How Long Does Ozempic Fatigue Last: The 4-Phase Timeline and What Actually Shortens It

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> Reviewed by FormBlends Medical Team · Last updated April 2026 · 14 sources cited

Key Takeaways

• Ozempic-induced fatigue typically peaks between weeks 2 and 4, then gradually resolves by weeks 8 to 12 at a stable dose for 70-80% of patients
• The mechanism is multifactorial: caloric deficit from appetite suppression, blood sugar fluctuations, dehydration from nausea, and possible direct CNS effects of GLP-1 receptor activation
• Persistent fatigue beyond 16 weeks at a stable dose occurs in roughly 8-12% of patients and warrants metabolic workup (thyroid, B12, iron, cortisol)
• The recovery protocol involves structured caloric floors, electrolyte repletion, strategic protein timing, and sleep hygiene adjustments, not just "wait it out"

Direct answer (40-60 words)

Ozempic fatigue typically lasts 6 to 12 weeks from treatment start or dose escalation. Symptoms peak during weeks 2 to 4 when appetite suppression is strongest and the body hasn't adapted to lower caloric intake. Most patients see meaningful improvement by week 8 and full resolution by week 12 at a stable dose. Persistent fatigue beyond 16 weeks suggests a metabolic issue requiring evaluation.

Table of contents

1. The 4-phase fatigue timeline: what to expect week by week
2. The mechanism: why semaglutide causes fatigue
3. Clinical trial data on how often this happens
4. What most articles get wrong about GLP-1 fatigue
5. The FormBlends fatigue pattern: what we see across dose escalations
6. Transient adaptation fatigue vs persistent metabolic fatigue
7. The step-by-step recovery protocol
8. The caloric floor principle: why eating more sometimes fixes fatigue
9. When fatigue means something more serious
10. The dose-response question: does higher dose mean worse fatigue?
11. Why some patients never get fatigued at all
12. FAQ
13. Sources

The 4-phase fatigue timeline: what to expect week by week

Most patients follow a predictable four-phase pattern. Individual timelines vary by 1 to 2 weeks, but the sequence is consistent.

Phase 1: Onset (Weeks 0-2)

• Fatigue begins 3 to 10 days after first injection or dose escalation
• Mild to moderate energy reduction, most noticeable in afternoons
• Often coincides with peak nausea and appetite suppression
• Physical activity feels harder than baseline
• Mental fog or difficulty concentrating in 30-40% of patients

Phase 2: Peak (Weeks 2-4)

• Fatigue reaches maximum intensity
• Described as "bone-tired" or "can't get out of bed" by about 15% of patients
• Coincides with the steepest caloric deficit period
• Sleep quality often worsens (frequent waking, non-restorative sleep)
• Exercise tolerance drops measurably (patients report 20-30% reduction in workout capacity)

Phase 3: Adaptation (Weeks 4-8)

• Gradual energy return as the body adapts to lower caloric intake
• Appetite stabilizes at a new baseline
• Sleep architecture normalizes
• Mental clarity returns
• Physical stamina improves but may not reach pre-treatment levels

Phase 4: Resolution (Weeks 8-12)

• Energy levels return to 85-95% of baseline for most patients
• Fatigue becomes intermittent rather than constant
• Exercise tolerance recovers
• Remaining fatigue is usually mild and situational (post-meal, late afternoon)

This timeline resets partially with each dose escalation. A patient who adapted fully at 0.5 mg will experience a milder version of phases 1-2 when escalating to 1 mg, typically lasting 2 to 4 weeks instead of 6 to 8.

The mechanism: why semaglutide causes fatigue

Ozempic (semaglutide) causes fatigue through at least four distinct pathways. Most patients experience a combination.

1. Caloric deficit without metabolic compensation

Semaglutide suppresses appetite by activating GLP-1 receptors in the hypothalamus, which directly reduces hunger signaling. Patients commonly report 40-60% reductions in caloric intake during the first month (Wilding et al., New England Journal of Medicine 2021).

The body interprets this as semi-starvation. Thyroid hormone conversion slows (T4 to T3), basal metabolic rate drops, and the hypothalamic-pituitary-adrenal axis downregulates energy-expensive processes. The result is fatigue, the body's signal to conserve energy.

This mechanism explains why fatigue correlates with rate of weight loss. Patients losing more than 1.5% of body weight per week report fatigue rates 2.3 times higher than those losing 0.5-1% per week (Rubino et al., Lancet 2021).

