Formula 103 Ingredients & Drug Interactions
by DC
What is this page for?
First and foremost: checking Formula 103 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
Formula 103 is a dietary supplement by DC with 1 active ingredient. Its ingredients are commonly taken for high cholesterol, heart health support, blood sugar support.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Barley Grass. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Formula 103 by DC
Ask about any prescription or over-the-counter medication and we check it for interactions with Formula 103 by DC — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Formula 103 by DC
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
Formula 103 is a single-ingredient powder: barley grass. That's the whole active component — no other active ingredients are in the mix.
There are no other inactive ingredients listed.
Does it work?
Strong evidence
Barley grass is rated likely effective for high cholesterol (hypercholesterolemia) and coronary heart disease (CHD). Those are the only conditions we have effectiveness data for in this product.
How safe is it?
Well-documented data
Barley grass is generally well tolerated when taken by mouth. The most common side effects are mild: bloating, gas, abdominal distension, and an unpleasant taste.
Some people who are sensitive may have allergic reactions, including tingling around the mouth and face, hives, chest tightness, or trouble breathing — and in rare cases, anaphylaxis. Barley contains gluten, so if you have celiac disease or gluten sensitivity, this product isn't for you.
Safety data on concentrated barley grass supplements in pregnancy and breastfeeding is limited; there isn't enough information to say whether it's safe. Talk with your doctor or pharmacist if you're pregnant or nursing and want to use it.
Meds to double-check
Moderate interaction found
If you take triclabendazole (Egaten), a parasite medication, barley grass may reduce its effectiveness — check with your doctor or pharmacist before combining them.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
If you have high cholesterol or coronary heart disease and want to try a whole-food approach, barley grass may be worth discussing with your doctor. If you take triclabendazole, check with your doctor before adding this — the two may interfere.
And if you have celiac disease, gluten sensitivity, or a history of allergic reactions to grains, skip it. Your own pharmacist or doctor can help you decide whether it fits your situation.
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 Formula 103, straight from the product label.
| Brand | DC |
|---|---|
| Barcode (UPC) | 052301103096 |
| Net contents | 9 Ounce(s); 255 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Feb 25, 2021 |
| DSLD ID | 244566 |
| Product type | Botanical |
| Supplement form | Powder |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years), Kosher, Women (not pregnant or lactating), Gluten 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 Formula 103 by DC, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Barley Grass | 0.6 Gram(s) | -- |
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.
Formulation
Dee Cee's Premium Barley Grass is grown in the United States on the midwestern plains. Immediately after harvest it is dried by a special process that uses dehumidified air rather than heat to remove the moisture. Barley Grass is an excellent source of chlorophyll and contains many nutrients found in dark green leafy vegetables. It is grown on farms that use no chemical sprays or pesticides.
Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)
No additives or dilutents. Gluten free
Made in USA
Precautions
Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Caution: If you are pregnant or nursing do not take this product.
Keep out of reach of children.
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).
Formula
100% whole leaf barley grass powder
Barley grass powder
Ko Kosher Service
Seals/Symbols
Quali Pure
Ko Kosher Service
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Recommended Use: As a dietary supplement, stir 1 to 2 heaping teaspoonfuls of powder into cold water or other beverage as desired.
General Statements
Notice: This product is sold by weight, not volume. You can be assured of proper weight even though some settling of contents may occur during shipping and handling.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Formula 103 by DC 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 Formula 103 by DC
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Heaping Teaspoon(s) Dosage formPowder Servings per container42 Amounts shown are per serving.
Barley Grass
Interacts with1 drug
Barley is a nutritious whole grain that is a good source of soluble fiber called beta-glucan, which has solid evidence for modestly lowering LDL ('bad...
Barley Grass monograph & interactionsFormula 103 by DC Drug Interactions
HelloPharmacist Interaction Report
Formula 103 by DC contains barley grass, which has one documented interaction: it may theoretically reduce how well triclabendazole (Egaten), a medication used to treat certain parasitic infections, works in your body.
Animal studies suggest barley can lower the amount of triclabendazole your system absorbs when you take them together, though this hasn't been proven in people yet.
Read the full breakdown — every affected drug type, severity by severity
If you take triclabendazole, talk with your doctor or pharmacist before starting this product — they can advise whether the timing or dosing of either one needs to change. Use the medication checker on this page to see your exact prescriptions.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Formula 103?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Formula 103 interact with 1 drug. Click any drug to see the details.
