Can I take Alogliptin and Rybelsus together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
Taking alogliptin and Rybelsus (semaglutide) together can significantly increase the risk of your blood sugar dropping too low (hypoglycaemia). Additionally, both medicines work in a similar way on the same hormonal pathway, and using them together is generally not recommended because it does not provide extra benefit but increases the risk of side effects.
In this article:
Continue reading below
Why this happens
Both drugs target the 'incretin' system. Alogliptin (a DPP-4 inhibitor) prevents the breakdown of natural hormones that lower blood sugar, while Rybelsus (a GLP-1 receptor agonist) mimics those same hormones. Using both is like 'doubling up' on the same biological process, which can lead to an over-correction of blood sugar levels.
What you should do
Back to contentsYou should speak to your doctor or pharmacist before taking these together. Clinical guidelines usually recommend stopping the DPP-4 inhibitor (alogliptin) when starting a GLP-1 medicine like Rybelsus. If your doctor has specifically told you to take both, be very alert for signs of low blood sugar, such as feeling shaky, sweaty, dizzy, or hungry.
Continue reading below
Using other medicines
Back to contentsTaking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
Patient picks for Drug interactions

Treatment and medication
Can I take Amlodipine and Chemydur 60xl together?
Taking amlodipine and Chemydur 60XL (isosorbide mononitrate) together can cause your blood pressure to drop lower than intended. This may make you feel dizzy, lightheaded, or faint, especially when you stand up quickly from a sitting or lying position.

Treatment and medication
Can I take 50 and Vitamin b3 together?
Taking 5-HTP (5-hydroxytryptophan) and Vitamin B3 (Niacin) together can lead to an increase in serotonin levels in the body. While both are often used to support mood, taking them at the same time might cause your serotonin levels to become too high. This can lead to side effects like feeling jittery, a racing heart, or nausea. Additionally, Vitamin B3 can sometimes cause 'flushing' (red, itchy, or hot skin), and 5-HTP may make some people feel more sensitive to these side effects.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 2026 | Originally published

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.