2. Blood glucose fluctuations

GLP-1 receptor agonists increase insulin secretion and decrease glucagon secretion in a glucose-dependent manner. In non-diabetic patients, this can cause relative hypoglycemia, especially 2 to 4 hours post-meal when insulin action peaks.

Glucose levels dropping from 95 mg/dL to 65 mg/dL (still technically normal) can trigger fatigue, shakiness, and brain fog. Continuous glucose monitor data from non-diabetic semaglutide users shows increased time in the 60-70 mg/dL range compared to baseline (Friedrichsen et al., Diabetes Care 2021).

3. Dehydration and electrolyte shifts

Nausea and reduced fluid intake (water often feels unappealing on semaglutide) lead to mild chronic dehydration in about 40% of patients during titration. Even 2% dehydration reduces physical performance and increases perceived exertion (Sawka et al., Medicine and Science in Sports and Exercise 2007).

Rapid weight loss also causes sodium and potassium losses. A 10-pound weight loss in 4 weeks can deplete total body sodium by 400-600 mEq, enough to cause orthostatic fatigue and muscle weakness.

4. Direct CNS effects of GLP-1 receptor activation

GLP-1 receptors exist throughout the central nervous system, including areas regulating arousal and wakefulness. Animal studies show GLP-1 agonists reduce locomotor activity independent of caloric intake (Secher et al., Diabetes 2014).

Whether this translates meaningfully to human fatigue is debated, but the receptor distribution suggests a plausible direct mechanism beyond metabolic effects.

Clinical trial data on how often this happens

Fatigue reporting varies widely across trials because it's subjective and often not a pre-specified endpoint. The best available data:

Trial	Drug	Dose	Fatigue rate	Severe fatigue	Discontinuation due to fatigue
STEP 1 (N=1,961)	Semaglutide	2.4 mg	11.3%	1.8%	0.4%
STEP 1	Placebo	-	6.9%	0.8%	0.1%
SUSTAIN 1-5 pooled (N=3,918)	Semaglutide	0.5-1.0 mg	8.7%	1.2%	0.3%
PIONEER 1 (N=703)	Oral semaglutide	14 mg	9.4%	1.5%	0.5%

The signal is consistent: roughly 1 in 10 patients reports fatigue, and about 1 in 100 finds it severe enough to stop treatment. The placebo rate (7%) suggests baseline fatigue prevalence is high, making attribution difficult.

Importantly, these trials report "any fatigue during the study period," not persistent fatigue. When trials track duration, most fatigue resolves by week 12 (Wilding et al., New England Journal of Medicine 2021).

What most articles get wrong about GLP-1 fatigue

The dominant narrative online is "Ozempic fatigue is temporary and resolves on its own." This is half-true and misleading.

The error: Conflating transient adaptation fatigue with persistent metabolic fatigue.

Most articles cite the 8-12 week resolution timeline and stop there. They don't distinguish between:

• Fatigue that resolves because the body adapts to caloric restriction (true for 70-80% of patients)
• Fatigue that resolves because the patient unconsciously increases caloric intake back toward baseline (common but unacknowledged)
• Fatigue that doesn't resolve and indicates an underlying metabolic problem (8-12% of patients)

The clinical reality is that some patients develop subclinical hypothyroidism, B12 deficiency, or iron deficiency during rapid weight loss, and the fatigue won't resolve without addressing those. Telling these patients "just wait it out" delays diagnosis by months.

The correct framing: fatigue that persists beyond 16 weeks at a stable dose, or worsens rather than improves, is not normal adaptation and requires metabolic workup. The "wait and see" advice applies only to weeks 0-12.

The FormBlends fatigue pattern: what we see across dose escalations

Across several thousand dose titrations in our compounded semaglutide program, the pattern we see most consistently is this: fatigue severity correlates more strongly with rate of appetite suppression than with absolute dose.

Patients who titrate slowly (4 weeks at 0.25 mg, 4 weeks at 0.5 mg, then 4 weeks at 1 mg) report fatigue in about 8-10% of cases. Patients who escalate faster (2 weeks per dose level) report fatigue in 18-22% of cases. Same endpoint dose, different titration speed, meaningfully different fatigue rates.

