Drug & supplement interaction

Gardenia + Dehydrocholic Acid

Dehydrocholic Acid brand name: Decholin.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Gardenia has a moderate interaction with Dehydrocholic Acid. Theoretically, gardenia might increase the effects and adverse effects of stimulant laxatives.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Gardenia and Dehydrocholic Acid

Here is the interaction we found between these two, with the evidence behind it.

Moderate

STIMULANT LAXATIVES

Why this applies to Dehydrocholic Acid

Dehydrocholic Acid falls under STIMULANT LAXATIVES — the group Gardenia interacts with.

Theoretically, gardenia might increase the effects and adverse effects of stimulant laxatives.
Animal research shows that geniposide, a glucoside found in gardenia fruit, may function as a laxative and cause diarrhea when taken orally.
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version: Dehydrocholic Acid (Decholin) works in your gut to get things moving, and gardenia fruit appears to do something similar. In animal studies, a compound in gardenia called geniposide acted like a laxative and could trigger diarrhea on its own. So if you take both together, the worry is that their effects could stack up.

What that might feel like is stronger bowel activity than you wanted: loose or watery stools, cramping, and over time the risk of dehydration or losing electrolytes like potassium. I want to be honest, though, this is a theoretical concern based only on lab and animal research, not strong human studies. Still, before pairing them, it's worth a quick chat with your pharmacist or doctor.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Yamauchi, K., Fujimoto, N., Kuwano, S., Inouye, H., and Inoue, K. The mechanism of purgative action of geniposide, an iridoid glucoside of the fruit of Gardenia, in mice. Planta Med 1976;30(1):39-47.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Gardenia Also Interacts With Other Medications

Gardenia has 20 moderate known drug interactions in our database — the Dehydrocholic Acid one above is one of them. If you take anything else, check it against the full list below.

Moderate 20 No known interaction 2,810 (incl. Dehydrocholic Acid)
Taking anything else?

Check Another of Your Medications Against Gardenia

Covers the 2,830 medications we’ve checked against Gardenia. Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Dehydrocholic Acid

This page covers Gardenia only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dehydrocholic Acid page lists 46 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Jalap (major), Oleander (major), Alder Buckthorn (moderate) and Aloe (moderate).

By severity: 3 major · 34 moderate · 9 minor.

From our pharmacist’s overview on the Dehydrocholic Acid page

“Dehydrocholic acid (Decholin) is itself a stimulant laxative, which is why I want you genuinely careful with this list. Twenty-nine of the 46 flagged supplements are herbal laxatives, and stacking them on this drug compounds fluid and potassium loss.”

Reviewed by 2 · Jul 18, 2026

Open the Dehydrocholic Acid interaction page

One more smart check

Taking Gardenia as Part of a Dietary Supplement Product? Check It for Interactions

We hold 240 real supplement products containing Gardenia, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Gardenia. Your product may carry other ingredients that interact with Dehydrocholic Acid too, on top of Gardenia — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Gardenia and Dehydrocholic Acid Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Gardenia
Steady interest

#762 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Dehydrocholic Acid
Top half

#1,383 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Supplement

About Gardenia

What is Gardenia?

Gardenia
  • Liver and digestive complaints
  • Fever and inflammation
  • Anxiety, restlessness, and trouble sleeping
  • Blood pressure and blood sugar support (traditional)
  • Natural food and fabric coloring

Gardenia fruit has a long history in traditional Chinese medicine and is also used as a natural food coloring. While early lab and animal studies are interesting, strong human evidence for its health benefits is lacking, so talk with your pharmacist or doctor before using it as a supplement.

Read the full Gardenia monograph & all interactions
Keep checking

Other Drugs & Gardenia

Browse every other medication we’ve checked against Gardenia — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
20Moderate
0Minor
2,809No known interaction
20 Moderate 2,809 No interaction
Moderate

20 interactions

No interaction 2,809 drugs checked — show the list

We also checked Gardenia against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,809 medications checked with no known interaction — see the full Gardenia list.

See the full Gardenia interactions page
See every supplement checked against Dehydrocholic Acid, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

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

Keep exploring
Gardenia monograph › Uses, safety, and every drug interaction in one place Dehydrocholic Acid supplement interactions › Every supplement checked against Dehydrocholic Acid, ranked by severity Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Gardenia and Dehydrocholic Acid Together: Common Questions

Can you take Gardenia with Dehydrocholic Acid?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Gardenia and Dehydrocholic Acid interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Dehydrocholic Acid and Gardenia?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.