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Dietary supplement

Medi-Chlorella-FX Ingredients & Drug Interactions

by Premier Research Labs

Medi-Chlorella-FX label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Medi-Chlorella-FX 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

The interaction bottom line Most serious interaction: Moderate

Medi-Chlorella-FX is a dietary supplement by Premier Research Labs with 1 active ingredient. Its ingredients are commonly taken for general nutrition and 'detox' support, immune support, liver and kidney support.Based on those ingredients, 337 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are organic Chlorella. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Medi-Chlorella-FX by Premier Research Labs

Ask about any prescription or over-the-counter medication and we check it for interactions with Medi-Chlorella-FX by Premier Research Labs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Medi-Chlorella-FX by Premier Research Labs

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 20, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

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.

Medi-Chlorella-FX contains one active ingredient: organic chlorella, a single-celled freshwater algae. The capsule itself is made from plant-source material.

Chlorella is a whole food source — it's not a vitamin or mineral, but a concentrate of the entire organism. It comes with its own nutrient profile, including protein, B vitamins, chlorophyll, and notably, vitamin K.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
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

This product doesn't appear to be marketed for a specific use, so we graded Chlorella's overall clinical evidence instead.

Moderate

Some clinical evidence supports Chlorella for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Pregnancy-related iron deficiency — rated "Possibly Effective" (Natural Medicines).

The evidence we hold shows chlorella is possibly effective for pregnancy-related iron deficiency. For brain tumor, nonalcoholic fatty liver disease (NAFLD), depression, and fatigue, the evidence isn't established enough to rate — we simply don't have reliable data on whether it works for those purposes.

The evidence, ingredient by ingredient Chlorella

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Chlorella is generally well tolerated over the short term, but product quality and purity vary widely between brands, which is worth keeping in mind. The safety data isn't established long term, so avoid it unless your doctor approves.

The most common side effects are allergic reactions, abdominal cramping, constipation, diarrhea, fatigue, gas, nausea, photosensitivity, and green-colored stool — many of which tend to ease after the first couple of weeks. Rare serious effects include anaphylaxis (a severe allergic reaction).

A small number of trial participants reported nausea or diarrhea; in one study, a few people experienced worsening constipation or mild diarrhea early on.

Side effects, ingredient by ingredient Chlorella

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Chlorella.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 337 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check with your doctor or pharmacist before taking this if you're on warfarin (Coumadin) or any blood thinner that works similarly — chlorella may reduce how well it prevents clots. Also clear it first if you take photosensitizing drugs (medications that increase your skin's sensitivity to sun damage), since chlorella may add to that effect.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Chlorella may be worth considering if you're pregnant with low iron and your doctor recommends it, since that's the one use with some supporting evidence. If you take warfarin or any medication that makes you sensitive to sunlight, talk with your doctor or pharmacist before starting — the interactions are real.

And because long-term safety isn't nailed down and quality varies, it's a good idea to run this past your own healthcare provider before you begin.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 2022.

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

At a glance

General information

Key facts about Medi-Chlorella-FX, straight from the product label.

Brand Premier Research Labs
Barcode (UPC) 807735023102
Net contents 120 Plant-Source Capsule(s)
Market status On market
Date entered into DSLD Jun 16, 2022
DSLD ID 268956
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher
From the label
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 Medi-Chlorella-FX by Premier Research Labs, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
60
UPC/BARCODE
807735023102
IngredientAmount% DV
organic Chlorella636 mg--

Other ingredients: Plant-Source Capsules

Tap any ingredient to jump to its full detail below.

Label statements
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.
Suggested/Recommended/Usage/Directions

Suggested Use: Take 2 capsules, 2 times daily or as directed by a health professional.

Formula

Premier quality chlorella (broken cell wall), grown in fresh water

Pure, broken cell wall chlorella PhytoNutrient-dense super greens

Premier quality chlorella: Patented broken cell wall process utilized for superior absorption

OU (Kosher) We are proud to offer many OU Kosher Certified products.

Formulation

A famous, ancient phytonutrient super star treasured by many cultures for centuries for optimal health and cleansing

PRL's quality guarantee Purity verified Identity verified Tested for adulterants No chemical or radiation sterilization Pathogen microbiology performed Heavy metal tested Composition verified

Pure vegan

Non-GMO

PRL's quality program. Manufactured to avoid: added magnesium stearate (an undesirable excipient), artificial colors, artificial flavors or artificial preservatives.

Manufactured in a cGMP compliant facility for superior quality assurance

Precautions

Tamper Seal: Use only if seal is intact.

Consult your health care practitioner if you are pregnant/nursing, taking medications or have a medical condition, before taking this or any other product.

Keep out of reach of children.

Storage

Store in a cool, dry place.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

OU (Kosher) We are proud to offer many OU Kosher Certified products.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Medi-Chlorella-FX by Premier Research Labs label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Medi-Chlorella-FX label

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)
What’s inside

The Ingredients in Medi-Chlorella-FX by Premier Research Labs

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Organic Chlorella

Interacts with
337 drugs
636 mg per serving

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies sugges...

Organic Chlorella monograph & interactions

Other (inactive) ingredients: Plant-Source Capsules. These complete the product’s ingredient list but are not active constituents.

Interaction report

Medi-Chlorella-FX by Premier Research Labs Drug Interactions

Want to check YOUR meds against Medi-Chlorella-FX?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
337Drugs
337 Moderate

Ingredients driving the most interactions

organic Chlorella 337

Individual Drug Interactions

The ingredients in Medi-Chlorella-FX interact with 337 drugs. Click any drug to see the details.

