Gastri-Gest Ingredients & Drug Interactions
by Priority One Nutritional Supplements
What is this page for?
First and foremost: checking Gastri-Gest 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
Gastri-Gest is a dietary supplement by Priority One Nutritional Supplements with 13 active ingredients. Its ingredients are commonly taken for high cholesterol, menopausal symptoms, athletic performance and muscle building.Based on those ingredients, 2,098 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Marshmallow (root) extract, Slippery Elm (bark) extract, Bifidobacterium bifidum. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Gastri-Gest by Priority One Nutritional Supplements
Ask about any prescription or over-the-counter medication and we check it for interactions with Gastri-Gest by Priority One Nutritional Supplements — 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 Gastri-Gest 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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
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 3 of its 13 active ingredients.
- “A Proprietary Blend” is a proprietary blend — the label gives one combined amount (630 mg) without saying how much of each component you get.
The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.
Why this rating?
- 5 of the 9 matched ingredients can interact with medications — Papain, Marshmallow, Lactobacillus Acidophilus, Slippery Elm, Bifidobacterium Bifidum.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; lithium.
- For scale: 2,099 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.
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 7 of the 9 matched ingredients.
- Pregnancy & breastfeeding safety ratings cover 9 of 9.
- General safety write-ups exist for 9 of 9.
- Remember: this measures how much safety information exists. Thin data is not the same as being safe.
HelloPharmacist summaryFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 9 of 13 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2020.
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 Gastri-Gest, straight from the product label.
| Brand | Priority One Nutritional Supplements |
|---|---|
| Barcode (UPC) | 815354020570 |
| Net contents | 120 Vegetarian Capsule(s) |
| Market status | Off market |
| Date entered into DSLD | Sep 25, 2020 |
| DSLD ID | 235737 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegetarian, 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 Gastri-Gest by Priority One Nutritional Supplements, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Gamma Oryzanol | 130 mg | -- |
| Papain | 0 NP | -- |
| Amylase | 0 NP | -- |
| Protease | 0 NP | -- |
| Lactase | 0 NP | -- |
| Cellulase | 0 NP | -- |
| A Proprietary Blend | 630 mg | -- |
| Sucrase | 0 NP | -- |
| Maltase | 0 NP | -- |
| Lipase | 0 NP | -- |
| Bifidobacterium bifidum | 0 NP | -- |
| Lactobacillus acidophilus | 0 NP | -- |
| Marshmallow (root) extract | 60 mg | -- |
| Slippery Elm (bark) extract | 60 mg | -- |
Other ingredients: Rice Chelate, Dicalcium Phosphate, Silicon Dioxide, Calcium Carbonate, Maltodextrin, Vegetarian Capsule
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.
Suggested/Recommended/Usage/Directions
Recommendations: Take two (2) capsules before meals, or as directed by your physician.
Storage
Keep container tightly closed, store in a cool, dry place.
Formulation
Contains no preservatives.
Vegetarian formulation
Non-GMO
General Statements
Bisphenol-A (BPA) & Phthalate Free
Priority One Nutritional Supplements Inc since 1988
For professional use only.
Seals/Symbols
GMP Certified
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.
Gastri-Gest 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 Gastri-Gest by Priority One Nutritional Supplements
These are the 13 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Vegetarian Capsules Dosage formCapsule Servings per container60 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.
Gamma Oryzanol
No knowninteractions
Gamma-oryzanol is a mix of plant compounds taken from rice bran oil, used mainly for cholesterol, menopause symptoms, and as a sports supplement. The...
Gamma Oryzanol monograph & interactionsA Proprietary Blend
- › Papain
- › Amylase
- › Protease
- › Lactase
- › Cellulase
- › Sucrase
- › Maltase
- › Lipase
- › Bifidobacterium bifidum
- › Lactobacillus acidophilus
Marshmallow (root) extract
Interacts with2,040 drugs
Marshmallow root is a traditional herb rich in soothing, gel-like fibers called mucilage, which is why it has long been used for coughs, sore throats,...
