Drug interactions
Insulin detemir + Ritonavir
Severity: Moderate
Insulin detemir 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 can induce insulin resistance and hyperglycemia, reducing the effect of insulin detemir. Higher insulin doses may be needed.
What this interaction means in plain words
Insulin detemir 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.
Insulin detemir belongs to Endocrine; Ritonavir belongs to Anti Virals.
Why it happens
Protease inhibitors impair peripheral glucose uptake and induce insulin resistance.
What to do
Monitor blood glucose after starting ritonavir and titrate insulin detemir upward as needed. Re-evaluate the dose if ritonavir is stopped.
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 Insulin detemir
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 Insulin detemir with Ritonavir?
MediHelp rates the interaction as moderate. Insulin detemir 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 can induce insulin resistance and hyperglycemia, reducing the effect of insulin detemir. Higher insulin doses may be needed.
How serious is the interaction between Insulin detemir 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 blood glucose after starting ritonavir and titrate insulin detemir upward as needed. Re-evaluate the dose if ritonavir is stopped.
What other medicines interact with Insulin detemir?
MediHelp also lists interactions of Insulin detemir with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin detemir page.
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