Drug interactions
Amobarbital + Atenolol
Severity: Minor
Amobarbital and Atenolol: minor 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 may lower levels of beta-blockers that are metabolized by the liver. Atenolol is mostly excreted unchanged by the kidney, so any reduction in effect is expected to be small.
What this interaction means in plain words
Amobarbital and Atenolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Amobarbital belongs to Central Nervous System; Atenolol belongs to Cardiovascular.
Why it happens
Barbiturate induction of hepatic CYP enzymes, with little relevance for renally cleared atenolol.
What to do
Monitor heart rate and blood pressure when starting or stopping amobarbital and adjust atenolol only if response changes.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Atenolol
- Amifostine + Atenolol Major
- Amiodarone + Atenolol Major
- Atenolol + Atenolol-chlorthalidone Major
- Atenolol + Betaxolol Major
- Atenolol + Bisoprolol Major
- Atenolol + Carvedilol 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 Atenolol?
MediHelp rates the interaction as minor. Amobarbital and Atenolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Barbiturates induce hepatic enzymes and may lower levels of beta-blockers that are metabolized by the liver. Atenolol is mostly excreted unchanged by the kidney, so any reduction in effect is expected to be small.
How serious is the interaction between Amobarbital and Atenolol?
MediHelp rates it minor, 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 adjust atenolol only if response changes.
What other medicines interact with Atenolol?
MediHelp also lists interactions of Atenolol with, for example, Amifostine, Amiodarone, Atenolol-chlorthalidone. The full list is on the Atenolol page.
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