Drug interactions
Amobarbital + Bisoprolol
Severity: Minor
Amobarbital and Bisoprolol: 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 partly metabolized by the liver, reducing their effect. Bisoprolol is cleared both renally and hepatically, so the effect is likely modest.
What this interaction means in plain words
Amobarbital and Bisoprolol 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; Bisoprolol belongs to Cardiovascular.
Why it happens
Barbiturate induction of hepatic CYP enzymes (including CYP3A4) increases bisoprolol metabolism.
What to do
Monitor heart rate and blood pressure and increase the bisoprolol dose if response is reduced; reassess when the barbiturate is stopped.
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 Bisoprolol
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 Bisoprolol?
MediHelp rates the interaction as minor. Amobarbital and Bisoprolol 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 partly metabolized by the liver, reducing their effect. Bisoprolol is cleared both renally and hepatically, so the effect is likely modest.
How serious is the interaction between Amobarbital and Bisoprolol?
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 and increase the bisoprolol dose if response is reduced; reassess when the barbiturate is stopped.
What other medicines interact with Bisoprolol?
MediHelp also lists interactions of Bisoprolol with, for example, Aldesleukin, Amifostine, Amiodarone. The full list is on the Bisoprolol page.
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