Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Peak Colon Support Ingredients & Drug Interactions

by Peak Pure & Natural

Peak Colon Support label
See full label image
Capsule Category: Botanical With Nutrients
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Peak Colon Support 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: Major

Peak Colon Support is a dietary supplement by Peak Pure & Natural with 7 active ingredients. Its ingredients are commonly taken for preventing or treating low potassium (hypokalemia), supporting healthy blood pressure, muscle cramps.Based on those ingredients, 2,128 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Slippery Elm, Cascara Bark Extract, Aloe Vera Gel Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Peak Colon Support by Peak Pure & Natural

Ask about any prescription or over-the-counter medication and we check it for interactions with Peak Colon Support by Peak Pure & Natural — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Peak Colon Support by Peak Pure & Natural

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

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 7 of its 7 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Peak Colon Support contains 7 active ingredients designed to support digestive health. Potassium is an electrolyte that plays a role in nerve and muscle function.

Aloe vera gel extract and senna leaf extract are both plant-based laxatives meant to promote bowel regularity. Inulin is a soluble fiber that feeds beneficial gut bacteria and may help with digestion.

Black walnut, slippery elm, and cascara bark extract round out the formula with additional traditional digestive support ingredients.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Colon support and digestive regularity.
  • We looked for evidence on: Constipation, Bowel preparation, Diarrhea, Irritable bowel syndrome (IBS), Inflammatory bowel disease (IBD), Antibiotic-associated diarrhea — and 4 related terms.
  • The strongest evidence on file: Senna is rated "Likely Effective" for Constipation (Natural Medicines).
  • Also on file: Aloe is rated "Possibly Effective" for Constipation.
  • Also on file: Senna is rated "Possibly Effective" for Bowel preparation.

The evidence for these ingredients is mixed. Aloe vera is possibly effective for constipation, diabetes, and a few other conditions based on available research.

Senna leaf extract is likely effective for constipation and possibly effective for bowel preparation. Inulin is possibly effective for constipation, diabetes, and obesity.

Black walnut's effectiveness for any condition is not established in our data—evidence is insufficient. Slippery elm and cascara bark extract both lack solid evidence for their listed uses; the data we hold shows insufficient evidence for conditions like constipation and cough.

The evidence, ingredient by ingredient Potassium Aloe Inulin Black Walnut Senna Slippery Elm Cascara Sagrada

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 7 of the 7 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 7 of 7.
  • General safety write-ups exist for 7 of 7.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Most of these ingredients are generally well tolerated at typical doses, but there are important cautions. The potassium in this product can reach dangerously high levels in your blood—especially if you have kidney disease or take certain medications—so it's not meant for long-term unsupervised use.

Aloe latex (the inner leaf substance, which differs from gel) can cause serious side effects with overuse, including severe potassium loss, heart rhythm problems, and muscle weakness. Senna and cascara are stimulant laxatives safe for short-term occasional use only; long-term daily use can lead to fluid and electrolyte loss, muscle weakness, and other complications.

Common side effects across the laxative ingredients include abdominal cramps, diarrhea, nausea, and flatulence. Inulin often causes bloating and gas, especially at higher doses.

Black walnut contains tannins that may cause stomach upset, and tree nuts are a major food allergen.

Side effects, ingredient by ingredient Potassium Aloe Inulin Black Walnut Senna Slippery Elm Cascara Sagrada

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 6 of the 7 matched ingredients can interact with medications — Aloe, Senna, Cascara Sagrada, Potassium, Slippery Elm, among others.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; heart-rhythm medications.
  • For scale: 2,129 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your exact medications against this product if you take digoxin (a heart medication), blood thinners including warfarin, blood pressure drugs (especially ACE inhibitors, ARBs, or potassium-sparing diuretics), diabetes medications, diuretics, estrogen-based birth control or hormone therapy, corticosteroids, or any oral medications you want absorbed fully. If you're on any regular prescription, use the search tool on this page.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This is a colon-support product built mainly on potassium and plant laxatives. It may help with occasional constipation, but it's not for daily long-term use without a doctor's guidance.

If you take blood pressure medication, heart medication, blood thinners, or diabetes drugs—or if you have kidney disease—check with your pharmacist before starting it. Talk to your doctor or pharmacist about whether this product fits your health situation.

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

Assessment coverage: 7 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 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 Peak Colon Support, straight from the product label.

