Drug & supplement interaction

Jalap + Bendroflumethiazide, Nadolol

Bendroflumethiazide, Nadolol brand name: Corzide.

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

Jalap has a moderate interaction with Bendroflumethiazide, Nadolol. Jalap has diuretic effects. Overuse of jalap might compound diuretic-induced potassium loss.

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

Jalap and Bendroflumethiazide, Nadolol

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

Moderate

DIURETIC DRUGS

Why this applies to Bendroflumethiazide, Nadolol

Bendroflumethiazide, Nadolol falls under DIURETIC DRUGS — the group Jalap interacts with.

Jalap has diuretic effects. Overuse of jalap might compound diuretic-induced potassium loss. There is some concern that people taking jalap along with potassium depleting diuretics might have an increased risk for hypokalemia.
Some diuretics that can deplete potassium include chlorothiazide (Diuril), chlorthalidone (Thalitone), furosemide (Lasix), hydrochlorothiazide (HCTZ, Hydrodiuril, Microzide), and others.
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

Your medication, Corzide, is a combo pill: bendroflumethiazide (a water pill, or thiazide diuretic) plus nadolol (a beta-blocker for blood pressure). The thiazide part already nudges your body to flush out potassium along with extra fluid. Here's the concern with jalap: it's a harsh traditional laxative that causes violent diarrhea, and heavy fluid loss from the gut can drain potassium too. Stack that on top of your diuretic and your potassium could dip too low.

Low potassium can leave you feeling weak, crampy, tired, or cause an irregular heartbeat. Honestly, this pairing is based on theory more than hard studies, but jalap isn't something I'd reach for anyway. Please run it by your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 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

Jalap Also Interacts With Other Medications

Jalap has 21 major, 77 moderate, 1 minor known drug interactions in our database — the Bendroflumethiazide, Nadolol one above is one of them. If you take anything else, check it against the full list below.

Major 21 Moderate 77 Minor 1 No known interaction 2,731 (incl. Bendroflumethiazide, Nadolol)
Taking anything else?

Check Another of Your Medications Against Jalap

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

Everything else you take

See Every Supplement That Interacts With Bendroflumethiazide, Nadolol

This page covers Jalap only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bendroflumethiazide, Nadolol page lists 235 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Asarabacca (major) and Dolomite (major).

By severity: 12 major · 199 moderate · 24 minor.

From our pharmacist’s overview on the Bendroflumethiazide, Nadolol page

“Green tea worries me most. In human studies it cut blood levels of nadolol by roughly 85 percent, enough to undermine Corzide (bendroflumethiazide with nadolol) as a blood pressure treatment, and it earns one of the 12 major ratings here.”

Reviewed by 2 · Jul 18, 2026

Open the Bendroflumethiazide, Nadolol interaction page

One more smart check

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

We hold 4 real supplement products containing Jalap, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Jalap. Your product may carry other ingredients that interact with Bendroflumethiazide, Nadolol too, on top of Jalap — 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 Jalap and Bendroflumethiazide, Nadolol 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 Jalap
Top half

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

29 days ago today
Medication Bendroflumethiazide, Nadolol
Steady interest

#2,007 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 Jalap

What is Jalap?

  • Constipation
  • Strong laxative ('purgative') effect
  • Traditional remedy to 'clear out' the bowels
  • Historical use in folk medicine

Jalap is a powerful traditional laxative made from the root of a Mexican morning-glory plant. It is rarely used today because it can cause violent diarrhea, cramping, and dehydration, and safer laxatives are available. It is not recommended for routine self-treatment, and pregnant or breastfeeding people should avoid it.

Read the full Jalap monograph & all interactions
Keep checking

Other Drugs & Jalap

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

21Major
77Moderate
1Minor
2,730No known interaction
21 Major 77 Moderate 1 Minor 2,730 No interaction
Major

21 interactions

Moderate

77 interactions

Showing 60 of 77 moderate interactions — see all 77 on the Jalap page.

Minor

1 interaction

No interaction 2,730 drugs checked — show the list

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

Showing the 60 most looked-up of 2,730 medications checked with no known interaction — see the full Jalap list.

See the full Jalap interactions page
See every supplement checked against Bendroflumethiazide, Nadolol, 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
Jalap monograph › Uses, safety, and every drug interaction in one place Bendroflumethiazide, Nadolol supplement interactions › Every supplement checked against Bendroflumethiazide, Nadolol, 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 Jalap and Bendroflumethiazide, Nadolol Together: Common Questions

Can you take Jalap with Bendroflumethiazide, Nadolol?
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 Jalap and Bendroflumethiazide, Nadolol 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 Bendroflumethiazide, Nadolol and Jalap?

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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.