Glutathione 250 mg Ingredients & Drug Interactions
by NOW
What is this page for?
First and foremost: checking Glutathione 250 mg 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
Glutathione 250 mg is a dietary supplement by NOW with 1 active ingredient. Its ingredients are commonly taken for antioxidant support, skin lightening or brightening, detoxification support.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 Glutathione 250 mg by NOW
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.
What’s inside
Full disclosure
This product contains a single active ingredient: glutathione, a compound your body naturally makes from three amino acids. Glutathione acts as an antioxidant — it helps neutralize harmful molecules in your cells.
The capsule also contains rice flour, hypromellose, silicon dioxide, and magnesium stearate as inactive ingredients that help hold the capsule together.
Does it work?
Couldn't assess
The evidence we hold shows glutathione is possibly effective for reducing nerve damage caused by the chemotherapy drug cisplatin. For other uses — nonalcoholic fatty liver disease, Alzheimer disease, athletic performance, and cataracts — the evidence isn't established well enough to rate.
That doesn't mean it doesn't work; it means the studies we have aren't strong enough to make a call.
How safe is it?
Well-documented data
Oral glutathione appears generally well tolerated when used short-term, though long-term safety data is limited. One important caution: if you have asthma and use inhaled (nebulized) glutathione, it can trigger airway narrowing and coughing — oral forms don't carry that risk.
During pregnancy, there isn't enough reliable safety data, so it's best avoided unless your doctor advises otherwise. The same applies to breastfeeding — the safety information isn't there, so caution and avoidance are recommended.
Meds to double-check
No known interactions
No interactions are documented in our data for the glutathione in this product. Still, ask your pharmacist to verify your exact medications before you start — our data is thorough but not exhaustive, and new interactions may emerge.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
This supplement is most studied for protecting against chemotherapy nerve damage. If you're considering it for another reason, the evidence is still developing.
Because safety data in pregnancy and breastfeeding is limited, talk with your doctor or pharmacist before taking it if you're pregnant, breastfeeding, or planning to be. And bring your medications list with you to check.
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 Feb 25, 2021.
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 Glutathione 250 mg, straight from the product label.
| Brand | NOW |
|---|---|
| Barcode (UPC) | 733739000965 |
| Net contents | 60 Veg Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Feb 25, 2021 |
| DSLD ID | 244380 |
| 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), Gluten Free, Dairy Free |
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 Glutathione 250 mg by NOW, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Glutathione | 250 mg | -- |
Other ingredients: Rice Flour, Hypromellose, Silicon Dioxide, Magnesium Stearate
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.
Suggested/Recommended/Usage/Directions
Suggested Usage: Take 1 capsule daily, preferably on an empty stomach.
Formula
Glutathione is a small peptide molecule composed of three amino acids: cysteine, glutamic acid, and glycine. It is produced by every cell in the body, with epecially high levels in the liver. Glutathione is critical for healthy immune system function and is necessary for proper detoxification processes. It also plays a critical role in maintaining cellular health by directly neutralizing free radicals, as well as by maintaining the activity of vitamins C and E.
This product has Glutathione in its reduced, active form for optimal bioavailability.
Triangle K (Kosher)
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.
Precautions
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Formulation
Free Radical Neutralizer Reduced Active Form Detoxification Support
Non-GMO
Vegetarian/Vegan
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
Natural color variation may occur in this product.
FDA Statement of Identity
A Dietary Supplement
Seals/Symbols
Triangle K (Kosher)
GMP Quality Assured
General Statements
Amino Acids Family owned since 1968.
Storage
Store in a cool, dry place after opening.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Glutathione 250 mg by NOW 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 Glutathione 250 mg by NOW
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Veg Capsule(s) Dosage formCapsule Amounts shown are per serving.
Glutathione
No knowninteractions
Glutathione is a powerful antioxidant your body makes naturally, and many people take it as a supplement hoping for skin, detox, or anti-aging benefit...
Glutathione monograph & interactionsOther (inactive) ingredients: Rice Flour, Hypromellose, Silicon Dioxide, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
Glutathione 250 mg by NOW Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Glutathione 250 mg. 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 Glutathione 250 mg, from the product label.
NOW
See all NOW products- Name
- NOW FOODS
- Street Address
- 395 S. Glen Ellyn Rd.
- City
- Bloomingdale
- State
- IL
- ZipCode
- 60108
- Web Address
- www.nowfoods.com
Glutathione 250 mg by NOW: Common Questions
Does Glutathione 250 mg by NOW interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this if I'm pregnant?
Can I take this while breastfeeding?
Is this effective for liver health?
Does this help with athletic performance?
Are there any side effects?
What does glutathione do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Glutathione 250 mg 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.
The Full Monographs Behind Glutathione 250 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Glutathione 250 mg'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.
The 1 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.
Glutathione 1 reference
- Marrades RM, Roca J, Barbera JA, et al. Nebulized glutathione induces bronchoconstriction in patients with mild asthma. Am J Respir Crit Care Med 1997;156(2 Pt 1):425-30. PubMed
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