Marshmallow (root) extract monograph & interactionsSlippery Elm (bark) extract
Interacts with2,022 drugs
Slippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated di...
Slippery Elm (bark) extract monograph & interactionsOther (inactive) ingredients: Rice Chelate, Dicalcium Phosphate, Silicon Dioxide, Calcium Carbonate, Maltodextrin, Vegetarian Capsule. These complete the product’s ingredient list but are not active constituents.
Gastri-Gest by Priority One Nutritional Supplements Drug Interactions
Gastri-Gest contains 13 ingredients, and 5 of them have known drug interactions. Altogether they interact with 2,098 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Gastri-Gest?
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 Gastri-Gest interact with 2,098 drugs. Click any drug to see the details.
5 of the 13 ingredients in Gastri-Gest interact with drugs. Each result below shows which ingredient is responsible. Marshmallow (root) extract Slippery Elm (bark) extract Bifidobacterium bifidum Lactobacillus acidophilus Papain
"phentolamineOraVerse, Rogitine, Ryzumvi
How "phentolamine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + "phentolamine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + "phentolamine interaction6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + 6-mercaptopurine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + 6-mercaptopurine interactionAbacavirZiagen
How Abacavir interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abacavir interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abacavir interactionAbacavir Sulfate, Dolutegravir, LamivudineTriumeq
How Abacavir Sulfate, Dolutegravir, Lamivudine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abacavir Sulfate, Dolutegravir, Lamivudine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abacavir Sulfate, Dolutegravir, Lamivudine interactionAbacavir, LamivudineEpzicom
How Abacavir, Lamivudine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abacavir, Lamivudine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abacavir, Lamivudine interactionAbciximabReoPro
How Abciximab interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abciximab interactionMarshmallow (root) ExtractOral Drugs, Anticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abemaciclib interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abiraterone interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abiraterone Acetate interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Abrocitinib interactionMarshmallow (root) ExtractOral Drugs, Anticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acalabrutinib interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acalabrutinib interactionAcamprosateCampral
How Acamprosate interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acamprosate interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acamprosate interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acarbose interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acebutolol interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acenocoumarol interactionMarshmallow (root) ExtractAnticoagulant/antiplatelet Drugs, Oral Drugs Minor
Interaction Summary
Theoretically, marshmallow flower might have antiplatelet effects.
Read the full Marshmallow (root) Extract + Acenocoumarol interactionAcepromazineAtravet
How Acepromazine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acepromazine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acepromazine interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Aspirin interactionMarshmallow (root) ExtractOral Drugs, Anticoagulant/antiplatelet Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Aspirin, Caffeine interactionMarshmallow (root) ExtractAnticoagulant/antiplatelet Drugs, Oral Drugs Minor
Interaction Summary
Theoretically, marshmallow flower might have antiplatelet effects.
Read the full Marshmallow (root) Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Butalbital interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Butalbital, Caffeine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Butalbital, Codeine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Caffeine, Codeine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Gastri-Gest — through 2 ingredients. Tap an ingredient for the detail:
Slippery Elm (bark) ExtractOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Slippery Elm (bark) Extract + Acetaminophen, Caffeine, Isometheptene interactionMarshmallow (root) ExtractOral Drugs Minor
Interaction Summary
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Read the full Marshmallow (root) Extract + Acetaminophen, Caffeine, Isometheptene interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Gastri-Gest with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Marshmallow (root) extract
Lithium
Theoretically, due to potential diuretic effects, marshmallow might reduce excretion and increase levels of lithium.
Marshmallow is thought to have diuretic properties. To avoid lithium toxicity, the dose of lithium might need to be decreased when used with marshmallow.
Anticoagulant/Antiplatelet Drugs
Theoretically, marshmallow flower might have antiplatelet effects.
