Drug & supplement interaction

Picrorhiza + Quinidine

Quinidine brand names: Quinaglute Duratabs, Quinaglute, Duraquin, Cardioquin, Cin-Quin, and others.

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 Picrorhiza and Quinidine 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. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Picrorhiza and Quinidine

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 Quinidine and Picrorhiza 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.

Picrorhiza safety at a glance

Picrorhiza overall Use caution Generally used in traditional medicine, but human safety data are limited, so use with care.
Pregnancy Avoid Not enough safety information; avoid use during pregnancy.
Breastfeeding Avoid Not enough safety information; avoid use while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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

Why No Interaction Is Listed for Quinidine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Quinidine is filed under 9 classifications — including cytochrome p450 2d6 (cyp2d6) inhibitors, qt interval-prolonging drugs, p-glycoprotein substrates. Picrorhiza has documented interactions with 2 drug classes — the most serious being antidiabetes drugs (moderate) and immunosuppressants (moderate) — and none of Quinidine’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

Picrorhiza Does Interact With Other Medications

Picrorhiza has 207 moderate known drug interactions in our database — Quinidine isn’t one of them. If you take anything else, check it against the full list below.

Moderate 207 No known interaction 2,623 (incl. Quinidine)
Taking anything else?

Check Another of Your Medications Against Picrorhiza

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

What to actually watch for

No Interaction Found — But Data Suggests Picrorhiza and Quinidine May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do.

  • Itching / A skin rash Additional detail

    Picrorhiza

    “Orally, picrorhiza may cause vomiting, rash, anorexia, diarrhea, itching, and giddiness.”

    Picrorhiza · Natural Medicines adverse-effect record, reported in anorexia.

    1 source cited
    1. 11858. Doshi VB, Shetye VM, Mahashur AA, Kamat SR. Picrorrhiza kurroa in bronchial asthma. J Postgrad Med 1983;29:89-95.

    “Orally, picrorhiza may cause rash and itching.”

    Picrorhiza · Natural Medicines adverse-effect record, reported in pruritus.

    1 source cited
    1. 11858. Doshi VB, Shetye VM, Mahashur AA, Kamat SR. Picrorrhiza kurroa in bronchial asthma. J Postgrad Med 1983;29:89-95.

    Quinidine

    Listed in the ADVERSE REACTIONS section of the FDA label for Quinidine. Read the label on DailyMed ›

  • Diarrhea / Vomiting Additional detail

    Picrorhiza

    “Orally, picrorhiza may cause vomiting, anorexia, and diarrhea.”

    Picrorhiza · Natural Medicines adverse-effect record, reported in anorexia.

    1 source cited
    1. 11858. Doshi VB, Shetye VM, Mahashur AA, Kamat SR. Picrorrhiza kurroa in bronchial asthma. J Postgrad Med 1983;29:89-95.

    Quinidine

    Listed in the ADVERSE REACTIONS section of the FDA label for Quinidine. Read the label on DailyMed ›

Reported for Picrorhiza but not commonly for Quinidine: reduced appetite.

Effects for Quinidine come from the ADVERSE REACTIONS section of its FDA label; effects for Picrorhiza come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

From our Q&A

Questions About Picrorhiza or Quinidine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Picrorhiza or Quinidine, 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 Quinidine

This page covers Picrorhiza only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Quinidine page lists 207 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Beer (major) and Cesium (major).

By severity: 15 major · 157 moderate · 35 minor.

From our pharmacist’s overview on the Quinidine page

“Grapefruit belongs nowhere near quinidine. The juice blocks the main enzyme that clears this heart rhythm medicine, so quinidine levels can climb into dangerous territory, and it leads a list of 207 supplement and herbal ingredients I would treat with real seriousness, 15 of them rated major.”

Reviewed by 2 · Jul 18, 2026

Open the Quinidine interaction page

One more smart check

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

We hold 177 real supplement products containing Picrorhiza, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Picrorhiza. Even though Picrorhiza itself has no known interaction with Quinidine, 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 Picrorhiza and Quinidine 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 Picrorhiza
Top half

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

29 days ago today
Medication Quinidine
Steady interest

#1,844 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 Picrorhiza reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Picrorhiza and Quinidine records this page draws on were last updated July 10, 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 Picrorhiza

What is Picrorhiza?

