Drug interactions
Atorvastatin + Pentobarbital
Severity: Moderate
Atorvastatin and Pentobarbital: 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
Pentobarbital induces CYP3A4 and may lower atorvastatin concentrations. This could reduce cholesterol-lowering efficacy.
What this interaction means in plain words
Atorvastatin and Pentobarbital 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.
Why it happens
Barbiturate induction of hepatic CYP3A4 increases atorvastatin metabolism.
What to do
Monitor the lipid profile and increase the atorvastatin dose if response is inadequate. Reassess the dose when the barbiturate 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 Atorvastatin
- Atorvastatin + Tipranavir Contraindicated
- Atazanavir + Atorvastatin Major
- Atorvastatin + Clarithromycin Major
- Atorvastatin + Cobicistat Major
- Atorvastatin + Cyclosporin Major
- Atorvastatin + Danazol Major
Frequently asked questions
Can I take Atorvastatin with Pentobarbital?
MediHelp rates the interaction as moderate. Atorvastatin and Pentobarbital 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. Pentobarbital induces CYP3A4 and may lower atorvastatin concentrations. This could reduce cholesterol-lowering efficacy.
How serious is the interaction between Atorvastatin and Pentobarbital?
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 the lipid profile and increase the atorvastatin dose if response is inadequate. Reassess the dose when the barbiturate is stopped.
What other medicines interact with Atorvastatin?
MediHelp also lists interactions of Atorvastatin with, for example, Tipranavir, Atazanavir, Clarithromycin. The full list is on the Atorvastatin page.
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