Does Victoza cause constipation?
Bottom line
Yes. Constipation is listed among the common adverse reactions on Victoza's own FDA label, published 2025-10-14. It clusters in the days after each dose increase and settles in between, so the pattern is a few rough days per step rather than one continuous stretch.
No clinician has reviewed this page. Every clinical statement on it is drawn from the FDA label or the trial cited beside it, and every price carries the date it was verified — but that is sourcing, not medical review, and the two are not the same thing. What we do and do not check · Who checked the price
Last updated 2025-10-14 — the FDA label this page quotes. Read and dated by Alex Seot.
Does Victoza cause constipation?
Yes, and it is on the label rather than only in reports: constipation appears among the common adverse reactions in Victoza's FDA prescribing information, published 2025-10-14. Listed means it was seen often enough in the trials to be printed, not that everyone gets it. The same reaction is on the label of Saxenda too, because liraglutide is the same molecule in all of them — so this is a property of the substance rather than of the brand, and switching between them is not a way out of it. The same slowed gut transit that produces the fullness produces constipation at the other end. Eating much less compounds it: less food means less fibre and less fluid, and both are what keep things moving. It clusters in the days after each dose increase and settles in between, so the pattern is a few rough days per step rather than one continuous stretch. What helps, in the order worth trying: fluid first. It is the most common deficit and the easiest to fix; fibre added gradually rather than all at once, which otherwise trades constipation for bloating; movement, which does more for gut transit than most supplements; asking the prescriber about a stool softener or an osmotic laxative before reaching for a stimulant one. It stops being ordinary at a specific line: no bowel movement for several days with abdominal pain, distension or vomiting. That combination needs assessment rather than another laxative.
Why Victoza does this
The same slowed gut transit that produces the fullness produces constipation at the other end. Eating much less compounds it: less food means less fibre and less fluid, and both are what keep things moving.
What actually helps
- 1Fluid first. It is the most common deficit and the easiest to fix.
- 2Fibre added gradually rather than all at once, which otherwise trades constipation for bloating.
- 3Movement, which does more for gut transit than most supplements.
- 4Asking the prescriber about a stool softener or an osmotic laxative before reaching for a stimulant one.
Approved for type 2 diabetes rather than for weight. Saxenda is the same molecule at a higher dose with a weight-management approval.
When to stop reading and call someone
No bowel movement for several days with abdominal pain, distension or vomiting. That combination needs assessment rather than another laxative.
Separately, Victoza carries a boxed warning. In both sexes of rats and mice this molecule caused thyroid C-cell tumours at clinically relevant exposures. Whether it does so in people is unknown, and the label carries that as a boxed warning. It is contraindicated outright with a personal or family history of medullary thyroid carcinoma or MEN 2.
Constipation on Victoza, Saxenda — the same molecule, the same list
liraglutide is the active substance in all of Victoza, Saxenda, and constipation appears among the common adverse reactions on every one of their FDA labels. That makes it a property of the molecule rather than of the brand: moving between these products is a change of approved indication and dose ceiling, not a way out of this.
- Does Saxenda cause constipation?
label published 2026-06-15
The other 3 common reactions on Victoza's label
If you are thinking of switching
Constipation is on the label of most drugs in this class, so a switch is not a reliable way out of it. What a switch does change is what you pay.
Every alternative to Victoza, with each one's verified price and the date it was read →
Everything on Victoza
Victoza and constipation, answered
- Does Victoza cause constipation?
- Yes — constipation is listed among the common adverse reactions on Victoza's FDA prescribing information, published 2025-10-14. Listed means it was seen often enough in the trials to be printed, not that it happens to everyone.
- How long does Victoza constipation last?
- It clusters in the days after each dose increase and settles in between, so the pattern is a few rough days per step rather than one continuous stretch.
- What helps with constipation on Victoza?
- Fluid first. It is the most common deficit and the easiest to fix. Fibre added gradually rather than all at once, which otherwise trades constipation for bloating. Movement, which does more for gut transit than most supplements. Asking the prescriber about a stool softener or an osmotic laxative before reaching for a stimulant one.
- When is constipation on Victoza serious?
- No bowel movement for several days with abdominal pain, distension or vomiting. That combination needs assessment rather than another laxative.
- Would switching drugs help?
- Possibly, and possibly not — constipation is listed on the labels of most drugs in this class, so a switch is not a way out of it by default. What a switch does change is the price: every verified route to each molecule is priced on this site with the date each figure was read.
Everything above is read from FDA prescribing information for VICTOZA, published 2025-10-14. Information only, not medical advice — a symptom that worries you is a call to your prescriber, not a search result.