Drug & supplement interaction

Sumbul + Sorafenib

Sorafenib brand name: Nexavar.

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 Sumbul and Sorafenib 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 label for Sorafenib states a food rule worth keeping to.

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Interaction report

Sumbul and Sorafenib

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 Sorafenib and Sumbul 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Sumbul at all — not against Sorafenib, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

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.

Sumbul safety at a glance

Sumbul overall Not established Little modern safety data exists, so use cautiously and under professional guidance.
Pregnancy Avoid Safety is not established; avoid use during pregnancy.
Breastfeeding Possibly Unsafe When sumbul leaves are used orally. After a breastfeeding parent consumed sumbul leaves, both the parent and breastfeeding infant experienced several episodes o... 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 Sorafenib and Sumbul? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Sumbul Itself Has Been Linked To

This is not an interaction — nothing below involves Sorafenib. It is the side-effect record for Sumbul on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Sumbul, this list is the first place to look.

  • Vomiting Additional detail

    “There is currently a limited amount of information on the adverse effects of sumbul.

    Serious Adverse Effects (Rare):

    Orally: Vomiting requiring hospitalization in individuals consuming sumbul leaf.”

    Sumbul · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    “Orally, ingestion of sumbul leaves may cause vomiting. In one case, a mother and nursing infant presented to the emergency department after experiencing several episodes of vomiting two hours after the mother consumed sumbul leaves and later nursed the infant. The amount of sumbul leaves consumed was not reported.”

    Sumbul · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 106524. Derin H, Yildirim G, Çaksen H. Intoxication from Ferula sumbul leaves in a mother and her infant. J Pediatr Intensive Care 2013;2(4):193-4.

Everything above comes from the Natural Medicines adverse-effect record for Sumbul — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Sorafenib’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Sorafenib column appears here.

Special populations

Sumbul in Pregnancy & Breastfeeding

Lactation Possibly Unsafe

When sumbul leaves are used orally. After a breastfeeding parent consumed sumbul leaves, both the parent and breastfeeding infant experienced several episodes of vomiting two hours later, suggesting that sumbul leaf constituents may pass through breast milk. There is insufficient reliable information available about the effects of sumbul root products during lactation; 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

How to take them

Some Sorafenib Products Have a Food Rule — Sumbul Should Not Break It

At least one FDA label for a product containing Sorafenib says to take it on an empty stomach. Most supplements — Sumbul included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Sorafenib on its own and move Sumbul to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Sorafenib products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION The recommended dosage is 400 mg orally twice daily without food.

From the Dosage and Administration section of the FDA label we read for Sorafenib — where that label names a specific product, the instruction is that product's. See the Sorafenib drug page ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Sorafenib

This page covers Sumbul only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sorafenib page lists 285 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Danshen (major), Grapefruit (major), Piracetam (major) and St. John's Wort (major).

By severity: 5 major · 241 moderate · 39 minor.

From our pharmacist’s overview on the Sorafenib page

“If you're on sorafenib (Nexavar) for cancer, be genuinely careful here, and learn the five major-rated entries first. Most of the 285 ingredients listed either have blood-thinning effects that stack onto sorafenib's bleeding risk (more than 200 do) or affect CYP3A4, the liver enzyme that clears the drug, pushing its level too high or t…”

Reviewed by 2 · Jul 18, 2026

Open the Sorafenib interaction page

One more smart check

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

We hold 4 real supplement products containing Sumbul, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Sumbul. Even though Sumbul itself has no known interaction with Sorafenib, 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 Sumbul and Sorafenib 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 Sumbul
Steady interest

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

29 days ago today
Medication Sorafenib
Steady interest

#2,272 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 Sumbul reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Sumbul and Sorafenib 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 Sumbul

What is Sumbul?

Sumbul
  • Nervous tension and anxiety
  • Muscle spasms and cramps
  • Menstrual discomfort
  • Digestive upset
  • Traditional aphrodisiac

Sumbul is a musky-smelling root from a Ferula plant that has been used in traditional medicine mainly as a calming, antispasmodic remedy. There is very little modern scientific research to confirm any of its benefits, and its safety has not been well studied. Talk with a pharmacist or doctor before using it.

Ferula sumbul · Apiaceae · Root (rhizome) · Tincture, fluid extract, dried root, powder

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

Sumbul: dosing

There is no standardized, well-established dose for Sumbul. Historical doses were given as tinctures or fluid extracts, but those figures come from old herbal references and may not be safe or reliable today.If you choose to use a Sumbul product, follow the directions on the label and do not exceed them.

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

Read the full Sumbul monograph & all interactions
Medication

About Sorafenib

What Is Sorafenib Used For?

Brand name: Nexavar

Sorafenib tablets are approved to treat three types of cancer. The first is unresectable hepatocellular carcinoma (HCC) — liver cancer that cannot be removed with surgery. The second is advanced renal cell carcinoma (RCC) — kidney cancer that has spread or progressed. Both the brand Nexavar and generic sorafenib tablets are approved for these two uses.

The third use is for locally recurrent or metastatic, progressive differentiated thyroid carcinoma (DTC) — thyroid cancer that has spread or worsened and no longer responds to radioactive iodine treatment. Nexavar and sorafenib tablets are both approved for this use as well.

See full Sorafenib drug information
Keep checking

Other Drugs & Sumbul

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

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Sumbul list.

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

Sumbul References

The 1 references that drive our Sumbul 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. Derin H, Yildirim G, Çaksen H. Intoxication from Ferula sumbul leaves in a mother and her infant. J Pediatr Intensive Care 2013;2(4):193-4.

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 Sumbul and Sorafenib Together: Common Questions

Is it safe to take Sumbul with Sorafenib?
We do not list a known interaction between Sumbul and Sorafenib. 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.
Should I take Sumbul and Sorafenib at the same time of day?
At least one FDA label for a product containing Sorafenib says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Sorafenib on its own and move Sumbul to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Sorafenib interact with any supplements?
Yes. Sorafenib has documented interactions with 285 supplements in our database — Sumbul is not one of them. The Sorafenib 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

Sumbul monograph Uses, safety profile, and every drug interaction in one place Sorafenib drug information The full plain-English guide to this medication Sorafenib supplement interactions Every supplement checked against Sorafenib, 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 Sorafenib and Sumbul?

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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.