Interactions on record — worth a quick check against your medications. Based on 4 of 6 ingredients. Check your meds →
Dietary supplement

GV-14 Ingredients & Drug Interactions

by Loomis Enzymes

GV-14 label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking GV-14 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

GV-14 is a dietary supplement by Loomis Enzymes with 6 active ingredients. Its ingredients are commonly taken for digestion and bloating, muscle soreness and exercise recovery, inflammation and swelling.Based on those ingredients, 289 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Nattokinase. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against GV-14 by Loomis Enzymes

Ask about any prescription or over-the-counter medication and we check it for interactions with GV-14 by Loomis Enzymes — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of GV-14 by Loomis Enzymes

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 Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 6 active ingredients.
  • “Proprietary Enzyme Blend” is a proprietary blend — the label gives one combined amount (412 mg) without saying how much of each component you get.

GV-14 is a 6-ingredient enzyme formula. The active ingredients are amylase (breaks down carbs), protease (breaks down protein), serratiopeptidase, lipase (breaks down fats), nattokinase, and microbial trypsin — all intended to support digestive function.

The product also contains inactive ingredients like cellulose and calcium lactate as binders and capsule material.

Does it work?

Couldn't assess
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
Not assessable

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: pH balancing system.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence backing these enzymes is thin. For lipase and trypsin, studies haven't established reliable proof they work for conditions like inflammatory bowel disease, indigestion, sprains, or arthritis — the data we hold rates all of these as insufficient.

For nattokinase, the same applies: we don't have established evidence it helps with angina, atherosclerosis, or cardiovascular disease. If you're considering this product for a specific health goal, ask your pharmacist what the current research actually shows.

The evidence, ingredient by ingredient Proteolytic Enzymes (proteases) Lipase Nattokinase Trypsin

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 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Protease, lipase, and trypsin are generally well tolerated in adults, though some people report mild digestive upset like nausea, heartburn, or stomach pain — it's unclear which enzyme causes it. Rarely, people sensitive to protease (sometimes found in laundry products) have had allergic reactions or breathing trouble.

Nattokinase carries a caution for bleeding risk and is not recommended in pregnancy or breastfeeding. For lipase and trypsin: there's not enough safety data in pregnancy or while breastfeeding, so talk to your doctor first.

We have no pregnancy or breastfeeding safety data on file for amylase or serratiopeptidase.

Side effects, ingredient by ingredient Proteolytic Enzymes (proteases) Lipase Nattokinase Trypsin

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 4 matched ingredients can interact with medications — Nattokinase.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 289 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.

Before taking GV-14, double-check if you're on blood thinners or antiplatelet drugs (like warfarin, dabigatran, or aspirin) — nattokinase may increase bleeding risk, and there's a case report of serious brain bleeding when combined with aspirin. Also flag if you take blood pressure medication, since nattokinase might lower your pressure further.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

GV-14 is a digestive enzyme blend, but evidence it actually works is limited. The big concern is nattokinase and bleeding risk, especially if you take blood thinners or aspirin.

If you're on any medications — especially for blood clotting or blood pressure — check with your pharmacist before starting. Pregnant or breastfeeding?

Talk to your doctor first.

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

Assessment coverage: 4 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 24, 2025.

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 GV-14, straight from the product label.

Brand Loomis Enzymes
Barcode (UPC) 697706050400
Net contents 180 Capsule(s)
Market status On market
Date entered into DSLD Apr 24, 2025
DSLD ID 327431
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 GV-14 by Loomis Enzymes, 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
90
UPC/BARCODE
697706050400
IngredientAmount% DV
Amylase0 NP--
Protease0 NP--
Serratiopeptidase0 NP--
Lipase0 NP--
Nattokinase0 NP--
Proprietary Enzyme Blend412 mg--
Microbial Trypsin0 NP--

Other ingredients: Cellulose, Water, Calcium Lactate, Phytase

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.
Formulation

pHBS pH balancing system

FDA Disclaimer Statement

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

Precautions

Keep out of reach of children.

Note: Consult your physician before using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Do not use if inner or outer seal is broken, torn, or missing.