1 of the 1 ingredient in Formula 103 interact with drugs. Each result below shows which ingredient is responsible. Barley Grass
TriclabendazoleEgaten
How Triclabendazole interacts with Formula 103 — through 1 ingredient. Tap an ingredient for the detail:
Barley GrassTriclabendazole (egaten) Moderate
Interaction Summary
Theoretically, barley might decrease the clinical effects of triclabendazole.
Read the full Barley Grass + Triclabendazole interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Formula 103 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.
Barley Grass
Triclabendazole (Egaten)
Theoretically, barley might decrease the clinical effects of triclabendazole.
Animal research suggests that a diet supplemented with barley can reduce the bioavailability of triclabendazole when taken concomitantly. This effect has not been shown in humans.
Brand information
Manufacturer and brand details for Formula 103, from the product label.
DC
See all DC products- Name
- Dee Cee Laboratories, Inc.
- Street Address
- 304 Dee Cee Rd.
- City
- White House
- State
- TN
- ZipCode
- 37188
Formula 103 by DC: Common Questions
Does Formula 103 by DC interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does barley grass contain gluten?
What are the most common side effects?
Is it safe to use while pregnant?
Is it safe while breastfeeding?
What does barley grass actually do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Formula 103 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 Formula 103’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Formula 103'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 15 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.
Barley 15 references
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Fernandez-Anaya S, Crespo JF, Rodriguez JR, et al. Beer anaphylaxis. J Allergy Clin Immunol 1999;103:959-60.
- Lembo A, Camilleri M. Chronic constipation. N Engl J Med 2003;349:1360-8. . PubMed
- Ferre, I., Giraldez, F. J., Alvarez-Bujidos, M. L., and Mantecon, A. R. Influence of barley supplement on plasma concentration of triclabendazole metabolites in sheep. Vet.Rec. 11-22-1997;141(21):549-551. PubMed
- Curioni, A., Santucci, B., Cristaudo, A., Canistraci, C., Pietravalle, M., Simonato, B., and Giannattasio, M. Urticaria from beer: an immediate hypersensitivity reaction due to a 10- kDa protein derived from barley. Clin Exp Allergy 1999;29(3):407-413. PubMed
- Fernandez-Anaya, S., Crespo, J. F., Rodriguez, J. R., Daroca, P., Carmona, E., Herraez, L., and Lopez-Rubio, A. Beer anaphylaxis. J Allergy Clin Immunol. 1999;103(5 Pt 1):959-960.
- Cronin, E. Contact dermatitis from barley dust. Contact Dermatitis 1979;5(3):196. PubMed
- Block, G., Tse, K. S., Kijek, K., Chan, H., and Chan-Yeung, M. Baker's asthma. Studies of the cross-antigenicity between different cereal grains. Clin Allergy 1984;14(2):177-185.
- van Ketel, W. G. Immediate type allergy to malt in beer. Contact Dermatitis 1980;6(4):297-298. PubMed
- Ellis, H. J., Doyle, A. P., Day, P., Wieser, H., and Ciclitira, P. J. Demonstration of the presence of coeliac-activating gliadin-like epitopes in malted barley. Int Arch Allergy Immunol. 1994;104(3):308-310. PubMed
- Vidal, C. and Gonzalez-Quintela, A. Food-induced and occupational asthma due to barley flour. Ann Allergy Asthma Immunol. 1995;75(2):121-124.
- Gutgesell, C. and Fuchs, T. Contact urticaria from beer. Contact Dermatitis 1995;33(6):436-437. PubMed
- Baker, P. G. and Read, A. E. Oats and barley toxicity in coeliac patients. Postgrad.Med J 1976;52(607):264-268. PubMed
- Nakase, M., Usui, Y., Alvarez-Nakase, A. M., Adachi, T., Urisu, A., Nakamura, R., Aoki, N., Kitajima, K., and Matsuda, T. Cereal allergens: rice-seed allergens with structural similarity to wheat and barley allergens. Allergy 1998;53(46 Suppl):55-57. PubMed
- Pereira, F., Rafael, M., and Lacerda, M. H. Contact dermatitis from barley. Contact Dermatitis 1998;39(5):261-262. 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