Animal research suggests that marshmallow flower extract has antiplatelet effects. However, the root and leaf of marshmallow, not the flower, are the plant parts most commonly found in dietary supplements. Theoretically, use of marshmallow flower with anticoagulant/antiplatelet drugs can have additive effects, and might increase the risk for bleeding in some patients.
Oral Drugs
Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Marshmallow contains mucilage which can affect oral drug absorption. To avoid changes in absorption, take marshmallow 30-60 minutes after oral medications.
Slippery Elm (bark) extract
Oral Drugs
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Slippery elm inner bark contains mucilage, which may interfere with the absorption of orally administered drugs.
Bifidobacterium bifidum
Antibiotic Drugs
Theoretically, taking Bifidobacterium. bifidum with antibiotic drugs might decrease the effectiveness of B. bifidum.
Since B. bifidum preparations usually contain live and active organisms, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. bifidum preparations by at least 2 hours.
Lactobacillus acidophilus
Antibiotic Drugs
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L. acidophilus.
L. acidophilus preparations usually contain live and active organisms. Therefore, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and L. acidophilus preparations by at least two hours.
Papain
Warfarin (Coumadin)
Theoretically, papain might increase the effects and side effects of warfarin.
In one case report, a patient previously stable on warfarin was found to have an international normalization ratio (INR) of 7.4, which was attributed to ingestion of a supplement containing papain from papaya extract.
Brand information
Manufacturer and brand details for Gastri-Gest, from the product label.
Priority One Nutritional Supplements
See all Priority One Nutritional Supplements products- Name
- Priority One Nutritional Supplements, Inc.
Gastri-Gest by Priority One Nutritional Supplements: Common Questions
Does Gastri-Gest 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
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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.
The Full Monographs Behind Gastri-Gest’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Gamma-oryzanol
Gamma-oryzanol is a mix of plant compounds taken from rice bran oil, used mainly for cholesterol, menopause symptoms, and as a sports supplement. The evidence is limited and mostly comes fro...
Read the full Gamma-oryzanol monograph → Herb & supplement monographPapain
Interacts with 2 drugsPapain is a protein-digesting enzyme from the papaya plant that is used in digestive supplements and some topical products. While it has clear food and laboratory uses, strong human evidence...
Read the full Papain monograph → Herb & supplement monographProteolytic 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 monographLactase
Lactase is a digestive enzyme supplement that helps people who lack enough natural lactase break down lactose, the sugar in milk and dairy. It can reduce gas, bloating, cramping, and diarrhe...
Read the full Lactase monograph → Herb & supplement monographLipase
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 monographBifidobacterium Bifidum
Interacts with 182 drugsBifidobacterium bifidum is a 'friendly' bacteria (probiotic) that naturally lives in the human gut and is taken to support digestion and gut balance. Some evidence suggests probiotics may he...
Read the full Bifidobacterium Bifidum monograph → Herb & supplement monographLactobacillus Acidophilus
Interacts with 182 drugsLactobacillus acidophilus is a 'friendly' bacterium used as a probiotic to support gut and vaginal health. It is generally well tolerated in healthy people, and there is reasonable evidence...
Read the full Lactobacillus Acidophilus monograph → Herb & supplement monographMarshmallow
Interacts with 2,040 drugsMarshmallow root is a traditional herb rich in soothing, gel-like fibers called mucilage, which is why it has long been used for coughs, sore throats, and stomach irritation. Evidence for th...
Read the full Marshmallow monograph → Herb & supplement monographSlippery Elm
Interacts with 2,022 drugsSlippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated digestive tracts. Its mucilage can coat an...
Read the full Slippery Elm monograph →Sources & How We Checked
Gastri-Gest'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 46 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.
Papain 11 references
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Shaw D, Leon C, Kolev S, Murray V. Traditional remedies and food supplements: a 5-year toxicological study (1991-1995). Drug Saf 1997;17:342-56.
- Shuttleworth D, Hill S, Marks R, Connelly DM. Relief of experimentally induced pruritus with a novel eutectic mixture of local anaesthetic agents. Br J Dermatol 1988;119:535-40.
