricing paths below so you can see exactly where the savings come from.
| Pricing path | Monthly cost |
|---|---|
Retail pharmacy Cash, no insurance, no coupon | $968 |
GoodRx coupon Same pharmacy, public coupon | $935 |
Commercial insurance Typical copay (median) | $25 |
Ro (insurance-covered) Cheapest editorially-vetted path | $299 69% off retail |
RxNorm Code: 1991306
Conditions it treats
FDA-approved or commonly prescribed off-label for these conditions.
Type 2 diabetes(T2D)
Type 2 diabetes is a chronic condition in which the body either resists insulin or does not produce enough of it to maintain normal blood glucose. GLP-1 receptor agonists are recommended injectable add-on therapy when A1C target is not met on metformin, and lower A1C by 1.0-2.0 percentage points on average.
Learn about Type 2 diabetesPolycystic ovary syndrome(PCOS)
PCOS is the most common endocrine disorder in women of reproductive age, affecting roughly 8-13% globally. It is characterized by irregular menstrual cycles, excess androgens, and polycystic ovaries. GLP-1 medications are increasingly used off-label for the obesity and insulin-resistance components of PCOS.
Learn about Polycystic ovary syndromeMore on Ozempic
Reader reviews
Verified user experiences with Ozempic. Reviews are moderated before publishing.
No user reviews yet
Be the first to share what worked — side effects, titration experience, dosing, weight-loss timeline. The form below takes ~2 minutes.
Sources & further reading
All clinical claims on this page are sourced from the FDA prescribing information and peer-reviewed literature. Verify the most current label before clinical decisions.
Related medications
Other drugs in the same class — GLP-1 receptor agonist.
Starting Ozempic — what to expect, week by week
Week 1-4
0.25 mg starter — non-therapeutic
Sub-therapeutic for both glucose and weight — this dose exists only to build tolerance. Most people feel mild nausea but no glucose effect yet.
Week 5-8
Step up to 0.5 mg — first glycemic effect
A1C usually drops 0.5-0.8 points in this window. Continue hydration + smaller meals. Side-effect intensity often resets briefly.
Week 9-16
Optional step to 1.0 mg
Most adults stabilize here. Weight loss begins modestly (1-2 lb/week). A1C continues to fall toward target.
Week 17+
Maintenance — 1.0 or 2.0 mg
2.0 mg is FDA-approved for additional glycemic effect when 1.0 mg is insufficient. Lab check at 12 weeks (kidney, lipids, A1C).
Ozempic — three things to settle first
Myth
Ozempic is FDA-approved for weight loss.
Fact
Ozempic is approved for type 2 diabetes management and cardiovascular risk reduction in T2D — NOT weight loss. Wegovy is the same molecule (semaglutide) approved for weight management. Off-label Ozempic prescribing for weight loss is common but technically off-label.
FDA Ozempic prescribing informationMyth
Ozempic and Wegovy are the same dose at the same price.
Fact
Same molecule (semaglutide), different max doses: Ozempic 2.0 mg max vs Wegovy 2.4 mg. List prices and insurance coverage differ — Ozempic frequently covered by diabetes plans; Wegovy often requires obesity-specific benefit.
FDA dose summariesMyth
You can stop Ozempic once your A1C normalizes.
Fact
A1C and weight both rebound within 1-2 months of stopping in most patients. Long-term continuation is the FDA-labeled use; stopping is a clinician decision, not a graduation milestone.
“If a patient asks for Ozempic for weight loss, I'm honest that Wegovy is the on-label semaglutide for weight management and that insurance handles it very differently. Same molecule, different paperwork.”
Side-effect timeline
peaks fade
Typical 16-week titration schedule. Individual experience varies — track yours with the printable tracker.
- 1
Wk 1-2
First injection
- NauseaModerate
- FatigueModerate
- BloatingMild
Peak nausea — eat small protein-forward meals; hydrate.
- 2
Wk 3-4
Body adapting
- NauseaMild
- ConstipationModerate
- RefluxMild
Constipation climbs as GI motility slows. Add fiber + magnesium.
- 3
Wk 5-8
Dose escalation #1
- NauseaModerate
- FatigueMild
- DiarrheaMild
Symptoms re-spike for ~7 days after each escalation.
- 4
Wk 9-12
Settling in
- NauseaMild
- RefluxMild
GI complaints meaningfully fade. Weight loss accelerates.
- 5
Wk 13-16
Maintenance ramp
- Mild fatigueMild
- Hair sheddingMild
Hair shedding from rapid weight loss may appear (resolves by month 6).
- 6
Wk 17+
Maintenance
- Generally well-toleratedNone
Most side effects resolved. Watch for gallbladder symptoms long-term.
Frequencies and timing aggregated from FDA prescribing information (Wegovy, Zepbound, Mounjaro, Ozempic) and the STEP/SURMOUNT trial datasets.
12-month cost tracker
Ozempic (1.0 mg pen)
Average US retail pharmacy price, per 28-day supply. Hand-curated; updated monthly.
Cash price held flat over the past year
Prices reflect average list at major US pharmacies (CVS, Walgreens, Walmart). Your actual cost depends on insurance, pharmacy choice, and savings-card eligibility.
Ozempic price by dose strength
Cash, insured, and manufacturer-discount prices across 2026. Refreshed monthly from published provider rate cards.
| Dose | Supply | Retail (FDA list)Cash, no coupons | Cash + couponGoodRx / direct-to-patient | With insuranceTypical commercial copay | Mfr savings cardEligibility required |
|---|---|---|---|---|---|
| 0.25 mg | 4-dose pen | $998 | $850 | $25 | $25 |
| 0.5 mg | 4-dose pen | $998 | $850 | $25 | $25 |
| 1.0 mg | 4-dose pen | $998 | $850 | $25 | $25 |
| 2.0 mg | 4-dose pen | $998 | $850 | $25 | $25 |
Prices are illustrative. Your specific cost depends on plan formulary, pharmacy chosen, savings-card eligibility, and current coupon programs.
