Switching
Switching from the Wegovy injection to the pill
The label gives one rule for each direction. From the 2.4 mg weekly injection, start 25 mg tablets one week after the last injection. From the 25 mg tablet, start the 2.4 mg injection the day after the last tablet. The label says the 25 mg tablet gives concentrations comparable to the 2.4 mg injection, with more variation from person to person.
DM, the one who read the label
Sources checked Sep 28, 2026
Published Oct 16, 2026
Updated Oct 7, 2026 · 2 min read
The short answer
The label gives one rule for each direction. From the 2.4 mg weekly injection, start 25 mg tablets one week after the last injection. From the 25 mg tablet, start the 2.4 mg injection the day after the last tablet. The label says the 25 mg tablet gives concentrations comparable to the 2.4 mg injection, with more variation from person to person.
What the label says
The label has a section just for this, and it is short.
From the labelSwitching from WEGOVY Injection to WEGOVY Tablets. Patients taking WEGOVY 2.4 mg injection for cardiovascular risk reduction or weight reduction in adults may switch to WEGOVY 25 mg tablets. One week after discontinuing WEGOVY 2.4 mg injection, initiate 25 mg of WEGOVY tablets orally once daily.
From the labelSwitching from WEGOVY Tablets to WEGOVY Injection. Patients may switch from WEGOVY 25 mg tablets to WEGOVY injection. The day after discontinuing WEGOVY tablets 25 mg once daily, initiate WEGOVY 2.4 mg subcutaneous injection once weekly.
Injection to tablet: wait a week, then 25 mg every morning. Tablet to injection: the next day, 2.4 mg weekly. The label also warns not to use both at once or to estimate an equivalent dose on your own.
The two waits
The label gives no reason for them. What it does say elsewhere: the injection reaches its peak 1 to 3 days after the dose, a tablet within an hour, and semaglutide leaves at the same half-life of about one week from both.
What "comparable" means
The pharmacology section says that concentrations on the 25 mg tablet are predicted to be comparable to the 2.4 mg weekly injection, with higher variability. Behind that word is the tablet's nature: only about 1 to 2 percent of each tablet is absorbed, and that share moves with the morning, the water, the wait. The label's own figures put 90 percent of tablet users between 27 and 186 nmol/L, against 51 to 110 on the injection. Same middle, wider spread.
What people actually do
People who move from the injection to the tablet describe two surprises. The first is the morning: after a year of a weekly shot at any hour, the empty stomach and the 30 minutes are a new discipline. The second is the first weeks: some feel the tablet as weaker, some as identical, and the label's sentence about variability is the honest explanation for both.
Those who move the other way, from tablet to injection, most often do it because 25 mg was not tolerated, which is exactly the case the label writes down, with the 1.7 mg weekly injection as the destination.
Oolite tracks the tablet and the injection. On the label's switch, 2.4 mg to 25 mg, the level chart carries on from the injection rather than starting from zero, since the label calls the two comparable. From any other dose, it starts again from the first tablet and says why.
Questions people ask
Do I have to start the tablet at 1.5 mg after the injection?
Not by the label. It says that patients on the 2.4 mg injection may switch to 25 mg tablets, started one week after the last injection. The escalation from 1.5 mg is for people starting semaglutide, not for people already at the maintenance dose.
I was on a lower injection dose. Where do I start?
The label's switching rule is written for the 2.4 mg injection to the 25 mg tablet. It does not give a table for lower injection doses. That is your prescriber's decision.
Why one week one way and one day the other?
The label gives the two waits without a reason. What it does say: the injection reaches its peak 1 to 3 days after the dose, a tablet within an hour, and both leave at the same half-life of about one week.
Is 25 mg a day really the same as 2.4 mg a week?
The label says the concentrations are predicted to be comparable, with higher variability on the tablet. The tablet only delivers about 1 to 2 percent of its dose, and how much varies with the morning, which is why the label uses the word variability.
Sources
- Wegovy prescribing information, Novo Nordisk, §2.5 and §12.3, revised 06/2026 · Switching rules in both directions; oral 25 mg concentrations comparable to 2.4 mg injection with higher variability; bioavailability approximately 1 to 2 percent.
Sources checked Sep 28, 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
DM, the one who read the label
I make Oolite. I read every label revision the day it comes out and rewrite these answers when they change.
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