Brand Peak Pure & Natural
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2025
DSLD ID 333606
Product type Botanical With Nutrients
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten Free
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 Peak Colon Support by Peak Pure & Natural, 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:
1 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
30
IngredientAmount% DV
Potassium99 mg3%
Aloe Vera Gel Extract40 mg--
Inulin75 mg--
Black Walnut50 mg--
Senna Leaf Extract85 mg--
Slippery Elm200 mg--
Cascara Bark Extract50 mg--

Other ingredients: Vegetable Capsule, Nu-Rice, Nu-Flow, Silica

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.
Precautions

Contains: Tree nuts (walnuts)

Warnings: Keep out of reach of children.

Do not exceed recommended dose. Do not use if clear neck seal is broken or missing. Do not use if you have or develop diarrhea, rectal bleeding, nausea, vomiting or abdominal pain as product may worsen these problems. Long-term use of cascara sagrada and senna in this product may increase dependency. Consult your physician if your constipation is more than occasional, you are pregnant, nursing, taking medication or have a medical condition.

Consult your physician if your constipation is more than occasional, you are pregnant, nursing, taking medication or have a medical condition.

Brand IP Statement(s)

Ribus, Inc. is the owner of the registered trademarks Nu-Flow and Nu-Rice.

Suggested/Recommended/Usage/Directions

Suggested use: Adults take one (1) or two (2) capsules daily as needed with water, preferably with a meal, as a dietary supplement, or as directed by your healthcare practitioner.

Storage

Store at room temperature, in a dry place.

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.

Formulation

Supports healthy bowel function

Clean label

V

Non GMO Gluten free

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

V Manufactured in U.S.A. with quality ingredients from around the world

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

See for yourself

Peak Colon Support by Peak Pure & Natural label

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

Peak Colon Support 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 Peak Colon Support by Peak Pure & Natural

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container30 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.

Potassium

Interacts with
62 drugs
99 mg per serving Form: Potassium Citrate

Potassium is an essential mineral your body needs for nerve signals, muscle function, and a steady heartbeat, and most people get enough from a balanc...

Potassium monograph & interactions

Aloe Vera Gel Extract

Interacts with
461 drugs
40 mg per serving Form: Aloe barbadensis Gel Extract

Aloe vera gel is widely used on the skin for minor burns and irritation, and some research suggests it may help. Aloe latex (the yellow part) is a str...

Aloe Vera Gel Extract monograph & interactions

Inulin

Interacts with
86 drugs
75 mg per serving Form: Fructooligosaccharides

Inulin is a type of plant fiber (a prebiotic) found naturally in foods like chicory root, onions, and garlic, and it is widely added to supplements an...

Inulin monograph & interactions

Black Walnut

No known
interactions
50 mg per serving

Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these us...

Black Walnut monograph & interactions

Senna Leaf Extract

Interacts with
140 drugs
85 mg per serving

Senna is a plant-based stimulant laxative that is widely used and generally effective for short-term relief of constipation. It is best used occasiona...

Senna Leaf Extract monograph & interactions

Slippery Elm

Interacts with
2,022 drugs
200 mg per serving Form: Ulmus rubra

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 monograph & interactions

Cascara Bark Extract

Interacts with
745 drugs
50 mg per serving Form: Cascara sagrada Bark Extract

Cascara sagrada is a stimulant laxative made from the aged bark of a Pacific Northwest tree, used mainly for short-term relief of constipation. Becaus...

Cascara Bark Extract monograph & interactions

Other (inactive) ingredients: Vegetable Capsule, Nu-Rice, Nu-Flow, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Peak Colon Support by Peak Pure & Natural Drug Interactions

Want to check YOUR meds against Peak Colon Support?

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
2,128Drugs
1 Major 2,076 Moderate 51 Minor

Ingredients driving the most interactions

Slippery Elm 2,022
Cascara Bark Extract 745
Aloe Vera Gel Extract 461
Senna Leaf Extract 140
Inulin 86

Individual Drug Interactions

The ingredients in Peak Colon Support interact with 2,128 drugs. Click any drug to see the details.

6 of the 7 ingredients in Peak Colon Support interact with drugs. Each result below shows which ingredient is responsible. Slippery Elm Cascara Bark Extract Aloe Vera Gel Extract Senna Leaf Extract Inulin Potassium

Each ingredient & the kinds of drugs it affects

For each ingredient in Peak Colon Support 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.

Slippery Elm1 drug type · 2,022 drugs

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.