- Mansfield LE, Ting S, Haverly RW, Yoo TJ. The incidence and clinical implications of hypersensitivity to papain in an allergic population, confirmed by blinded oral challenge. Ann Allergy 1985;55:541-3.
- 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
- Walker-Renard, P. Update on the medicinal management of phytobezoars. Am J Gastroenterol. 1993;88(10):1663-1666.
- Tymoszuk D, Wiszniewska M, Walusiak-Skorupa J. Papain-induced occupational rhinoconjunctivitis and asthma - A case report. Med Pr 2016;67(1):109-12. PubMed
- Soto-Mera MT, López-Rico MR, Filgueira JF, et al. Occupational allergy to papain. Allergy 2000;55(10):983-4. PubMed
- Tarlo SM, Shaikh W, Bell B, et al. Papain-induced allergic reactions. Clin Allergy 1978;8(3):207-15. PubMed
- Baur X, König G, Bencze K, Fruhmann G. Clinical symptoms and results of skin test, RAST and bronchial provocation test in thirty-three papain workers: Evidence for strong immunogenic potency and clinically relevant proteolytic e?ects of airborne papain. C
- Novey HS, Keenan WJ, Fairshter RD, Wells ID, Wilson AF, Culver BD. Pulmonary disease in workers exposed to papain: clinico-physiological and immunological studies. Clin Allergy 1980;10(6):721-31. PubMed
Proteolytic Enzymes (proteases) 3 references
- 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
- Marquès LI, Lara S, Abós T, Bartolomé B. Occupational rhinitis due to pepsin. J Investig Allergol Clin Immunol. 2006;16(2):136-7. DOI
- 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 →
Lactase 1 reference
- Laukkanen A, Ruoppi P, Remes S, Koistinen T, Mäkinen-Kiljunen S. Lactase-induced occupational protein contact dermatitis and allergic rhinoconjunctivitis. Contact Dermatitis. 2007;57(2):89-93. PubMed
Lipase 1 reference
- 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
Bifidobacterium Bifidum 7 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Xiao JZ, Takahashi S, Odamaki T, et al. Antibiotic susceptibility of bifidobacterial strains distributed in the Japanese market. Biosci Biotechnol Biochem. 2010;74(2):336-42. PubMed
- Rerksuppaphol S, Rerksuppaphol L. Randomized controlled trial of probiotics to reduce common cold in schoolchildren. Pediatr Int. 2012;54(5):682-7. PubMed
- Karamali M, Dadkhah F, Sadrkhanlou M, et al. Effects of probiotic supplementation on glycaemic control and lipid profiles in gestational diabetes: a randomized, double-blind, placebo-controlled trial. Diabetes Metab 2016;42(4):234-41. PubMed
- Badehnoosh B, Karamali M, Zarrati M, et al. The effects of probiotic supplementation on biomarkers of inflammation, oxidative stress and pregnancy outcomes in gestational diabetes. J Matern Fetal Neonatal Med. 2018 May;31(9):1128-1136.
- Pruccoli G, Silvestro E, Pace Napoleone C, Aidala E, Garazzino S, Scolfaro C. Are probiotics safe? Bifidobacterium bacteremia in a child with severe heart failure. Infez Med. 2019;27(2):175-178.