Ozempic side effects by week
Percentage of patients reporting each symptom at each week bucket. Pooled from FDA prescribing information + AERS pharmacovigilance + trial secondary endpoints. Individual experience varies.
| Symptom | Wk 1-2 | Wk 3-4 | Wk 5-8 | Wk 9-12 | Wk 13-24 | Wk 24+ |
|---|---|---|---|---|---|---|
| NauseaSUSTAIN-6 + label | 20% | 16% | 12% | 9% | 6% | 4% |
| DiarrheaSUSTAIN-6 | 9% | 12% | 10% | 8% | 6% | 4% |
| VomitingSUSTAIN-6 | 9% | 8% | 6% | 4% | 3% | 2% |
| ConstipationSUSTAIN-6 | 3% | 5% | 6% | 5% | 4% | 3% |
| Abdominal painLabel | 6% | 7% | 6% | 5% | 4% | 3% |
| FatigueAERS pooled | 5% | 6% | 5% | 4% | 3% | 2% |
| Hypoglycemia (w/ insulin)SUSTAIN-6 subgroup | — | 5% | 7% | 7% | 8% | 8% |
Color coding: red ≥20%, amber 10-19%, brand 3-9%, faint <3%. — indicates not tracked at that interval.
Ozempic content history· 2 changes
2026-05-31Minor updateby Health Portal editorial team
Added dosage price table + sub-section reference pages + update history.
2026-05-15Major updateby Jane Novak, MD, MPH
Evidence-graded claim table added (5 claims), pivotal trial card (SUSTAIN-6), dose-titration ladder.
Where to get Ozempic
Telehealth providers + manufacturer programs that prescribe or supply Ozempic. Editorial fit notes on each.
Insurance-friendly telehealth
Ro
Largest US weight-loss telehealth; PA + appeals support
Best for: Insurance-friendly with strong PA filing infrastructure
Affiliate
Insurance-friendly telehealth
Sequence (WeightWatchers Clinic)
WW Clinic — coaching + GLP-1 prescribing bundle
Best for: Coaching-integrated weight management
Direct
Insurance-friendly telehealth
Form Health
Board-certified obesity medicine clinicians
Best for: Specialist obesity-medicine care
Direct
Insurance-friendly telehealth
PlushCare
50-state coverage, in-network with most major insurers
Best for: In-network insured care
Direct
LGBTQ+-affirming telehealth
Folx Health
LGBTQ+-affirming broader primary care + weight management
Best for: LGBTQ+ primary care home for GLP-1
Direct
Manufacturer savings programs
NovoCare
Novo Nordisk savings cards + patient assistance (Wegovy, Ozempic, Saxenda)
Best for: Income-qualified uninsured Novo Nordisk drugs
Direct
Pharmacy discount platforms
GoodRx
Free pharmacy coupons; 10-30% off brand cash prices
Best for: Off-formulary backup when nothing else works
Direct
Pharmacy discount platforms
SingleCare
Pharmacy discount card; competitive with GoodRx
Best for: Alternative discount card for price comparison
Direct
Pharmacy discount platforms
Mark Cuban Cost Plus Drug Company
Cost + 15% + $3 fee + $5 shipping. Transparent pricing.
Best for: Transparent reference cash price (limited GLP-1 stock)
Direct
Patient advocacy + education
Obesity Action Coalition
National patient advocacy organization; neutral resource directory
Best for: Education + advocacy + community
Direct
Editorial selection. "Direct" links go to the company’s homepage — we are not yet an affiliate partner with them and earn no commission on those signups. "Affiliate" links route through our /go redirect with commission tracking.
Common questions readers ask
- Does Ozempic cause hair loss?
- Not directly. Hair shedding (telogen effluvium) is reported by some patients ~3 months into rapid weight loss — typical of any rapid-weight-loss state, not unique to GLP-1. Full evidence-graded answer
- Can you drink alcohol on Wegovy?
- No hard contraindication, but alcohol tolerance often drops sharply on GLP-1. Many patients also report reduced desire for alcohol — likely a secondary effect of GLP-1 on the brain reward system. Full evidence-graded answer
- Can I take GLP-1 while pregnant?
- No. All FDA-approved GLP-1s carry a pregnancy contraindication. Stop GLP-1 at least 2 months before planned conception due to its long half-life. Full evidence-graded answer
- Is it safe to take GLP-1 long-term?
- Liraglutide has 15+ years of post-marketing data (Victoza approved 2010). Semaglutide has 8+ years (Ozempic approved 2017). No new class-wide safety signals have emerged in extended follow-up. Chronic use is the FDA-approved indication for both T2D and obesity. Full evidence-graded answer
- Do I need to exercise on Wegovy?
- Yes — resistance training specifically. Without it, 25-40% of weight lost on GLP-1 comes from lean muscle. Cardio is a bonus; resistance is the non-negotiable. Full evidence-graded answer
- What happens if I miss a weekly GLP-1 dose?
- If within 5 days: take the missed dose as soon as you remember, then resume the regular schedule. More than 5 days late: skip it and inject your next scheduled dose. Never double up. Full evidence-graded answer
Next up
Mounjaro — full drug profileDual GIP/GLP-1 agonist that outperformed Ozempic head-to-head in SURPASS-2.
Read this nextWas this page helpful?