Fish Liver Oil — Safety & Interactions
Yu Gan You · Oleum Fecoris Piscis
Contraindicated / High risk. Use only under practitioner supervision.
Contraindications
- Pregnancy if retinol dose is not carefully controlled
- Existing hypervitaminosis A or vitamin A-sensitive liver disease
- Use of multiple vitamin A or vitamin D supplements without dose review
- Fish allergy or sensitivity to the specific product source
Cautions
- Fish liver oil is not the same as ordinary fish oil because vitamin A toxicity becomes a central concern at higher or repeated doses.
- Products vary widely in retinol, vitamin D, and omega-3 content, so brand-to-brand substitution is not trivial.
- MSK page not found - drug interaction data not available from Memorial Sloan Kettering integrative medicine database
Drug Interactions
| Drug Class / Substrate | Mechanism | Severity | Source |
|---|---|---|---|
| Retinoid medications or additional vitamin A supplements - additive toxicity risk | |||
| Anticoagulants or antiplatelet drugs - theoretical additive bleeding risk from omega-3 fractions | |||
| High-dose vitamin D supplements - possible additive hypercalcemia risk depending on product content | |||
Pregnancy
Not recommended during pregnancy. Consult a qualified practitioner before any use.
This information is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before using herbal medicines, especially if you take prescription medications.