Drug interactions
Caffeine + Quazepam
Severity: Minor
Caffeine and Quazepam: 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 can reduce the hypnotic effect of quazepam and may impair sleep. Patients may have inadequate sleep response if caffeine is taken late in the day.
What this interaction means in plain words
Caffeine and Quazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Caffeine's adenosine receptor blockade opposes GABA-A mediated sedation by the benzodiazepine.
What to do
Advise avoiding caffeine in the evening and do not raise the quazepam dose to compensate.
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 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 Caffeine with Quazepam?
MediHelp rates the interaction as minor. Caffeine and Quazepam 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 can reduce the hypnotic effect of quazepam and may impair sleep. Patients may have inadequate sleep response if caffeine is taken late in the day.
How serious is the interaction between Caffeine and Quazepam?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise avoiding caffeine in the evening and do not raise the quazepam dose to compensate.
What other medicines interact with Caffeine?
MediHelp also lists interactions of Caffeine with, for example, Ephedrine, Fezolinetant, Methylenedioxymethamphetamine. The full list is on the Caffeine page.
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