Likelihood Possible Evidence D
Slippery Elm full monograph & interactions

Cascara Bark Extract6 drug types · 745 drugs

Corticosteroids

Theoretically, cascara sagrada might increase the risk of hypokalemia when taken with corticosteroids.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, cascara sagrada might cause hypokalemia, potentially increasing the risk of digoxin toxicity.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, cascara sagrada might increase the risk of hypokalemia when taken with diuretic drugs.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Stimulant Laxatives

Theoretically, cascara sagrada might have additive adverse effects when taken with stimulant laxatives.
Cascara sagrada has stimulant laxative effects and might compound fluid and electrolyte losses when taken with stimulant laxatives.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, cascara sagrada might increase the risk of bleeding when taken with warfarin.
Cascara sagrada has stimulant laxative effects. In some people, cascara sagrada can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, cascara sagrada might decrease the effects of CYP3A4 substrates.
In vitro research suggests that cascara sagrada can induce CYP3A4 enzymes, albeit to a much lower degree than rifampin, a known CYP3A4 inducer.

Likelihood Possible Evidence D
Cascara Bark Extract full monograph & interactions

Aloe Vera Gel Extract7 drug types · 461 drugs

Digoxin (Lanoxin)

Theoretically, aloe latex might increase the risk of adverse effects when taken with cardiac glycosides.
Overuse of aloe latex can increase the risk of adverse effects from cardiac glycoside drugs, such as digoxin, due to potassium depletion. Overuse of aloe, along with cardiac glycoside drugs, can increase the risk of toxicity.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, aloe gel might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aloe gel can inhibit platelet aggregation. This inhibition was greater than that seen with celecoxib, but less than that seen with aspirin.

Likelihood Possible Evidence D
Antidiabetes Drugs

Aloe might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Preliminary clinical research suggests aloe gel might lower blood glucose levels and have additive effects when used with antidiabetes drugs. Monitor blood glucose levels closely.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, aloe latex might increase the risk of hypokalemia when taken with diuretic drugs.
Overuse of aloe latex might compound diuretic-induced potassium loss, increasing the risk of hypokalemia.

Likelihood Possible Evidence D
Stimulant Laxatives

Theoretically, aloe latex might increase the risk for fluid and electrolyte loss when taken with stimulant laxatives.
Due to cathartic laxative effects of aloe latex, concomitant use with other stimulant laxatives might compound fluid and electrolyte loss.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, aloe latex might increase the risk of bleeding when taken with warfarin.
Aloe latex has stimulant laxative effects. In some people aloe latex can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding. Advise patients who take warfarin not to take excessive amounts of aloe vera.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, aloe might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that aloe extract induces CYP1A2 enzymes.

Likelihood Possible Evidence D
Aloe Vera Gel Extract full monograph & interactions

Senna Leaf Extract5 drug types · 140 drugs

Digoxin (Lanoxin)

Theoretically, senna might increase the risk of adverse effects when taken with digoxin.
Overuse/abuse of senna increases the risk of adverse effects from cardiac glycosides, such as digoxin, due to potassium depletion.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, senna might increase the risk of hypokalemia when taken with diuretic drugs.
Overuse of senna might compound diuretic-induced potassium loss and increase the risk for hypokalemia.

Likelihood Possible Evidence D
Estrogens

Theoretically, taking senna may interfere with the absorption of exogenous estrogens.
Some preliminary clinical evidence suggests that senna reduces the absorption of estradiol and decreases serum concentrations of estrone and estrone sulfate by decreasing intestinal transit time.

Likelihood Possible Evidence B
Stimulant Laxatives

Theoretically, senna might increase the risk for fluid and electrolyte loss when taken with other stimulant laxatives.
Senna is a stimulant laxative; concomitant use with other stimulant laxatives might compound fluid and electrolyte loss.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, excessive use of senna might increase the effects of warfarin.
Senna has stimulant laxative effects and can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding. In one case report, excessive use of senna for 3 weeks resulted in diarrhea, bloody stools, and an elevated INR of 11.9.

Likelihood Possible Evidence D
Senna Leaf Extract full monograph & interactions

Inulin1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, inulin might increase the risk of hypoglycemia with antidiabetes drugs.
Some clinical research shows that inulin improves glycemic control in patients with diabetes; however, it is unclear if it has hypoglycemic effects.

