Drug interactions
Amobarbital + Caffeine
Severity: Minor
Amobarbital and Caffeine: 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
Caffeine is a stimulant and may partly offset the sedative effect of amobarbital, but the net result is unpredictable. Barbiturate enzyme induction may also increase caffeine clearance.
What this interaction means in plain words
Amobarbital and Caffeine 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; Caffeine belongs to Miscellaneous.
Why it happens
Opposing pharmacodynamic effects on CNS arousal, with possible induction of caffeine metabolism by CYP1A2.
What to do
No routine change is needed. Be aware that sedation may be less predictable, and limit caffeine if it interferes with sleep or sedation goals.
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 Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Doravirine Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
Other interactions of Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Frequently asked questions
Can I take Amobarbital with Caffeine?
MediHelp rates the interaction as minor. Amobarbital and Caffeine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Caffeine is a stimulant and may partly offset the sedative effect of amobarbital, but the net result is unpredictable. Barbiturate enzyme induction may also increase caffeine clearance.
How serious is the interaction between Amobarbital and Caffeine?
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 routine change is needed. Be aware that sedation may be less predictable, and limit caffeine if it interferes with sleep or sedation goals.
What other medicines interact with Amobarbital?
MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Amobarbital page.
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