Drug interactions
Amobarbital + Betaxolol
Severity: Moderate
Amobarbital and Betaxolol: 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
Barbiturates induce hepatic enzymes and can lower concentrations of beta-blockers that are metabolized by the liver. Betaxolol is cleared partly by the liver, so its effect may be reduced, though renally cleared beta-blockers are less affected.
What this interaction means in plain words
Amobarbital and Betaxolol 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.
Amobarbital belongs to Central Nervous System; Betaxolol belongs to Cardiovascular.
Why it happens
Amobarbital induces hepatic CYP enzymes, increasing betaxolol metabolism.
What to do
Monitor heart rate and blood pressure when starting or stopping amobarbital and increase the betaxolol dose if the response is lost. Reassess the dose after the barbiturate is discontinued.
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 Betaxolol
- Acebutolol + Betaxolol Major
- Aldesleukin + Betaxolol Major
- Amifostine + Betaxolol Major
- Amiodarone + Betaxolol Major
- Atenolol-chlorthalidone + Betaxolol Major
- Atenolol + Betaxolol Major
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 Betaxolol?
MediHelp rates the interaction as moderate. Amobarbital and Betaxolol 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. Barbiturates induce hepatic enzymes and can lower concentrations of beta-blockers that are metabolized by the liver. Betaxolol is cleared partly by the liver, so its effect may be reduced, though renally cleared beta-blockers are less affected.
How serious is the interaction between Amobarbital and Betaxolol?
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 heart rate and blood pressure when starting or stopping amobarbital and increase the betaxolol dose if the response is lost. Reassess the dose after the barbiturate is discontinued.
What other medicines interact with Betaxolol?
MediHelp also lists interactions of Betaxolol with, for example, Acebutolol, Aldesleukin, Amifostine. The full list is on the Betaxolol page.
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