Supplement stacks / Methotrexate + Omega-3

Can You Take Methotrexate with Omega-3?

Methotrexate and Omega-3: one interaction flagged, scored 6/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

Safety at a glance

Medium risk
Safety score6/10

This score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.

What the AI-written analysis says

Methotrexate is a potent medication used primarily for autoimmune diseases and certain cancers, while Omega-3 fatty acids are commonly used for their anti-inflammatory properties. There is limited evidence regarding the interaction between these two substances, but caution is advised due to the potential for Omega-3 to affect the metabolism of Methotrexate. Users should consult their healthcare provider before combining these substances.

Methotrexate is a prescription medication. This page describes publicly documented interactions — it can't see your dose, your other prescriptions, or your labs. Discuss any supplement with the prescriber or pharmacist who manages this medication before combining.

Known interactions

Methotrexate × Omega-3
medium risk

Omega-3 fatty acids may influence the metabolism of Methotrexate, potentially altering its effectiveness. Monitor for changes in therapeutic effects and consult your healthcare provider.

Methotrexate

From the AI-written analysis.

Methotrexate can cause significant side effects, including liver toxicity, bone marrow suppression, and gastrointestinal issues. Regular monitoring of liver function and blood counts is essential.

Typical dosage: As prescribed or as directed on the label

Common side effects:
  • Nausea
  • Fatigue
  • Mouth sores
  • Liver enzyme elevation
Warnings:
  • Regular blood tests are necessary to monitor for toxicity; avoid alcohol to reduce liver strain.

Omega-3

From the AI-written analysis.

Generally considered safe when taken at recommended doses, but high doses can increase bleeding risk and may affect immune function.

Typical dosage: Typically 1,000 to 3,000 mg per day, depending on the formulation.

Common side effects:
  • Fishy aftertaste
  • Gastrointestinal upset
  • Increased bleeding risk at high doses
Warnings:
  • Consult healthcare provider before use, especially if on anticoagulants or other medications.

Timing

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it. Consult your healthcare provider for personalized timing advice.

Frequently asked questions

Can you take Methotrexate and Omega-3 together?

Methotrexate and Omega-3: one interaction flagged, scored 6/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

What score does the Methotrexate and Omega-3 combination get?

The Methotrexate and Omega-3 combination is scored 6/10 (medium risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice. Always confirm with a healthcare professional.

When should you take Methotrexate and Omega-3?

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it. Consult your healthcare provider for personalized timing advice.

Check your full stack

Taking more than these two? Add everything you take, medicines included, to your list. We check each supplement on your list against the rest of it, and name anything we could not check. Free, and you don’t need an account.

Analyze my stack

What your DNA adds

Some genes in a raw 23andMe or AncestryDNA file are linked to how the body handles nutrients. The DNA report says what yours are linked to and, where there is one, which blood test would tell you more.

See the DNA report

AI-written analysis generated August 28, 2026, checked by our interaction rules · How our analysis works