1 of the 1 ingredient in Medi-Chlorella-FX interact with drugs. Each result below shows which ingredient is responsible. organic Chlorella

Each ingredient & the kinds of drugs it affects

For each ingredient in Medi-Chlorella-FX with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

organic Chlorella2 drug types · 337 drugs

Photosensitizing Drugs

Theoretically, chlorella might have additive effects with photosensitizing drugs.
Chlorella has been reported to cause photosensitization. In five case reports, patients who had ingested chlorella exhibited swelling followed by erythematopurpuric lesions on sun-exposed areas of the body. Theoretically, concomitant use with photosensitizing drugs may exacerbate effects.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, chlorella might reduce the clinical effects of warfarin.
Chlorella contains significant amounts of vitamin K. There is at least one case report of warfarin therapy becoming sub-therapeutic after initiation of chlorella supplements.

Likelihood Possible Evidence D
organic Chlorella full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Medi-Chlorella-FX, from the product label.

Premier Research Labs

See all Premier Research Labs products
Name
Premier Research Labs
Pharmacist Counseling Corner

Medi-Chlorella-FX by Premier Research Labs: Common Questions

Does Medi-Chlorella-FX by Premier Research Labs interact with any medications?
Yes. Based on its ingredients, Medi-Chlorella-FX has a known interaction with 337 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Medi-Chlorella-FX contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will chlorella help with my fatigue?
The evidence isn't established yet. We don't have reliable data showing chlorella works for fatigue, so we can't say either way. If you're interested, it's worth talking through with your doctor.
Is chlorella safe to take while I'm pregnant?
The data shows it's possibly safe during pregnancy, but safety hasn't been fully established — there just isn't enough research. Talk it over with your doctor to see if chlorella makes sense for you and your baby.
Can chlorella cause allergic reactions?
Yes. Allergic reactions, including asthma and in rare cases anaphylaxis (a severe, life-threatening reaction), have been reported. If you've ever had allergies to algae or similar products, mention it to your doctor or pharmacist before you start.
What's the green discoloration of my stool from chlorella?
Green stool is a harmless side effect — it's just the chlorophyll and other pigments from the algae coming through. It's normal and isn't a sign anything is wrong.
Why does the label say there are 337 interactions if this is only one ingredient?
That number reflects all the individual medications in each interaction category (photosensitizing drugs and warfarin-like blood thinners). Chlorella may theoretically interact with any drug in those categories, which adds up to hundreds of medications across both groups. Your specific drug may or may not be one of them — use the checker on this page to find out.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Medi-Chlorella-FX is safe with your meds?

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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.

Medi-Chlorella-FX label
Go deeper

The Full Monographs Behind Medi-Chlorella-FX’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Chlorella

Interacts with 337 drugs

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies suggest possible benefits for cholesterol, blo...

Read the full Chlorella monograph →
Sources

Sources & How We Checked

Medi-Chlorella-FX'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.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 13 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Chlorella 13 references
  1. Peirce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York, NY: William Morrow and Co., 1999.
  2. Ng TP, Tan WC, Lee YK. Occupational asthma in a pharmacist induced by chlorella, a unicellular algae preparation. Resp Med 1994;88:555-7. PubMed
  3. Jitsukawa K, Suizu R, Hidano A. Chlorella photosensitization. New phytophotodermatosis. Int J Dermatol 1984;23:263-8. PubMed
  4. Merchant RE, Carmack CA, Wise CM. Nutritional supplementation with Chlorella pyrenoidosa for patients with fibromyalgia syndrome: a pilot study. Phytother Res 2000;14:167-73.
  5. Merchant RE, Rice CD, Young HF. Dietary Chlorella pyrenoidosa for patients with malignant glioma: effects on immunocompetence, quality of life, and survival. Phytother Res 1990;4:220-31.
  6. Halperin SA, Smith B, Nolan C, et al. Safety and immunoenhancing effect of a Chlorella-derived dietary supplement in healthy adults undergoing influenza vaccination: randomized, double-blind, placebo-controlled trial. CMAJ 2003;169:111-7..
  7. Ohtake, T., Negishi, K., Okamoto, K., Oka, M., Maesato, K., Moriya, H., and Kobayashi, S. Manganese-induced Parkinsonism in a patient undergoing maintenance hemodialysis. Am J Kidney Dis 2005;46(4):749-753. PubMed
  8. Ng, T. P., Tan, W. C., and Lee, Y. K. Occupational asthma in a pharmacist induced by Chlorella, a unicellular algae preparation. Respir.Med. 1994;88(7):555-557. PubMed
  9. Ohkawa, S., Yoneda, Y., Ohsumi, Y., and Tabuchi, M. [Warfarin therapy and chlorella]. Rinsho Shinkeigaku 1995;35(7):806-807.
  10. Azocar J, Diaz A. Efficacy and safety of chlorella supplementation in adults with chronic hepatitis C virus infection. World J Gastroenterol 2013;19(7):1085-90. PubMed
  11. Panahi Y, Badeli R, Karami GR, Badeli Z, Sahebkar A. A randomized controlled trial of 6-week Chlorella vulgaris supplementation in patients with major depressive disorder. Complement Ther Med 2015;23(4):598-602. PubMed
  12. Nakano S, Takekoshi H, Nakano M. Chlorella pyrenoidosa supplementation reduces the risk of anemia, proteinuria and edema in pregnant women. Plant Foods Hum Nutr 2010;65(1):25-30. PubMed
  13. Yavasoglu I, Turgutkaya A, Bolaman Z. Chlorella-induced thrombocytopenia. Sao Paulo Med J 2018;136(6):602-3. PubMed

See these in context on the Chlorella monograph →

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

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