Drug interactions
Amobarbital + Atenolol-chlorthalidone
Severity: Minor
Amobarbital and Atenolol-chlorthalidone: 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 can lower concentrations of beta-blockers that are metabolized by the liver. Atenolol is mostly renally cleared, so the effect is small. Additive sedation and hypotension may still occur.
What this interaction means in plain words
Amobarbital and Atenolol-chlorthalidone 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-chlorthalidone belongs to Cardiovascular.
Why it happens
Amobarbital induces hepatic enzymes, though atenolol is minimally metabolized, so the pharmacokinetic effect is small.
What to do
No dose change is usually needed; monitor heart rate and blood pressure, and watch for orthostatic hypotension and sedation.
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-chlorthalidone
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-chlorthalidone?
MediHelp rates the interaction as minor. Amobarbital and Atenolol-chlorthalidone 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 can lower concentrations of beta-blockers that are metabolized by the liver. Atenolol is mostly renally cleared, so the effect is small. Additive sedation and hypotension may still occur.
How serious is the interaction between Amobarbital and Atenolol-chlorthalidone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is usually needed; monitor heart rate and blood pressure, and watch for orthostatic hypotension and sedation.
What other medicines interact with Atenolol-chlorthalidone?
MediHelp also lists interactions of Atenolol-chlorthalidone with, for example, Acebutolol, Aldesleukin, Amiodarone. The full list is on the Atenolol-chlorthalidone page.
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