Levels
Is 25 mg of the Wegovy pill the same as the 2.4 mg injection?
For the level in the blood, the label says yes on average: the 25 mg daily tablet is predicted to give concentrations comparable to the 2.4 mg weekly injection, with a wider spread from person to person. It is the only pair the label matches. For 1.5, 4 and 9 mg it gives no equivalent.
The Oolite team, from the FDA labels
Sources checked Oct 27, 2026
Published Oct 28, 2026
Updated Oct 27, 2026 · 3 min read
The short answer
For the level in the blood, the label says yes on average: the 25 mg daily tablet is predicted to give concentrations comparable to the 2.4 mg weekly injection, with a wider spread from person to person. It is the only pair the label matches. For 1.5, 4 and 9 mg it gives no equivalent.
What the label says
The comparison sits in the pharmacology section, in one sentence:
From the labelIn patients with overweight or obesity without type 2 diabetes, semaglutide concentrations following once-daily administration of oral WEGOVY 25 mg tablet are predicted to be comparable to WEGOVY 2.4 mg once-weekly injection, with higher variability in semaglutide concentrations compared to subcutaneous administration (90% of patients had average concentrations between 27 and 186 nmol/L with WEGOVY 25 mg tablet versus 51 and 110 nmol/L with WEGOVY 2.4 mg once-weekly injection).
Two words carry the answer. Comparable: the averages are close, about 77 nmol/L on the tablet, against about 75 nmol/L on the injection. Variability: the tablet's range is more than twice as wide.
The only pair the label matches
The switching section is built on that pair and no other.
From the labelPatients taking WEGOVY 2.4 mg injection for cardiovascular risk reduction or weight reduction in adults may switch to WEGOVY 25 mg tablets.
From the labelPatients may switch from WEGOVY 25 mg tablets to WEGOVY injection.
The same section adds one more door: for people who do not tolerate the 25 mg tablets, the label suggests the 1.7 mg injection. It gives no line for the 1.5, 4 or 9 mg tablets, and none for the lower injection doses. The label is silent on those, so there is no conversion to read off it.
Why the spread is wider on the tablet
The tablet goes through the stomach, and only a small share of it gets into the blood.
From the labelAbsolute bioavailability of semaglutide is estimated to be approximately 1% to 2% following oral tablet administration.
That share depends on the morning: the label's own studies measured more absorption with a longer wait before eating and with less water. The injection skips that step, which is why two people on the same tablet dose can sit further apart than two people on the same pen.
The sentence about type 2 diabetes
The comparison is written for people without type 2 diabetes. For people with it, the label notes lower average concentrations on the tablet and, if more is needed, suggests the 1.7 mg injection. The type 2 diabetes answer covers that case.
What it means in practice
If you are on 25 mg and wonder whether you are "getting less" than on the shot, the label's answer is no on average, with more room for your own mornings to move the number. If you are on 4 or 9 mg and want an injection equivalent, the label does not have one, and the question is your prescriber's.
The 25 mg tablet only keeps its side of the comparison when it is taken the way the label asks: on an empty stomach, with up to 4 ounces of water, and nothing else for 30 minutes.
What people actually do
On the forums, people who came to the pill from a pen compare the two all the time, and some of them are the most disappointed voices in the thread. The label's figures do not settle any one person's experience, but they say where to look first: the same average, a wider spread, and a tablet that depends on the morning it is taken.
Oolite logs the tablet and the injection in the same place. On the label's switch, 2.4 mg to 25 mg, the level chart carries on from the injection; for any other dose it starts again from the first tablet and says why.
Questions people ask
So 25 mg a day and 2.4 mg a week give the same level?
On average, by the label's prediction: about 77 nmol/L on the tablet and about 75 nmol/L on the injection. The difference is the spread. Nine people in ten fall between 27 and 186 nmol/L on the tablet, between 51 and 110 on the injection.
What is the injection equivalent of 4 mg or 9 mg?
The label does not give one. Its switching section is written for 2.4 mg of injection and 25 mg of tablets only. Moving at another dose is a decision your prescriber makes without a table from the label.
Why does the tablet vary more?
Only about 1 to 2 percent of each tablet is absorbed, and the label's studies show that share moves with the water and with the time before the first meal. A weekly injection does not go through the stomach, so it does not depend on the morning.
Does the label say they work the same?
This page is about levels in the blood, the comparison the label makes in its pharmacology section. It does not compare outcomes between the two forms, and neither does this page.
Sources
- Wegovy prescribing information, Novo Nordisk, §12.3, revised 06/2026 · Average steady state about 77 nmol/L on the 25 mg tablet; predicted comparable to the 2.4 mg weekly injection with higher variability; 90 percent of patients between 27 and 186 nmol/L on the tablet versus 51 and 110 nmol/L on the injection; absolute bioavailability about 1 to 2 percent.
- Wegovy prescribing information, Novo Nordisk, §2.5, revised 06/2026 · Switching rules written for 2.4 mg injection and 25 mg tablets only; 1.7 mg injection for people who do not tolerate 25 mg tablets.
- How the level chart is modelled
Sources checked Oct 27, 2026. This page is information, not medical advice: read the medical disclaimer, and talk to your prescriber or pharmacist about your own treatment.
Written by
The Oolite team, from the FDA labels
We make Oolite. Every answer starts from the FDA prescribing information, quoted word for word, and is rewritten when a label changes.
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