Storage

To ensure freshness and potency, keep bottle tightly closed and store in a cool, dry place.

FDA Statement of Identity

A Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions for use: Take 2 capsules, 2 times daily at any time, or as directed.

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

See for yourself

GV-14 by Loomis Enzymes label

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

GV-14 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 GV-14 by Loomis Enzymes

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Enzyme Blend

412 mg per serving

Other (inactive) ingredients: Cellulose, Water, Calcium Lactate, Phytase. These complete the product’s ingredient list but are not active constituents.

Interaction report

GV-14 by Loomis Enzymes Drug Interactions

Want to check YOUR meds against GV-14?

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
289Drugs
289 Moderate

Ingredients driving the most interactions

Nattokinase 289

Individual Drug Interactions

The ingredients in GV-14 interact with 289 drugs. Click any drug to see the details.

1 of the 6 ingredients in GV-14 interact with drugs. Each result below shows which ingredient is responsible. Nattokinase

Each ingredient & the kinds of drugs it affects

For each ingredient in GV-14 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.

Nattokinase2 drug types · 289 drugs

Anticoagulant/Antiplatelet Drugs

Nattokinase might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.
Nattokinase has thrombolytic and anticoagulant effects. There is a case report of intracranial hemorrhage in a patient who added nattokinase to aspirin therapy.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, nattokinase might increase the risk of hypotension when used with antihypertensive drugs.
Some clinical research suggests that nattokinase may reduce systolic and diastolic blood pressure.

Likelihood Possible Evidence D
Nattokinase full monograph & interactions
The maker

Brand information

Manufacturer and brand details for GV-14, from the product label.

Loomis Enzymes

See all Loomis Enzymes products
Name
Loomis Enzymes, LLC
City
Fitchburg
State
Wisconsin
ZipCode
53719
Phone Number
1-800-614-4400
Web Address
www.loomisenzymes.com
Pharmacist Counseling Corner

GV-14 by Loomis Enzymes: Common Questions

Does GV-14 by Loomis Enzymes interact with any medications?
Yes. Based on its ingredients, GV-14 has a known interaction with 289 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
GV-14 contains 6 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 GV-14 help with my indigestion or bloating?
The evidence we hold doesn't establish that lipase or these other enzymes reliably help indigestion. That doesn't mean they won't work for you, but the clinical picture is unclear — talk to your pharmacist about what's actually proven.
Can I take this if I'm on aspirin?
Not without checking first. Nattokinase in this product may increase your bleeding risk, and there's a documented case of serious brain bleeding when someone combined nattokinase with aspirin. Your pharmacist can tell you if it's safe for your situation.
What are the side effects?
Most people tolerate it fine. Mild ones include nausea, heartburn, or stomach pain — though it's not always clear which ingredient causes them. Rarely, people sensitive to protease (found in some laundry detergents) can have allergic reactions like breathing trouble.
Is it safe to take while pregnant?
No. Nattokinase should be avoided in pregnancy. For protease, lipase, and trypsin, there isn't enough safety data — so talk to your doctor before using this product if you're pregnant or planning to be.
What does nattokinase actually do?
Nattokinase is an enzyme from fermented soy that has blood-thinning and clot-breaking properties — which is why it can interact with blood thinners and why it carries a bleeding risk. We don't have established evidence it prevents or treats heart disease.
Can I take this while breastfeeding?
Safety data is limited for all the enzymes in here. Protease and trypsin aren't recommended without medical advice, nattokinase should be avoided, and we don't have enough information on the others. Check with your healthcare provider first.

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

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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.

GV-14 label
Go deeper

The Full Monographs Behind GV-14’s Ingredients

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

Herb & supplement monograph

Proteolytic Enzymes (proteases)

Proteolytic enzymes are proteins that help break down other proteins, and common examples include bromelain (from pineapple), papain (from papaya), trypsin, chymotrypsin, and pancreatin. Peo...

Read the full Proteolytic Enzymes (proteases) monograph → Herb & supplement monograph

Lipase

Lipase is a digestive enzyme that helps your body break down dietary fats. It is well established as part of prescription pancreatic enzyme therapy for people who cannot make enough of their...