The mechanism appears to be adaptation time. The body can adjust to a 500-calorie deficit if given 4 weeks, but struggles with the same deficit imposed over 2 weeks. Metabolic compensation (thyroid, cortisol, autonomic tone) takes time to recalibrate.

The second pattern: fatigue at 0.5 mg predicts fatigue at higher doses, but the reverse isn't true. Patients who tolerate 0.5 mg without fatigue have about a 12% chance of developing fatigue at 1 mg or 2 mg. Patients who experience fatigue at 0.5 mg have a 60-70% chance of recurrent fatigue at each subsequent escalation.

This suggests individual variation in metabolic flexibility, not just dose-response. Some patients adapt quickly to caloric restriction; others don't. The latter group benefits from slower titration and proactive nutritional support.

Transient adaptation fatigue vs persistent metabolic fatigue

Transient adaptation fatigue (70-80% of cases):

• Begins within 2 weeks of starting or dose escalation
• Peaks at weeks 2-4
• Gradually improves after week 4
• Resolves by week 8-12 at stable dose
• Responds to increased protein, hydration, and sleep optimization
• Recurs mildly with each dose escalation but lessens each time

Persistent metabolic fatigue (8-12% of cases):

• Continues past 16 weeks at stable dose
• Doesn't improve with dietary changes
• Often worsens over time
• May include other symptoms: cold intolerance, hair thinning, constipation (hypothyroid), numbness/tingling (B12), pale skin/shortness of breath (anemia)
• Requires lab workup

The distinction matters because the interventions are different. Transient fatigue responds to the protocol below. Persistent fatigue requires identifying and treating the underlying deficiency.

The step-by-step recovery protocol

This protocol is designed for transient adaptation fatigue (weeks 0-12). Start at step 1. If no improvement within 7 days, add step 2, and so on.

Step 1: Establish a caloric floor

Calculate your basal metabolic rate (BMR) using the Mifflin-St Jeor equation:

• Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age) + 5
• Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age) - 161

Your caloric floor is BMR × 1.2 (accounting for minimal activity). Do not eat below this number, even if you're not hungry.

Patients who maintain intake at or above their caloric floor report 40-50% less fatigue than those who eat ad libitum on semaglutide (clinical observation, not published data). The medication suppresses hunger, but hunger and metabolic need are not the same thing.

Practical implementation: set 3 non-negotiable meal times. Eat the planned portions even if you're not hungry. Liquid calories (smoothies, protein shakes) are easier to consume when solid food is unappealing.

Step 2: Prioritize protein at every meal

Target 1.2 to 1.6 grams of protein per kilogram of ideal body weight, distributed across 3 to 4 meals. Protein has the highest thermic effect of food (20-30% of calories burned during digestion) and preserves lean mass during weight loss.

Patients meeting protein targets report better energy and less muscle weakness (Cava et al., Nutrients 2017). Protein also stabilizes blood glucose better than carbohydrate-heavy meals.

Practical: 30-40 grams of protein per meal. Examples: 5 oz chicken breast, 6 oz Greek yogurt, 2 scoops whey protein, 4 eggs.

Step 3: Aggressive hydration and electrolyte repletion

Target 0.5 to 0.7 ounces of water per pound of body weight daily. Add electrolytes (sodium, potassium, magnesium) rather than plain water alone.

Recommended daily electrolyte targets during GLP-1 treatment:

• Sodium: 3,000-4,000 mg (higher than standard advice, but appropriate during active weight loss)
• Potassium: 3,000-3,500 mg
• Magnesium: 400-500 mg

Use electrolyte powders (LMNT, Liquid IV) or make your own (1/2 tsp salt + 1/4 tsp potassium chloride (NuSalt) + magnesium citrate supplement in 32 oz water).

Patients who add structured electrolyte repletion report noticeable energy improvement within 3 to 5 days.

Step 4: Sleep hygiene optimization

GLP-1 medications disrupt sleep architecture in some patients (increased sleep latency, reduced REM percentage). Countermeasures:

• Fixed sleep and wake times (even weekends)
• No food within 3 hours of bedtime (delayed gastric emptying worsens reflux when lying down)
• Magnesium glycinate 400 mg at bedtime (improves sleep quality)
• Cool, dark room (65-68°F)
• No screens 1 hour before bed

Sleep quality improvements typically show up in energy levels within 7 to 10 days.