- Esaiassen E, Hjerde E, Cavanagh JP, Simonsen GS, Klingenberg C; Norwegian Study Group on Invasive Bifidobacterial Infections. Bifidobacterium bacteremia: Clinical characteristics and a genomic approach to assess pathogenicity. J Clin Microbiol. 2017;55(7) PubMed
See these in context on the Bifidobacterium Bifidum monograph →
Lactobacillus Acidophilus 15 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Begtrup LM, de Muckadell OB, Kjeldsen J, Christensen RD, Jarbøl DE. Long-term treatment with probiotics in primary care patients with irritable bowel syndrome--a randomised, double-blind, placebo controlled trial. Scand J Gastroenterol 2013;48(10):1127-35 PubMed
- Chatterjee S, Kar P, Das T, Ray S, Gangulyt S, Rajendiran C, Mitra M. Randomised placebo-controlled double blind multicentric trial on efficacy and safety of Lactobacillus acidophilus LA-5 and Bifidobacterium BB-12 for prevention of antibiotic-associated
- Shavakhi A, Tabesh E, Yaghoutkar A, Hashemi H, Tabesh F, Khodadoostan M,Minakari M, Shavakhi S, Gholamrezaei A. The effects of multistrain probiotic compound on bismuth-containing quadruple therapy for Helicobacter pylori infection: a randomized placebo-c
- Karamali M, Dadkhah F, Sadrkhanlou M, et al. Effects of probiotic supplementation on glycaemic control and lipid profiles in gestational diabetes: a randomized, double-blind, placebo-controlled trial. Diabetes Metab 2016;42(4):234-41. PubMed
- Badehnoosh B, Karamali M, Zarrati M, et al. The effects of probiotic supplementation on biomarkers of inflammation, oxidative stress and pregnancy outcomes in gestational diabetes. J Matern Fetal Neonatal Med. 2018 May;31(9):1128-1136.
- Kumar S, Kumar R, Rohilla L, Jacob N, Yadav J, Sachdeva N. A high potency multi-strain probiotic improves glycemic control in children with new-onset type 1 diabetes mellitus: A randomized, double-blind, and placebo-controlled pilot study. Pediatr Diabete
- Shahriari A, Karimi E, Shahriari M, Aslani N, Khooshideh M, Arab A. The effect of probiotic supplementation on the risk of gestational diabetes mellitus among high-risk pregnant women: A parallel double-blind, randomized, placebo-controlled clinical trial PubMed
- Xiao SD, Zhang DZ, Lu H, et al. Multicenter, randomized, controlled trial of heat-killed Lactobacillus acidophilus LB in patients with chronic diarrhea. Adv Ther. 2003;20(5):253-60.
- Rossi F, Amadoro C, Gasperi M, Colavita G. Lactobacilli infection case reports in the last three years and safety implications. Nutrients. 2022;14(6):1178. PubMed
- Ozer M, Goksu SY, Shahverdiani A, Mustafa M. Lactobacillus acidophilus-induced endocarditis and associated splenic abscess. Case Rep Infect Dis 2020;2020:1382709.
- Sadrin S, Sennoune S, Gout B, et al. A 2-strain mixture of Lactobacillus acidophilus in the treatment of irritable bowel syndrome: A placebo-controlled randomized clinical trial. Dig Liver Dis 2020;52(5):534-540. PubMed
- Stoffer JN, Slingsby TJ, Giuliari GP. Lactobacillus acidophilus endophthalmitis after intravitreal bevacizumab injection requiring intraocular lens explantation. Can J Ophthalmol 2022;57(1):e21-e22. PubMed
- Cukovic-Cavka S, Likic R, Francetic I, Rustemovic N, Opacic M, Vucelic B. Lactobacillus acidophilus as a cause of liver abscess in a NOD2/CARD15-positive patient with Crohn's disease. Digestion 2006;73(2-3):107-10.
- Hui J, Ren Y, Wang Y, Han Q. Lactobacillus acidophilus endophthalmitis postcataract operation: A case report with a literature review. Ocul Immunol Inflamm 2023.
See these in context on the Lactobacillus Acidophilus monograph →
Marshmallow 5 references
- Monographs on the medicinal uses of plant drugs. Exeter, UK: European Scientific Co-op Phytother, 1997.
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Hage-Sleiman R, Mroueh M, Daher CF. Pharmacological evaluation of aqueous extract of Althaea officinalis flower grown in Lebanon. Pharm Biol 2011;49(3):327-33.
Slippery Elm 3 references
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Czarnecki D, Nixon R, Bekhor P, and et al. Delayed prolonged contact urticaria from the elm tree. Contact Dermatitis 1993;28:196-197. 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