  • Liver support
  • Digestive complaints
  • Asthma and breathing problems
  • Skin conditions
  • Fever
  • Immune support

Picrorhiza (Picrorhiza kurroa) is a bitter Himalayan herb used in Ayurvedic medicine, mainly for liver and digestive complaints. Early lab and small human studies suggest possible liver-protective and anti-inflammatory effects, but high-quality evidence is limited. Talk with your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Picrorhiza kurroa · Plantaginaceae · Roots and rhizomes · Capsules, tablets, powder (churna), liquid extracts, and traditional herbal formulas

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

Picrorhiza: dosing

There is no well-established standard dose of Picrorhiza. The amount used can vary widely depending on the form (powder, capsule, or extract) and how concentrated the product is.The safest approach is to follow the dosing directions on the product label and not to exceed them.

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

Read the full Picrorhiza monograph & all interactions
Medication

About Quinidine

What Is Quinidine Used For?

Brand names: Quinaglute Duratabs, Quinaglute, Duraquin, Cardioquin, Cin-Quin, Quinora, Lin-Qin, Quinova, Quinidex Extentabs

Quinidine is used to help restore a normal heart rhythm in people with atrial fibrillation or atrial flutter (irregular, rapid heart rhythms originating in the upper chambers). It is also used on an ongoing basis to reduce how often those episodes come back, in patients whose episodes are frequent and poorly tolerated — but only after other options have been tried first.

Quinidine sulfate oral tablets and quinidine gluconate extended-release oral tablets are both approved for these heart-rhythm uses. Quinidine sulfate tablets are additionally used as part of an approved treatment regimen for life-threatening Plasmodium falciparum malaria, in combination with quinidine gluconate injection (the central component of that regimen). Both formulations may also be used to suppress recurrent, documented life-threatening ventricular arrhythmias (dangerous rapid rhythms in the lower chambers of the heart), such as sustained ventricular tachycardia.

See full Quinidine drug information
Keep checking

Other Drugs & Picrorhiza

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

0Major
207Moderate
0Minor
2,622No known interaction
207 Moderate 2,622 No interaction
Moderate

207 interactions

Showing 60 of 207 moderate interactions — see all 207 on the Picrorhiza page.

No interaction 2,622 drugs checked — show the list

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

Showing the 60 most looked-up of 2,622 medications checked with no known interaction — see the full Picrorhiza list.

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

Picrorhiza References

The 7 references that drive our Picrorhiza 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. Sharma ML, Rao CS, Duda PL. Immunostimulatory activity of Picrorhiza kurroa leaf extract. J Ethnopharmacol 1994;41:185-92. PubMed
  2. Bedi KL, Zutshi U, Chopra CL, Amla V. Picrorhiza kurroa, an ayurvedic herb, may potentiate photochemotherapy in vitiligo. J Ethnopharmacol 1989;27:347-52. PubMed
  3. Vaidya AB, Antarkar DS, Doshi JC, et al. Picrorhiza kurroa (Kutaki) Royle ex Benth as a hepatoprotective agent--experimental & clinical studies. J Postgrad Med 1996;42:105-8.
  4. Baruah CC, Gupta PP, Nath A, et al. Anti-allergic and anti-anaphylactic activity of picroliv--a standardised iridoid glycoside fraction of Picrorhiza kurroa. Pharmacol Res 1998;38:487-92.
  5. Doshi VB, Shetye VM, Mahashur AA, Kamat SR. Picrorrhiza kurroa in bronchial asthma. J Postgrad Med 1983;29:89-95.
  6. Joy, K. L. and Kuttan, R. Anti-diabetic activity of Picrorrhiza kurroa extract. J Ethnopharmacol 11-1-1999;67(2):143-148. PubMed
  7. Brockwell C, Ampikaipakan S, Sexton DW, Price D, Freeman D, Thomas M, Ali M, Wilson AM. Adjunctive treatment with oral AKL1, a botanical nutraceutical, in chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis 2014;9:715-21. PubMed

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 Picrorhiza and Quinidine Together: Common Questions

Is it safe to take Picrorhiza with Quinidine?
We do not list a known interaction between Picrorhiza and Quinidine. 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.
Do Picrorhiza and Quinidine have any of the same side effects?
Yes — our sources link each of them separately to 4 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
How was the Picrorhiza and Quinidine combination checked?
Interactions in our licensed database are recorded against drug classes. Quinidine is filed under 9 classifications, and Picrorhiza has documented interactions with 2 drug classes — none of Quinidine'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 Picrorhiza interact with any other medications?
Yes. Picrorhiza has 207 documented drug interactions in our database — Quinidine 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 Quinidine interact with any supplements?
Yes. Quinidine has documented interactions with 207 supplements in our database — Picrorhiza is not one of them. The Quinidine 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

Picrorhiza monograph Uses, safety profile, and every drug interaction in one place Quinidine drug information The full plain-English guide to this medication Quinidine supplement interactions Every supplement checked against Quinidine, 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 7 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Quinidine and Picrorhiza?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.