5-MTHF Ingredients & Drug Interactions
by Priority One Nutritional Supplements
What is this page for?
First and foremost: checking 5-MTHF against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
5-MTHF is a dietary supplement by Priority One Nutritional Supplements with 1 active ingredient.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of 5-MTHF by Priority One Nutritional Supplements
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
None of the active ingredients could be matched to our evidence database, so intended use can't be graded.
Why this rating?
- None of the active ingredients could be matched to a HelloPharmacist monograph, so intended use can't be graded against our evidence data.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 1 of its 1 active ingredient.
- No proprietary blends here — you can verify the dose of every single component.
None of the active ingredients could be matched to our interaction database.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was nothing to check interactions against.
None of the active ingredients could be matched to our safety data.
Why this rating?
- We couldn't match any ingredient to a HelloPharmacist monograph, so there was no safety data to measure.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Medication interactions could not be assessed, and safety information could not be assessed.
Assessment coverage: 0 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated May 24, 2023.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about 5-MTHF, straight from the product label.
| Brand | Priority One Nutritional Supplements |
|---|---|
| Barcode (UPC) | 815354021799 |
| Net contents | 120 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | May 24, 2023 |
| DSLD ID | 277332 |
| Product type | Vitamin |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for 5-MTHF by Priority One Nutritional Supplements, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Folate | 1700 mcg DFE | 425% |
Other ingredients: Rice Chelate, Gelatin, Water, Purified
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Precautions
Warning: If you are pregnant or breast feeding, consult your physician before using this product.
Keep out of reach of children.
For professional use only.
Suggested/Recommended/Usage/Directions
Recommendations: Take one (1) capsule daily, or as directed by your physician.
Storage
Keep container tightly closed, store in a cool, dry place.
Formulation
Contains no preservatives.
Non-GMO
General Statements
Bisphenol-A (BPA) & Phthalate Free
Seals/Symbols
GMP Certified
Brand IP Statement(s)
Priority One Nutritional Supplements Inc. Since 1988
Quatrefolic is a registered trademark of Gnosis S.p.A. Inc. U.S. Patent No. 7,947,662
Formula
(6S)-5-Methyltetrahydrofolic acid
FDA Statement of Identity
A Dietary Supplement
FDA Disclaimer Statement
This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
5-MTHF by Priority One Nutritional Supplements label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in 5-MTHF by Priority One Nutritional Supplements
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container120 Amounts shown are per serving.
Folate
Other (inactive) ingredients: Rice Chelate, Gelatin, Water, Purified. These complete the product’s ingredient list but are not active constituents.
5-MTHF by Priority One Nutritional Supplements Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in 5-MTHF. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for 5-MTHF, from the product label.
Priority One Nutritional Supplements
See all Priority One Nutritional Supplements products- Name
- Priority One Nutritional Supplements, Inc.
5-MTHF by Priority One Nutritional Supplements: Common Questions
Does 5-MTHF by Priority One Nutritional Supplements interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if 5-MTHF is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
Sources & How We Checked
5-MTHF's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC