Is Biotin Safe with Isotretinoin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Isotretinoin may deplete biotin levels. Supplementation at standard doses (2.5–5mg/day) may be appropriate but should be discussed with your dermatologist. Avoid mega-dose biotin (>10mg/day) as it can interfere with laboratory tests used to monitor isotretinoin therapy.
Why this interaction occurs
Isotretinoin affects lipid metabolism pathways where biotin-dependent carboxylase enzymes play a role. High-dose biotin supplementation is well-documented to cause false results in immunoassay-based lab tests including thyroid panels and lipid monitoring tests critical during isotretinoin therapy.
Evidence
Evidence level: moderate.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 16,069 reports mentioning Isotretinoin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Isotretinoin + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Biotin interactions → · All Isotretinoin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.