Read the full Lipase monograph → Herb & supplement monograph

Nattokinase

Interacts with 289 drugs

Nattokinase is an enzyme from the fermented soybean food natto that may have mild blood-thinning and blood-flow effects. Some small studies hint at benefits for blood pressure and circulatio...

Read the full Nattokinase monograph → Herb & supplement monograph

Trypsin

Trypsin is a protein-digesting enzyme usually taken from the pancreas of animals and used either by mouth (often combined with other enzymes like chymotrypsin and bromelain) for swelling and...

Read the full Trypsin monograph →
Sources

Sources & How We Checked

GV-14'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 30 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.

Proteolytic Enzymes (proteases) 3 references
  1. Weeks JA, Harper RA, Simon RA, Burdick JD. Assessment of sensitization risk of a laundry pre-spotter containing protease. Cutan Ocul Toxicol. 2011;30(4):272-9. PubMed
  2. Marquès LI, Lara S, Abós T, Bartolomé B. Occupational rhinitis due to pepsin. J Investig Allergol Clin Immunol. 2006;16(2):136-7. DOI
  3. Cartier A, Malo JL, Pineau L, Dolovich J. Occupational asthma due to pepsin. J Allergy Clin Immunol. 1984;73(5 Pt 1):574-7. PubMed

See these in context on the Proteolytic Enzymes (proteases) monograph →

Lipase 1 reference
  1. Casper C, Hascoet JM, Ertl T, et al. Recombinant bile salt-stimulated lipase in preterm infant feeding: A randomized phase 3 study. PLoS One. 2016;11(5):e0156071. PubMed

See these in context on the Lipase monograph →

Nattokinase 9 references
  1. Suzuki Y, Kondo K, Matsumoto Y, et al. Dietary supplementation of fermented soybean, natto, suppresses intimal thickening and modulates the lysis of mural thrombi after endothelial injury in rat femoral artery. Life Sci 2003;73:1289-98.. PubMed
  2. Sumi H, Hamada H, Nakanishi K, Hiratani H. Enchancement of fibrinolytic activity in plasma by oral administration of nattokinase. Acta Haematol 1990;84:139-43.
  3. Chang, Y. Y., Liu, J. S., Lai, S. L., Wu, H. S., and Lan, M. Y. Cerebellar hemorrhage provoked by combined use of nattokinase and aspirin in a patient with cerebral microbleeds. Intern Med 2008;47(5):467-469. PubMed
  4. Kim, J. Y., Gum, S. N., Paik, J. K., Lim, H. H., Kim, K. C., Ogasawara, K., Inoue, K., Park, S., Jang, Y., and Lee, J. H. Effects of nattokinase on blood pressure: a randomized, controlled trial. Hypertens.Res 2008;31(8):1583-1588. PubMed
  5. <p>Maruyama M, Sumi H (eds): Effect of natto diet on blood pressure, in Basic and Clinical Aspects of Japanese Traditional Food Natto II. Japan Technology Transfer Association (JTTAS), 1998, pp 1–3.</p>
  6. Kurosawa Y, Nirengi S, Homma T, et al. A single-dose of oral nattokinase potentiates thrombolysis and anti-coagulation profiles. Sci Rep 2015;5:11601. PubMed
  7. Ramachandran L, Aqeel A, Jafri A, Sidhu Y, Mohamed Djirdeh T. Nattokinase-associated hemoperitoneum in an elderly woman. Cureus 2021;13(12):e20074. PubMed
  8. Awatani-Yoshidome K, Hashimoto T, Satoh T. Anaphylaxis from nattokinase in a patient with fermented soybean (natto) allergy. Allergol Int 2022;71(1):153-4. PubMed
  9. Suzuki K, Nakamura M, Sato N, Futamura K, Matsunaga K, Yagami A. Nattokinase, a subtilisin family serine protease, is a novel allergen contained in the traditional Japanese fermented food natto. Allergol Int 2022.

