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Drug interactions

Amlodipine-atorvastatin + Lopinavir

Severity: Major

Amlodipine-atorvastatin and Lopinavir: major 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

Lopinavir boosted with ritonavir strongly inhibits CYP3A4, increasing amlodipine and atorvastatin exposure. This raises the risk of hypotension, edema and statin myopathy.

What this interaction means in plain words

Amlodipine-atorvastatin and Lopinavir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Amlodipine-atorvastatin belongs to Cardiovascular; Lopinavir belongs to Anti Virals.

Evidence level: Moderate

Why it happens

Ritonavir-boosted lopinavir inhibits CYP3A4, reducing metabolism of both components.

What to do

Use the lowest effective atorvastatin dose and avoid exceeding labeled limits. Monitor blood pressure, edema and muscle symptoms, reducing the amlodipine dose if needed.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amlodipine-atorvastatin with Lopinavir?

MediHelp rates the interaction as major. Amlodipine-atorvastatin and Lopinavir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Lopinavir boosted with ritonavir strongly inhibits CYP3A4, increasing amlodipine and atorvastatin exposure. This raises the risk of hypotension, edema and statin myopathy.

How serious is the interaction between Amlodipine-atorvastatin and Lopinavir?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective atorvastatin dose and avoid exceeding labeled limits. Monitor blood pressure, edema and muscle symptoms, reducing the amlodipine dose if needed.

What other medicines interact with Amlodipine-atorvastatin?

MediHelp also lists interactions of Amlodipine-atorvastatin with, for example, Amifostine, Apalutamide, Atazanavir. The full list is on the Amlodipine-atorvastatin page.

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