Semaglutide and Januvia: Is It Safe? Label, Studies
Usually not combined: a DPP-4 pill like Januvia adds no extra sugar lowering on a GLP-1.
- Verdict
- Avoid taking them together
- Label names it
- 0 of 3
- General caution
- Pills absorbed more slowly
Check a GLP-1 interaction
Wegovy overview
The half-life is about 1 week. After 7 d, half is gone, and about 3% remains after five half-lives (35 d).
Across 68 weeks of STEP 1, the result was 14.9% of body weight, compared with 2.4% on placebo.
Monthly prices in US dollars include the list price and self-pay offers. Each comes from the maker's price page.
Sources: FDA label (DailyMed), healthsystemtracker.org, prnewswire.com 1 2.
Semaglutide and Januvia: the verdict
Avoid taking them together
The Ozempic label includes these exact words in its drug interactions section:
“OZEMPIC causes a delay of gastric emptying, and thereby has the potential to impact the absorption of concomitantly administered oral medications. In clinical pharmacology trials,”
Source: FDA label (DailyMed).
Semaglutide label details
The Ozempic label does not mention Januvia (sitagliptin). It is still covered by those lines.
| Named in the label | The risk | What the label tells doctors |
|---|---|---|
| Insulin or sulfonylureas | Low blood sugar | Using this drug with insulin or a sulfonylurea, such as glipizide or glimepiride, raises the likelihood of low blood sugar. |
| Oral medicines | Pills absorbed differently | Because it slows stomach emptying, other pills may be absorbed differently. |
Source: Ozempic label (DailyMed).
What the studies show
- the guideline does not recommend it
- raises active GLP-1 the way Januvia does
Sources: diabetesjournals.org, FDA label (DailyMed).
The practical rule
- If both drugs are on your list, ask your prescriber if you still need the Januvia.
- Let your GLP-1 prescriber know about every pill you take, including this one.
- Ask your pharmacist if any pills you use need a steady blood level. They may need checks when treatment begins or your dose increases.
- Check your blood sugar more often during the first weeks and after each dose increase.
Source: FDA label (DailyMed).
Januvia with other GLP-1s
None of the 10 GLP-1 labels list Januvia (sitagliptin) in the drug interaction section. All of these medicines include the same general caution for swallowed pills, so the answer is the same for each one.
That question also covers Ozempic, Rybelsus, Trulicity.
Source: FDA label (DailyMed).