Drug interactions
Amobarbital + Baclofen
Severity: Major
Amobarbital and Baclofen: 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 and baclofen together produce additive CNS and respiratory depression, with a risk of profound sedation. Barbiturates may also lower the seizure threshold on baclofen withdrawal, complicating management.
What this interaction means in plain words
Amobarbital and Baclofen 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; Baclofen belongs to Musculoskeletal.
Why it happens
Additive CNS depression from GABA-B agonism by baclofen and GABA-A potentiation by amobarbital.
What to do
Avoid combining where possible; if necessary use reduced doses and monitor sedation level and respiratory rate. Do not stop baclofen abruptly.
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 Baclofen
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
Frequently asked questions
Can I take Amobarbital with Baclofen?
MediHelp rates the interaction as major. Amobarbital and Baclofen 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 and baclofen together produce additive CNS and respiratory depression, with a risk of profound sedation. Barbiturates may also lower the seizure threshold on baclofen withdrawal, complicating management.
How serious is the interaction between Amobarbital and Baclofen?
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 combining where possible; if necessary use reduced doses and monitor sedation level and respiratory rate. Do not stop baclofen abruptly.
What other medicines interact with Baclofen?
MediHelp also lists interactions of Baclofen with, for example, Alfentanil, Belladonna and opium, Benzhydrocodone / acetaminophen. The full list is on the Baclofen page.
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