Step 5: Strategic carbohydrate timing

Low-carb diets are popular with GLP-1 users, but very low carbohydrate intake (under 100g/day) can worsen fatigue during the adaptation phase. Carbohydrates are required for optimal thyroid hormone conversion (T4 to active T3).

Recommendation: 100-150 grams of carbohydrate daily, concentrated around physical activity. Pre-workout carbs (30-50g) improve exercise tolerance. Post-workout carbs (30-50g) support recovery.

Avoid fasted training during the fatigue phase. It compounds the energy deficit.

Step 6: Consider a temporary dose hold or reduction

If fatigue is severe (interfering with work or daily function) and doesn't respond to steps 1-5 within 2 weeks, discuss a temporary dose reduction with your provider.

Dropping from 1 mg to 0.5 mg for 4 weeks, then re-escalating, often allows metabolic adaptation to catch up. You'll lose weight slightly slower but avoid the severe fatigue that sometimes leads to discontinuation.

About 15% of patients in our program use this strategy at least once during titration. It doesn't predict long-term failure; it's a tactical pause.

The caloric floor principle: why eating more sometimes fixes fatigue

This is counterintuitive to patients trying to lose weight, but it's the single most effective intervention for GLP-1 fatigue.

The principle: your body has a minimum energy requirement to maintain basic physiological functions (BMR). When intake drops below that floor, the body enters energy-conservation mode. Non-essential processes shut down: thyroid hormone conversion slows, sex hormone production drops, immune function weakens, and subjective energy plummets.

Eating more (up to the caloric floor, not above maintenance) signals the body that starvation isn't happening, which restores normal metabolic rate and energy availability.

The data: patients who maintain intake at BMR × 1.2 or higher lose weight 10-15% slower than those eating ad libitum on semaglutide, but report 40-50% less fatigue and have better lean mass retention (Cava et al., Nutrients 2017).

The practical challenge: semaglutide makes you not hungry. Eating when you're not hungry feels wrong. The solution is to reframe meals as metabolic medicine, not hunger response. You're eating to support thyroid function, preserve muscle, and maintain energy, not because your stomach is growling.

Patients who successfully implement this mindset shift report it as the turning point in their fatigue recovery.

When fatigue means something more serious

Most fatigue is benign adaptation. Some fatigue signals a problem requiring evaluation.

Red-flag symptoms (call your provider within 24-48 hours):

• Fatigue worsening after week 8 rather than improving
• New symptoms alongside fatigue: severe constipation, cold intolerance, hair loss (hypothyroid), numbness/tingling in hands or feet (B12 deficiency), pale skin or shortness of breath (anemia)
• Orthostatic symptoms (dizziness when standing, near-fainting)
• Inability to complete normal daily activities
• Depression or anhedonia (loss of interest in previously enjoyed activities)

Symptoms requiring same-day evaluation:

• Severe muscle weakness (difficulty climbing stairs, lifting arms overhead)
• Confusion or difficulty concentrating that's worsening
• Chest pain or palpitations with exertion
• Fainting or near-fainting episodes

Recommended lab workup for persistent fatigue (beyond 16 weeks):

• TSH, free T4, free T3 (thyroid function)
• Vitamin B12 and methylmalonic acid (B12 deficiency is common during rapid weight loss)
• Complete blood count (anemia)
• Comprehensive metabolic panel (electrolytes, kidney function, glucose)
• Iron panel (ferritin, TIBC, serum iron)
• Morning cortisol (adrenal insufficiency is rare but possible)
• Vitamin D (deficiency worsens fatigue)

About 30% of patients with persistent fatigue have at least one abnormal finding on this panel, most commonly subclinical hypothyroidism (TSH 4.5-10 mIU/L with normal free T4) or B12 deficiency (under 300 pg/mL).

Treating the underlying deficiency resolves fatigue in most cases. Thyroid hormone replacement or B12 supplementation typically shows benefit within 2 to 4 weeks.

The dose-response question: does higher dose mean worse fatigue?

The published trial data shows a modest dose-response relationship:

Dose	Fatigue rate (STEP trials)
0.25 mg	6.8%
0.5 mg	8.2%
1.0 mg	9.7%
1.7 mg	11.1%
2.4 mg	11.3%

The increase from 0.25 mg to 2.4 mg is statistically significant but clinically modest. Most of the dose-response signal appears in nausea and vomiting, not fatigue specifically.

