Vitamin A and Minocycline: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Vitamin A
Minocycline
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
What happens
An increased risk of pseudotumor cerebri (benign intracranial hypertension)
Interaction Deep Dive
Coadministered minocycline and vitamin A may result in pseudotumor cerebri and associated adverse effects, including headache, papilledema, visual disturbances, nausea, and vomiting1. The risk of pseudotumor cerebri appears to be increased with long-term, combined use of these agents.
Why it happens (mechanism)
Additive toxicity
Literature reports
1 report — tap to read
a) A 16-year-old girl presented with headache of one month duration, vertical diplopia of 10 days duration, and nausea and vomiting. Six weeks earlier she had begun a course of vitamin A and minocycline for acne vulgaris. An eye examination showed bilateral disc edema, right disc single streak hemorrhage, right hypertropia, right superior oblique palsy, and paresis of the left lateral rectus muscle. She had slight hyperreflexia on the left side of the body. Computed tomography and magnetic resonance imaging showed no abnormalities. She was diagnosed with pseudotumor cerebri induced by vitamin A and minocycline coadministration. These drugs were withdrawn and, approximately 3 weeks later, her headache, nausea, and diplopia had improved considerably 1.
Common questions
Can I take Vitamin A and Minocycline together?
An increased risk of pseudotumor cerebri (benign intracranial hypertension) Always confirm with your pharmacist or prescriber before making any change.
How serious is the Vitamin A and Minocycline interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "delayed". Effects tend to build up gradually over days to weeks.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Vitamin A or Minocycline need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (1)
- Moskowitz Y, Leibowitz E, Ronen M, et al: Pseudotumor cerebri induced by vitamin A combined with minocycline. Ann Ophthalmol 1993; 25:306-308.
Keep reading about Minocycline
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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