Drug interactions
Erythromycin base + Griseofulvin
Severity: Minor
Erythromycin base and Griseofulvin: 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
Griseofulvin might slightly reduce erythromycin concentrations through enzyme induction. Clinically important loss of antibacterial effect is unlikely.
What this interaction means in plain words
Erythromycin base and Griseofulvin 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
Griseofulvin is a weak CYP3A4 inducer that may enhance erythromycin metabolism.
What to do
No routine action is needed. Consider treatment failure if the infection fails to respond.
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 Griseofulvin
Frequently asked questions
Can I take Erythromycin base with Griseofulvin?
MediHelp rates the interaction as minor. Erythromycin base and Griseofulvin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Griseofulvin might slightly reduce erythromycin concentrations through enzyme induction. Clinically important loss of antibacterial effect is unlikely.
How serious is the interaction between Erythromycin base and Griseofulvin?
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 action is needed. Consider treatment failure if the infection fails to respond.
What other medicines interact with Griseofulvin?
MediHelp also lists interactions of Griseofulvin with, for example, Cyclosporin, Desogestrel-ethinyl estradiol, Dienogest / estradiol valerate. The full list is on the Griseofulvin page.
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