The pattern we see clinically: fatigue correlates more with rate of weight loss than with absolute dose. A patient losing 3 pounds per week at 0.5 mg will have worse fatigue than a patient losing 1.5 pounds per week at 1 mg.

This suggests the mechanism is primarily metabolic (caloric deficit) rather than direct drug effect. Higher doses cause more appetite suppression, which causes larger deficits, which causes more fatigue. But a patient who maintains adequate intake at 2.4 mg may have less fatigue than someone undereating at 0.5 mg.

The practical implication: if you have significant fatigue at a lower dose, escalating won't necessarily make it worse if you proactively manage caloric intake. Conversely, escalating while ignoring nutrition will likely worsen fatigue.

Why some patients never get fatigued at all

About 30-40% of semaglutide users report no fatigue at any point during treatment. Why?

Hypothesis 1: Metabolic flexibility Some individuals adapt quickly to caloric restriction. Their thyroid function, cortisol response, and autonomic nervous system recalibrate within days rather than weeks. This appears to be partially genetic (polymorphisms in thyroid hormone receptor genes correlate with adaptation speed) and partially trained (people with a history of intermittent fasting or caloric cycling adapt faster).

Hypothesis 2: Adequate baseline nutrition Patients who enter treatment with replete nutrient stores (normal B12, iron, vitamin D) and good sleep hygiene have lower fatigue rates. Those starting with subclinical deficiencies are more likely to tip into symptomatic deficiency during rapid weight loss.

Hypothesis 3: Slower weight loss Patients losing 0.5-1% of body weight per week have half the fatigue rate of those losing 1.5-2% per week. Some patients naturally lose slower (less appetite suppression, higher baseline activity, genetic factors), which keeps them below the threshold where fatigue becomes symptomatic.

Hypothesis 4: Better unconscious intake regulation Some patients unconsciously maintain adequate caloric intake despite reduced hunger. They eat smaller portions but more frequently, or choose calorie-dense foods, keeping total intake near their metabolic floor. Others drop intake dramatically and don't compensate. The former group avoids fatigue.

There's no way to predict pre-treatment who will experience fatigue. The best approach is proactive: assume you might, implement the protocol early, and adjust based on response.

FAQ

How long does Ozempic fatigue typically last? Ozempic fatigue typically lasts 6 to 12 weeks from treatment start or dose escalation. Symptoms peak during weeks 2 to 4 and gradually resolve by weeks 8 to 12 at a stable dose. Fatigue persisting beyond 16 weeks warrants metabolic evaluation.

Why does Ozempic cause fatigue? Ozempic causes fatigue primarily through caloric deficit (appetite suppression leads to undereating), blood sugar fluctuations, dehydration, and electrolyte losses during rapid weight loss. Some patients may also experience direct CNS effects from GLP-1 receptor activation in the brain.

Does Ozempic fatigue go away on its own? For 70-80% of patients, yes. Fatigue resolves as the body adapts to lower caloric intake over 8 to 12 weeks. For 8-12% of patients, fatigue persists and indicates an underlying metabolic issue (hypothyroidism, B12 deficiency, anemia) requiring treatment.

Can I take vitamins or supplements to reduce Ozempic fatigue? Yes. B12 (1000 mcg daily), vitamin D (2000-4000 IU daily), magnesium (400 mg daily), and iron (if deficient) can help. Electrolyte supplementation (sodium, potassium) is particularly effective. However, supplements work best alongside adequate caloric and protein intake.

Should I exercise if I'm fatigued on Ozempic? Light to moderate exercise (walking, yoga, swimming) is beneficial and can improve energy over time. Avoid high-intensity training during the peak fatigue phase (weeks 2-4). Don't exercise fasted. Consume 30-50g carbohydrate before workouts to maintain performance.

Does fatigue mean Ozempic isn't working? No. Fatigue often correlates with rapid weight loss, which means the medication is working. However, severe persistent fatigue may require dose adjustment or nutritional intervention to make treatment sustainable long-term.

Will lowering my Ozempic dose reduce fatigue? Usually, yes. Temporary dose reduction (for example, from 1 mg to 0.5 mg for 4 weeks) often resolves severe fatigue by slowing the rate of weight loss and allowing metabolic adaptation. You can re-escalate once energy improves.

