Drug interactions
Liraglutide + Ritonavir
Severity: Moderate
Liraglutide and Ritonavir: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Ritonavir and other HIV protease inhibitors can cause insulin resistance and hyperglycemia, which may counteract the glucose-lowering effect of liraglutide. Loss of glycemic control may occur.
What this interaction means in plain words
Liraglutide and Ritonavir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Liraglutide belongs to Endocrine; Ritonavir belongs to Anti Virals.
Why it happens
Pharmacodynamic antagonism through protease inhibitor-induced insulin resistance and impaired glucose metabolism.
What to do
Monitor glucose and HbA1c after starting or changing ritonavir. Intensify antidiabetic therapy as needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Liraglutide
Other interactions of Ritonavir
- Alfuzosin + Ritonavir Contraindicated
- Amiodarone + Ritonavir Contraindicated
- Avanafil + Ritonavir Contraindicated
- Colchicine + Ritonavir Contraindicated
- Dronedarone + Ritonavir Contraindicated
- Eletriptan + Ritonavir Contraindicated
Frequently asked questions
Can I take Liraglutide with Ritonavir?
MediHelp rates the interaction as moderate. Liraglutide and Ritonavir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Ritonavir and other HIV protease inhibitors can cause insulin resistance and hyperglycemia, which may counteract the glucose-lowering effect of liraglutide. Loss of glycemic control may occur.
How serious is the interaction between Liraglutide and Ritonavir?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor glucose and HbA1c after starting or changing ritonavir. Intensify antidiabetic therapy as needed.
What other medicines interact with Liraglutide?
MediHelp also lists interactions of Liraglutide with, for example, Insulin degludec-liraglutide, Insulin glargine-lixisenatide, Alogliptin-metformin. The full list is on the Liraglutide page.
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