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Can I take Alogliptin and Rybelsus together?

Drug interaction guide

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.

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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

You 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.

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Using other medicines

Taking 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.

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Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 25 Jan 2026 | Originally published
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