Does Victoza cause constipation?
Bottom line
Yes. Constipation is listed among the common adverse reactions on Victoza's own FDA label, published 2025-11-17. It is worst in the days after each dose increase, and Victoza reaches its maintenance dose at week 2.
No clinician has reviewed this page. Label and trial statements are quoted from the FDA label or the trial cited beside them. General guidance is marked as such, and every price carries the date it was verified. That is sourcing, not medical review. What we do and do not check · Who checked the price
Last updated 2025-11-17 — 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 2025-11-17. Listed means it was seen often enough in the trials to be printed, not that it happens to everyone. The same reaction is on the label of Saxenda too. Liraglutide is the same molecule in all of them, so this belongs to the substance rather than the brand, and switching between them is no 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 fiber and less fluid, and both are what keep things moving. It clusters in the days after each dose increase. Victoza steps up on a published schedule that reaches the maintenance dose at week 2. Most people see a few rough days after each step and a settling in between, not one long stretch. Once you are at 1.2 mg or 1.8 mg once daily and no longer stepping up, the trigger stops recurring. What helps first: fluid first. It is the most common deficit and the easiest to fix. 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.
How long does Victoza constipation last?
One injection a day, at any time, with or without meals. Each row is a step up, and the days after each one are when this tends to arrive.
| Weeks | Dose |
|---|---|
| Week 1 | 0.6 mg |
| Week 2 and on | 1.2 mg |
| Week 3 at the earliest | 1.8 mg |
What helps with constipation on Victoza?
- 1Fluid first. It is the most common deficit and the easiest to fix.
- 2Fiber 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 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.
Separately, Victoza carries a boxed warning. In both sexes of rats and mice this molecule caused thyroid C-cell tumors 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, on every one of their labels
Liraglutide is the active substance in Victoza and Saxenda, and every one of their FDA labels lists constipation among the common adverse reactions. 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
Other reactions on Victoza's label with a page of their own
Would switching drugs help?
Constipation is on 12 of the 13 FDA labels tracked here, and every other product on the same molecule lists it too, so a switch within the molecule is not a 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 price and terms →
- Victoza cost without insurance →
- Alternatives to Victoza →
- Victoza dose schedule →
- How to inject Victoza →
- How long Victoza takes to work →
- Which labels record what happens when you stop →
- Hair loss: which of the labels name it →
- Alcohol: what the labels say, and what they do not →
- liraglutide: every product and price →
- Hone Health: the seller →
- Saxenda: the drug →
The listing, the schedule and the warnings are read from FDA prescribing information for VICTOZA, published 2025-11-17; the notes on why it happens and what helps are general guidance, not label text. Information only, not medical advice — a symptom that worries you is a call to your prescriber, not a search result.