Drug interactions
Amobarbital + Doravirine
Severity: Contraindicated
Amobarbital and Doravirine: contraindicated 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
Barbiturates induce CYP3A4 and can substantially lower doravirine concentrations. This risks loss of virologic suppression and development of resistance. Doravirine labeling advises against strong CYP3A inducers.
What this interaction means in plain words
Amobarbital and Doravirine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Amobarbital belongs to Central Nervous System; Doravirine belongs to Anti Virals.
Why it happens
Barbiturate-mediated CYP3A4 induction increases doravirine metabolism.
What to do
Avoid the combination and use a non-inducing sedative. If an inducer is unavoidable, use an alternative antiretroviral regimen.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
- Amobarbital + Lorlatinib Contraindicated
Other interactions of Doravirine
- Apalutamide + Doravirine Contraindicated
- Carbamazepine + Doravirine Contraindicated
- Doravirine + Efavirenz Contraindicated
- Doravirine + Enzalutamide Contraindicated
- Doravirine + Mitotane Contraindicated
- Doravirine + Phenobarbitone Contraindicated
Frequently asked questions
Can I take Amobarbital with Doravirine?
MediHelp rates the interaction as contraindicated. Amobarbital and Doravirine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Barbiturates induce CYP3A4 and can substantially lower doravirine concentrations. This risks loss of virologic suppression and development of resistance. Doravirine labeling advises against strong CYP3A inducers.
How serious is the interaction between Amobarbital and Doravirine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use a non-inducing sedative. If an inducer is unavoidable, use an alternative antiretroviral regimen.
What other medicines interact with Amobarbital?
MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Elbasvir / grazoprevir, Isavuconazonium. The full list is on the Amobarbital page.
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