Drug interactions
Amobarbital + Olaparib
Severity: Major
Amobarbital and Olaparib: 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
Amobarbital can reduce olaparib exposure by inducing CYP3A4. This may decrease its antitumor effectiveness.
What this interaction means in plain words
Amobarbital and Olaparib 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.
Amobarbital belongs to Central Nervous System; Olaparib belongs to Oncology.
Why it happens
CYP3A4 induction increases olaparib metabolism.
What to do
Avoid strong and moderate CYP3A inducers with olaparib and use an alternative to amobarbital. Monitor treatment response if combination cannot be avoided.
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?
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Other interactions of Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Doravirine Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
Other interactions of Olaparib
- Amiodarone + Olaparib Major
- Apalutamide + Olaparib Major
- Aprepitant + Olaparib Major
- Azathioprine + Olaparib Major
- Carbamazepine + Olaparib Major
- Carboplatin + Olaparib Major
Frequently asked questions
Can I take Amobarbital with Olaparib?
MediHelp rates the interaction as major. Amobarbital and Olaparib 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. Amobarbital can reduce olaparib exposure by inducing CYP3A4. This may decrease its antitumor effectiveness.
How serious is the interaction between Amobarbital and Olaparib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid strong and moderate CYP3A inducers with olaparib and use an alternative to amobarbital. Monitor treatment response if combination cannot be avoided.
What other medicines interact with Amobarbital?
MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Amobarbital page.
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