Likelihood Unlikely Evidence D
Inulin full monograph & interactions

Potassium3 drug types · 62 drugs

Ace Inhibitors (Aceis)

Using ACEIs with high doses of potassium increases the risk of hyperkalemia.
ACEIs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with potassium supplements increases the risk of hyperkalemia. However, concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels.

Likelihood Likely Evidence C
Angiotensin Receptor Blockers (Arbs)

Using ARBs with high doses of potassium increases the risk of hyperkalemia.
ARBs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with potassium supplements increases the risk of hyperkalemia. However, concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels.

Likelihood Likely Evidence C
Potassium-Sparing Diuretics

Concomitant use increases the risk of hyperkalemia.
Using potassium-sparing diuretics with potassium supplements increases the risk of hyperkalemia.

Likelihood Likely Evidence C
Potassium full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Peak Colon Support, from the product label.

Peak Pure & Natural

See all Peak Pure & Natural products
Name
Peak Pure & Natural
Street Address
P.O. Box 24638
City
West Palm Beach
State
FL
ZipCode
33416
Phone Number
1-866-773-6899
Web Address
www.PeakNatural.com
Pharmacist Counseling Corner

Peak Colon Support by Peak Pure & Natural: Common Questions

Does Peak Colon Support by Peak Pure & Natural interact with any medications?
Yes. Based on its ingredients, Peak Colon Support has a known interaction with 2,128 medications, including 1 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Peak Colon Support contains 7 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.
Is potassium in this supplement safe for me to take?
Potassium from food is fine, but supplemental potassium can build up to dangerous levels in your blood, especially if you have kidney disease or take certain blood pressure or heart medications. You should only use a potassium supplement under a doctor's guidance. Talk to your pharmacist or doctor before adding this product.
Can I take this if I'm on birth control?
Senna leaf extract in this product may interfere with how your body absorbs estrogen from hormonal birth control, potentially making it less effective. You'll want to discuss this with your doctor or pharmacist before using this product.
Will this help my constipation?
Aloe and senna are possibly to likely effective for constipation based on available research, and inulin is possibly effective as well. However, the product is designed for short-term use only—not daily long-term treatment. Talk to your doctor if you have ongoing constipation.
Is it safe to take while pregnant?
Potassium and inulin are likely safe in pregnancy at typical food amounts, but supplements should only be used under a doctor's guidance. Aloe should be avoided during pregnancy because the latex can stimulate the uterus and act as a strong laxative. Senna and cascara are stimulant laxatives generally not recommended in pregnancy. Talk to your doctor before using this product while pregnant.
What's the difference between aloe gel and aloe latex?
Aloe gel is the inner clear substance and is generally well tolerated. Aloe latex is from the leaf itself and is a strong laxative with more risk of serious side effects, especially with overuse—including potassium loss and heart rhythm problems. This product contains aloe vera gel extract, which carries lower risk than latex but still has interactions to watch for.
Can I take this long-term?
No. Senna and cascara are meant for short-term occasional use only. Long-term daily use of stimulant laxatives can cause serious problems including electrolyte loss, muscle weakness, and heart issues. Talk to your doctor about safe long-term options for digestive health.

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.

Peak Colon Support label
Go deeper

The Full Monographs Behind Peak Colon Support’s Ingredients

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

Herb & supplement monograph

Potassium

Interacts with 62 drugs

Potassium is an essential mineral your body needs for nerve signals, muscle function, and a steady heartbeat, and most people get enough from a balanced diet rich in fruits and vegetables. P...

Read the full Potassium monograph → Herb & supplement monograph

Aloe

Interacts with 461 drugs

Aloe vera gel is widely used on the skin for minor burns and irritation, and some research suggests it may help. Aloe latex (the yellow part) is a strong laxative that can cause cramping and...

Read the full Aloe monograph → Herb & supplement monograph

Inulin

Interacts with 86 drugs

Inulin is a type of plant fiber (a prebiotic) found naturally in foods like chicory root, onions, and garlic, and it is widely added to supplements and processed foods. It may help with regu...

Read the full Inulin monograph → Herb & supplement monograph

Black Walnut

Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these uses is lacking. It contains a compound ca...

Read the full Black Walnut monograph → Herb & supplement monograph

Senna

Interacts with 140 drugs

Senna is a plant-based stimulant laxative that is widely used and generally effective for short-term relief of constipation. It is best used occasionally and for only a few days at a time, s...

Read the full Senna monograph → Herb & supplement monograph

Slippery Elm

Interacts with 2,022 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 digestive tracts. Its mucilage can coat an...

