Drug interactions
Butalbital + Doxycycline
Severity: Moderate
Butalbital and Doxycycline: moderate 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
Butalbital is a barbiturate that may induce hepatic enzymes and reduce doxycycline half-life and exposure. Antibacterial effect may be diminished, particularly with repeated or chronic butalbital use.
What this interaction means in plain words
Butalbital and Doxycycline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Barbiturate-mediated enzyme induction increases doxycycline metabolism and clearance.
What to do
Monitor clinical response to doxycycline and consider dose adjustment or an alternative antibiotic if infection is severe or not responding.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Doxycycline
- Acitretin + Doxycycline Contraindicated
- Aminolevulinic acid + Doxycycline Major
- Cholera vaccine + Doxycycline Major
- Doxycycline + Isotretinoin Major
- Doxycycline + Methoxyflurane Major
- Doxycycline + Microbiota Major
Frequently asked questions
Can I take Butalbital with Doxycycline?
MediHelp rates the interaction as moderate. Butalbital and Doxycycline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Butalbital is a barbiturate that may induce hepatic enzymes and reduce doxycycline half-life and exposure. Antibacterial effect may be diminished, particularly with repeated or chronic butalbital use.
How serious is the interaction between Butalbital and Doxycycline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor clinical response to doxycycline and consider dose adjustment or an alternative antibiotic if infection is severe or not responding.
What other medicines interact with Doxycycline?
MediHelp also lists interactions of Doxycycline with, for example, Acitretin, Aminolevulinic acid, Cholera vaccine. The full list is on the Doxycycline page.
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