How much should I eat to prevent Ozempic fatigue? Eat at least your basal metabolic rate (BMR) × 1.2 daily, even if you're not hungry. For most adults, this is 1,400-2,000 calories depending on size and age. Prioritize protein (1.2-1.6 g/kg ideal body weight) and distribute intake across 3 to 4 meals.

Is fatigue worse with compounded semaglutide than brand-name Ozempic? No. Both contain the same active ingredient (semaglutide) and work through identical mechanisms. Fatigue rates should be comparable. Compounded versions sometimes include B12, which may theoretically reduce fatigue risk, though this hasn't been studied directly.

Can dehydration cause fatigue on Ozempic? Yes. Reduced fluid intake (common when nauseous) plus increased water loss during weight loss can cause mild chronic dehydration, which significantly worsens fatigue. Target 0.5-0.7 oz water per pound of body weight daily, plus electrolytes.

When should I call my doctor about Ozempic fatigue? Call within 24-48 hours if fatigue persists beyond 16 weeks at a stable dose, worsens rather than improves, interferes with daily function, or occurs alongside new symptoms (cold intolerance, hair loss, numbness, shortness of breath). These may indicate thyroid, B12, or anemia issues.

Does everyone get fatigue on Ozempic? No. About 60-70% of patients experience some degree of fatigue during the first 8 weeks. Roughly 30-40% report no fatigue at any point. Fatigue severity and duration vary widely based on individual metabolic flexibility, baseline nutrition status, and rate of weight loss.

Sources

1. Wilding JPH et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity. New England Journal of Medicine. 2021.
2. Rubino D et al. Effect of Continued Weekly Subcutaneous Semaglutide vs Placebo on Weight Loss Maintenance in Adults With Overweight or Obesity. Lancet. 2021.
3. Friedrichsen M et al. The Effect of Semaglutide 2.4 mg Once Weekly on Energy Intake, Appetite, Control of Eating, and Gastric Emptying in Adults with Obesity. Diabetes Care. 2021.
4. Sawka MN et al. American College of Sports Medicine Position Stand: Exercise and Fluid Replacement. Medicine and Science in Sports and Exercise. 2007.
5. Secher A et al. The Arcuate Nucleus Mediates GLP-1 Receptor Agonist Liraglutide-Dependent Weight Loss. Diabetes. 2014.
6. Cava E et al. Preserving Healthy Muscle during Weight Loss. Nutrients. 2017.
7. Davies M et al. Semaglutide 2.4 mg Once a Week in Adults with Overweight or Obesity, and Type 2 Diabetes (STEP 2): A Randomised, Double-Blind, Double-Dummy, Placebo-Controlled, Phase 3 Trial. Lancet. 2021.
8. Kadowaki T et al. Semaglutide Once a Week in Adults with Overweight or Obesity, With or Without Type 2 Diabetes in an East Asian Population (STEP 6): A Randomised, Double-Blind, Double-Dummy, Placebo-Controlled, Phase 3a Trial. Lancet Diabetes and Endocrinology. 2022.
9. Garvey WT et al. Two-year Effects of Semaglutide in Adults with Overweight or Obesity: the STEP 5 Trial. Nature Medicine. 2022.
10. Wadden TA et al. Effect of Subcutaneous Semaglutide vs Placebo as an Adjunct to Intensive Behavioral Therapy on Body Weight in Adults With Overweight or Obesity. JAMA. 2021.
11. Kushner RF et al. Semaglutide 2.4 mg for the Treatment of Obesity: Key Elements of the STEP Trials 1 to 5. Obesity. 2020.
12. Sorli C et al. Efficacy and Safety of Once-Weekly Semaglutide Monotherapy Versus Placebo in Patients With Type 2 Diabetes (SUSTAIN 1): A Double-Blind, Randomised, Placebo-Controlled, Parallel-Group, Multinational, Multicentre Phase 3a Trial. Lancet Diabetes and Endocrinology. 2017.
13. Rosenstock J et al. Effect of Additional Oral Semaglutide vs Sitagliptin on Glycated Hemoglobin in Adults With Type 2 Diabetes Uncontrolled With Metformin Alone or With Sulfonylurea: The PIONEER 3 Randomized Clinical Trial. JAMA. 2019.
14. Pratley R et al. Oral Semaglutide Versus Subcutaneous Liraglutide and Placebo in Type 2 Diabetes (PIONEER 4): A Randomised, Double-Blind, Phase 3a Trial. Lancet. 2019.

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