Drug interactions
Doravirine + Secobarbital
Severity: Contraindicated
Doravirine and Secobarbital: 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
Doravirine and Secobarbital 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.
Doravirine belongs to Anti Virals; Secobarbital belongs to Central Nervous System.
Why it happens
Barbiturate-mediated CYP3A4 induction increases doravirine metabolism.
What to do
Avoid the combination and use a non-inducing hypnotic or 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 Secobarbital
- Calcium / magnesium / potassium / sodium oxybates + Secobarbital Contraindicated
- Elbasvir / grazoprevir + Secobarbital Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Secobarbital Contraindicated
- Isavuconazonium + Secobarbital Contraindicated
- Lonafarnib + Secobarbital Contraindicated
- Lorlatinib + Secobarbital Contraindicated
Other interactions of Doravirine
- Amobarbital + Doravirine Contraindicated
- Apalutamide + Doravirine Contraindicated
- Carbamazepine + Doravirine Contraindicated
- Doravirine + Efavirenz Contraindicated
- Doravirine + Enzalutamide Contraindicated
- Doravirine + Mitotane Contraindicated
Frequently asked questions
Can I take Doravirine with Secobarbital?
MediHelp rates the interaction as contraindicated. Doravirine and Secobarbital 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 Doravirine and Secobarbital?
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 hypnotic or sedative. If an inducer is unavoidable, use an alternative antiretroviral regimen.
What other medicines interact with Secobarbital?
MediHelp also lists interactions of Secobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Elbasvir / grazoprevir, Elvitegravir / cobicistat / emtricitabine / tenofovir df. The full list is on the Secobarbital page.
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