Read the full Slippery Elm monograph → Herb & supplement monograph

Cascara Sagrada

Interacts with 745 drugs

Cascara sagrada is a stimulant laxative made from the aged bark of a Pacific Northwest tree, used mainly for short-term relief of constipation. Because it can cause cramping, dehydration, an...

Read the full Cascara Sagrada monograph →
Sources

Sources & How We Checked

Peak Colon Support'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 127 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.

Potassium 12 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Gennaro A. Remington: The Science and Practice of Pharmacy. 19th ed. Lippincott: Williams & Wilkins, 1996.
  3. Whelton PK, He J, Cutler JA, et al. Effects of oral potassium on blood pressure. Meta-analysis of randomized controlled clinical trials. JAMA 1997;277:1624-32. PubMed
  4. Phillips, C. O., Kashani, A., Ko, D. K., Francis, G., and Krumholz, H. M. Adverse effects of combination angiotensin II receptor blockers plus angiotensin-converting enzyme inhibitors for left ventricular dysfunction: a quantitative review of data from ra DOI
  5. Altieri, P. I., Herrero, C., Suero, R., and Ortiz, A. Bleeding duodenal ulcer in a patient taking slow-releasing potassium tablets. Bol.Asoc.Med P.R. 1977;69(8):276.
  6. Raf, L. E. Enteric-coated potassium chloride tablets and ulcer of the small intestine. Acta Chir Scand Suppl 1967;(374):1-87.
  7. Potassium chloride oral solution [package insert]. Allentown, PA: Lehigh Valley Technologies, Inc.; 2014.
  8. Potassium chloride injection [package insert]. Lake Forest, IL: Hospira Inc.; 2009.
  9. Patel RB, Tannenbaum S, Viana-Tejedor A, et al. Serum potassium levels, cardiac arrhythmias, and mortality following non-ST-elevation myocardial infarction or unstable angina: insights from MERLIN-TIMI 36. Eur Heart J Acute Cardiovasc Care 2017 Feb;6(1):1 PubMed
  10. Malta D, Arcand J, Ravindran A, Floras V, Allard JP, Newton GE. Adequate intake of potassium does not cause hyperkalemia in hypertensive individuals taking medications that antagonize the renin angiotensin aldosterone system. Am J Clin Nutr 2016 Oct;104(4 PubMed
  11. Keskin M, Kaya A, Tatlisu MA, et al. The effect of serum potassium level on in-hospital and long-term mortality in ST elevation myocardial infarction. Int J cardiol. 2016 Oct 15;221:505-10.
  12. Stallings VA, Harrison M, Oria M; Committee to Review the Dietary Reference Intakes for Sodium and Potassium, Food and Nutrition Board, Health and Medicine Division, National Academies of Sciences, Engineering, and Medicine. Washington (DC): National Acad

See these in context on the Potassium monograph →

Aloe 41 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Wichtl MW. Herbal Drugs and Phytopharmaceuticals. Ed. N.M. Bisset. Stuttgart: Medpharm GmbH Scientific Publishers, 1994.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Nusko G, Schneider B, Schneider I, et al. Anthranoid laxative use is not a risk factor for colorectal neoplasia: results of a prospective case control study. Gut 2000;46:651-5. PubMed
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Inulin 17 references
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See these in context on the Inulin monograph →

Black Walnut 3 references
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Senna 42 references
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Slippery Elm 3 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
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See these in context on the Slippery Elm monograph →

Cascara Sagrada 9 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
  5. Nusko G, Schneider B, Schneider I, et al. Anthranoid laxative use is not a risk factor for colorectal neoplasia: results of a prospective case control study. Gut 2000;46:651-5. PubMed
  6. Nadir A, Reddy D, Van Thiel DH. Cascara-sagrada induced intrahepatic cholestasis causing portal hypertension: case report and review of herbal hepatotoxicity. Am J Gastroenterol 2000;95:3634-7. PubMed
  7. Nakasone ES, Tokeshi J. A serendipitous find: a case of cholangiocarcinoma identified incidentally after acute liver injury due to cascara sagrada ingestion. Hawaii J Med Public Health 2015;74(6):200-2.
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  9. Mazzari ALDA, Lacerda MG, Milton FA, et al. In vitro effects of European and Latin-American medicinal plants in CYP3A4 gene expression, glutathione levels, and P-glycoprotein activity. Front Pharmacol 2022;13:826395. PubMed

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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.

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