Drug & supplement interaction

Jalap + Dextromethorphan

Dextromethorphan brand names: Hold, Benylin Adult, Benylin Pediatric, Theraflu Thin Strips Long Acting Cough, Neo Citran Thin Strips Cough.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Jalap and Dextromethorphan in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Jalap and Dextromethorphan

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Dextromethorphan and Jalap in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Jalap safety at a glance

Jalap overall Use caution Jalap is a harsh purgative that can cause severe cramping and dehydration, so it is generally not recommended.
Pregnancy Avoid Strong laxatives like jalap may stimulate the gut and should be avoided during pregnancy.
Breastfeeding Unsafe When used orally. Jalap can be a menstrual stimulant; avoid using. Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Dextromethorphan and Jalap? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Dextromethorphan

Interactions in our licensed database are recorded against drug classes, not just single drug names. Dextromethorphan is filed under 6 classifications — including serotonergic drugs, serotonergic drugs, cytochrome p450 2d6 (cyp2d6) substrates. Jalap has documented interactions with 5 drug classes — the most serious being stimulant laxatives (major), digoxin (lanoxin) (moderate) and diuretic drugs (moderate) — and none of Dextromethorphan’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Jalap Does Interact With Other Medications

Jalap has 21 major, 78 moderate, 1 minor known drug interactions in our database — Dextromethorphan isn’t one of them. If you take anything else, check it against the full list below.

Major 21 Moderate 78 Minor 1 No known interaction 2,730 (incl. Dextromethorphan)
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.

Special populations

Jalap in Pregnancy & Breastfeeding

Lactation Unsafe

When used orally. Jalap can be a menstrual stimulant; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Jalap or Dextromethorphan

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Jalap or Dextromethorphan, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Dextromethorphan

This page covers Jalap only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dextromethorphan page lists 171 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), Lithium (major), St. John's Wort (major) and 1,3-dmaa (moderate).

By severity: 4 major · 125 moderate · 42 minor.

From our pharmacist’s overview on the Dextromethorphan page

“A glass of grapefruit juice can push dextromethorphan (Benylin, Hold, and other cough medicines) to higher levels than intended, one of four major-rated entries among the 171 supplements and herbs on file, and the list as a whole warrants real care. Most interactions trace back to the liver enzymes (CYP3A4 and CYP2D6) that clear dextro…”

Reviewed by 2 · Jul 18, 2026

Open the Dextromethorphan 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. Even though Jalap itself has no known interaction with Dextromethorphan, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Jalap and Dextromethorphan 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

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

29 days ago today
Medication Dextromethorphan
Top 25%

#314 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.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Jalap reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Jalap and Dextromethorphan records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
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.

Ipomoea purga · Convolvulaceae · Dried tuberous root (and the resin extracted from it) · Dried root powder, resin, tinctures, and historically as a component of laxative preparations

An interaction check asks whether these two react with each other — it does not ask whether Jalap is a good idea for someone in your situation. Here is what our Jalap record says about it on its own.

Jalap: dosing

There is no established, standardized modern dose for jalap, and it is not recommended for general use. Because the resin is so potent, even small differences in amount can cause harsh effects.If you encounter a product containing jalap, follow the product label exactly and do not exceed it.

From our Jalap monograph — the full record covers uses, side effects and every documented interaction.

Read the full Jalap monograph & all interactions
Medication

About Dextromethorphan

What Is Dextromethorphan Used For?

Brand names: Hold, Benylin Adult, Benylin Pediatric, Theraflu Thin Strips Long Acting Cough, Neo Citran Thin Strips Cough

Dextromethorphan temporarily relieves cough due to minor throat and bronchial irritation, such as the kind that comes with the common cold or breathing in irritants. It also helps reduce the urge to cough so you — or your child — can get to sleep.

Some products, including CVS Long Acting Cough and Premier Value Tussin Cough oral liquids, are also indicated to help loosen phlegm (mucus) and thin bronchial secretions to help drain the airways.

See full Dextromethorphan drug information
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
78Moderate
1Minor
2,729No known interaction
21 Major 78 Moderate 1 Minor 2,729 No interaction
Major

21 interactions

Moderate

78 interactions

Showing 60 of 78 moderate interactions — see all 78 on the Jalap page.

Minor

1 interaction

No interaction 2,729 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 2,729 medications checked with no known interaction — see the full Jalap list.

See the full Jalap interactions page
See every supplement checked against Dextromethorphan, ranked by severity
Evidence & sources

Jalap References

The 1 references that drive our Jalap monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Jalap and Dextromethorphan Together: Common Questions

Is it safe to take Jalap with Dextromethorphan?
We do not list a known interaction between Jalap and Dextromethorphan. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
How was the Jalap and Dextromethorphan combination checked?
Interactions in our licensed database are recorded against drug classes. Dextromethorphan is filed under 6 classifications, and Jalap has documented interactions with 5 drug classes — none of Dextromethorphan's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Jalap interact with any other medications?
Yes. Jalap has 100 documented drug interactions in our database — Dextromethorphan is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Dextromethorphan interact with any supplements?
Yes. Dextromethorphan has documented interactions with 171 supplements in our database — Jalap is not one of them. The Dextromethorphan interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Jalap monograph Uses, safety profile, and every drug interaction in one place Dextromethorphan drug information The full plain-English guide to this medication Dextromethorphan supplement interactions Every supplement checked against Dextromethorphan, 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 References The 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Dextromethorphan and Jalap?

Our pharmacists answer your medication & supplement questions — free.

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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.