See these in context on the Nattokinase monograph →

Trypsin 17 references
  1. Burnham TH, ed. Drug Facts and Comparisons, Updated Monthly. Facts and Comparisons, St. Louis, MO.
  2. Latha B, Ramakrishnan M, Jayaraman V, Babu M. The efficacy of trypsin: chymotrypsin preparation in the reduction of oxidative damage during burn injury. Burns 1998;24:532-8. PubMed
  3. Latha B, Ramakrishnan M, Jayaraman V, Babu M. Serum enzymatic changes modulated using trypsin: chymotrypsin preparation during burn wounds in humans. Burns 1997;23:560-4. PubMed
  4. Klein, G., Kullich, W., Schnitker, J., and Schwann, H. Efficacy and tolerance of an oral enzyme combination in painful osteoarthritis of the hip. A double-blind, randomised study comparing oral enzymes with non-steroidal anti-inflammatory drugs. Clin Exp
  5. Dale, P. S., Tamhankar, C. P., George, D., and Daftary, G. V. Co-medication with hydrolytic enzymes in radiation therapy of uterine cervix: evidence of the reduction of acute side effects. Cancer Chemother.Pharmacol 2001;47 Suppl:S29-S34. PubMed
  6. Martin, T., Uhder, K., Kurek, R., Roeddiger, S., Schneider, L., Vogt, H. G., Heyd, R., and Zamboglou, N. Does prophylactic treatment with proteolytic enzymes reduce acute toxicity of adjuvant pelvic irradiation? Results of a double-blind randomized trial PubMed
  7. Miller, P. C., Bailey, S. P., Barnes, M. E., Derr, S. J., and Hall, E. E. The effects of protease supplementation on skeletal muscle function and DOMS following downhill running. J Sports Sci 2004;22(4):365-372. PubMed
  8. Bolten WW, Glade MJ, Raum S, Ritz BW. The safety and efficacy of an enzyme combination in managing knee osteoarthritis pain in adults: a randomized, double-blind, placebo-controlled trial. Arthritis 2015;2015:251521. PubMed
  9. US Department of Justice. U.S. Files Complaint Against Texas-Based Healthpoint Ltd. Under the False Claims Act. https://www.justice.gov/opa/pr/us-files-complaint-against-texas-based-healthpoint-ltd-under-false-claims-act. (Accessed June 19, 2019).
  10. Grabs V, Kersten A, Haller B, et al. Rutoside and hydrolytic enzymes do not attenuate marathon-induced inflammation. Med Sci Sports Exerc. 2017;49(3):387-395. PubMed
  11. Baumhackl U, Kappos L, Radue EW, et al. A randomized, double-blind, placebo-controlled study of oral hydrolytic enzymes in relapsing multiple sclerosis. Mult Scler. 2005;11(2):166-8. PubMed
  12. Gujral MS, Patnaik PM, Kaul R, et al. Efficacy of hydrolytic enzymes in preventing radiation therapy-induced side effects in patients with head and neck cancers. Cancer Chemother Pharmacol. 2001;47 Suppl:S23-8. PubMed
  13. Kempf K, Manzo G, Hanifi-Moghaddam P, et al. Effect of combined oral proteases and flavonoid treatment in subjects at risk of Type 1 diabetes. Diabet Med. 2009;26(12):1309-10. PubMed
  14. Kerkhoffs GM, Struijs PA, de Wit C, Rahlfs VW, Zwipp H, van Dijk CN. A double blind, randomised, parallel group study on the efficacy and safety of treating acute lateral ankle sprain with oral hydrolytic enzymes. Br J Sports Med. 2004;38(4):431-5. PubMed
  15. Popiela T, Kulig J, Klek S, Wachol D, Bock PR, Hanisch J. Double-blind pilot-study on the efficacy of enzyme therapy in advanced colorectal cancer. Przegl Lek. 2000;57 Suppl 5:142.
  16. Shetty V, Mohan A. A prospective, randomized, double-blind, placebo-controlled clinical trial comparing the efficacy of systemic enzyme therapy for edema control in orthognathic surgery using ultrasound scan to measure facial swelling. J Oral Maxillofac S PubMed
  17. Comparison of Chronic Wound Care Products. Pharmacist's Letter/Prescriber's Letter 2008;12(3):1203.

See these in context on the Trypsin 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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