Drug & supplement interaction

Oleander + Docusate Sodium, Sennosides (OTC drug)

Docusate Sodium, Sennosides (OTC drug) brand name: Senokot-S.

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

Oleander has a major interaction with Docusate Sodium, Sennosides (OTC drug). Theoretically, stimulant laxatives may increase the risk of oleander toxicity.

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

Oleander and Docusate Sodium, Sennosides (OTC drug)

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

Major

STIMULANT LAXATIVES

Why this applies to Docusate Sodium, Sennosides (OTC drug)

Docusate Sodium, Sennosides (OTC drug) falls under STIMULANT LAXATIVES — the group Oleander interacts with.

Theoretically, stimulant laxatives may increase the risk of oleander toxicity.
Overuse or misuse of stimulant laxatives leads to potassium depletion. This might increase the risk of toxicity with cardiac glycosides, including those in oleander.
Severity Major Likelihood Probable Evidence D

Interaction 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..

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

First, the big picture: oleander itself is genuinely dangerous and shouldn't be used as a supplement at all. Its plant chemicals act on the heart much like digoxin, and even tiny amounts can trigger life-threatening heart rhythm problems. So this isn't really about your Senokot-S being risky on its own.

Here's the connection. Senokot-S contains sennosides, a stimulant laxative. If you overuse it or take it too long, it can flush out potassium and leave you low on that mineral. Low potassium is exactly the setting where oleander's heart effects become more dangerous. This concern is theoretical, based on how these things work, but the stakes are too high to ignore. Please don't use oleander, and check with your pharmacist before relying on stimulant laxatives long term.

Contact Dr. Brian directly if you have additional questions on this interaction
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.

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

Oleander Also Interacts With Other Medications

Oleander has 132 major, 23 moderate known drug interactions in our database — the Docusate Sodium, Sennosides (OTC drug) one above is one of them. If you take anything else, check it against the full list below.

Major 132 Moderate 23 No known interaction 2,675 (incl. Docusate Sodium, Sennosides (OTC drug))
Taking anything else?

Check Another of Your Medications Against Oleander

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

Everything else you take

See Every Supplement That Interacts With Docusate Sodium, Sennosides (OTC drug)

This page covers Oleander only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Docusate Sodium, Sennosides (OTC drug) 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), Alder Buckthorn (moderate), Aloe (moderate) and Black Hellebore (moderate).

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

From our pharmacist’s overview on the Docusate Sodium, Sennosides (OTC drug) page

“The single biggest hazard on this page is piling more laxatives on top of Senokot-S, which already combines the stimulant laxative senna with a stool softener. Twenty-nine of the 46 supplements listed, aloe latex and cascara sagrada among them, act as stimulant laxatives themselves, and doubling up can drain fluid and potassium quickly.”

Reviewed by 2 · Jul 18, 2026

Open the Docusate Sodium, Sennosides (OTC drug) interaction page

How much people look this up

Where Oleander and Docusate Sodium, Sennosides (OTC drug) 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 Oleander
Top half

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

29 days ago today
Medication Docusate Sodium, Sennosides (OTC drug)
Steady interest

#2,158 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 Oleander

What is Oleander?

  • Heart failure (traditional)
  • Cancer (investigational)
  • Skin conditions
  • Asthma (folk use)
  • Pain relief (folk use)

Oleander is a highly poisonous ornamental plant, and every part of it can cause life-threatening heart and nervous system effects, even in small amounts. There is no proven safe dose for self-use, and serious poisonings and deaths have occurred from teas, extracts, and accidental ingestion. We strongly advise against using oleander as a supplement.

Read the full Oleander monograph & all interactions
Keep checking

Other Drugs & Oleander

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

132Major
23Moderate
0Minor
2,674No known interaction
132 Major 23 Moderate 2,674 No interaction
Major

132 interactions

Showing 60 of 132 major interactions — see all 132 on the Oleander page.

Moderate

23 interactions

No interaction 2,674 drugs checked — show the list

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

Showing the 60 most looked-up of 2,674 medications checked with no known interaction — see the full Oleander list.

See the full Oleander interactions page
See every supplement checked against Docusate Sodium, Sennosides (OTC drug), 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
Oleander monograph › Uses, safety, and every drug interaction in one place Docusate Sodium, Sennosides (OTC drug) supplement interactions › Every supplement checked against Docusate Sodium, Sennosides (OTC drug), 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 Oleander and Docusate Sodium, Sennosides (OTC drug) Together: Common Questions

Can you take Oleander with Docusate Sodium, Sennosides (OTC drug)?
This is rated a major interaction, so the combination is best avoided unless your doctor or pharmacist has specifically told you otherwise. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Oleander and Docusate Sodium, Sennosides (OTC drug) interaction?
We rate it Major. This is a clinically significant combination that is generally best avoided, or used only under the direct supervision of your physician or pharmacist.

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

Still Have a Question About Docusate Sodium, Sennosides (OTC drug) and Oleander?

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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.