Drug & supplement interaction

Snake Skin + Fruquintinib

Fruquintinib brand name: Fruzaqla.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Snake Skin and Fruquintinib 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

Snake Skin and Fruquintinib

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 Fruquintinib and Snake Skin 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 Snake Skin at all — not against Fruquintinib, 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.

Snake Skin safety at a glance

Snake Skin overall Not established Modern safety and quality data are very limited, and contamination is a real concern with animal-derived products.
Pregnancy Avoid Not enough safety information exists, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data while breastfeeding, so avoid use.

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

Still wondering about combining Fruquintinib and Snake Skin? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Fruquintinib’s Own FDA Label Lists

This is not an interaction — none of it involves Snake Skin. These are the most notable effects listed in the ADVERSE REACTIONS section of Fruquintinib’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 6 of them are worth acting on rather than waiting out — marked below.

  • A change in thyroid levels Worth acting on
  • Kidney problems Worth acting on
  • Raised blood pressure Worth acting on
  • Liver problems Worth acting on
  • Bleeding or bruising Worth acting on
  • A higher chance of infection Worth acting on
  • Mouth irritation or sores
  • Joint pain
  • Muscle pain
  • Stomach pain

Showing the 10 most notable of 13 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Fruquintinib. Read the label on DailyMed › Snake Skin’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Snake Skin side to compare — that is a limit of the record, not a statement that Snake Skin has no side effects.

Everything else you take

See Every Supplement That Interacts With Fruquintinib

This page covers Snake Skin only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fruquintinib page lists 168 supplements it has a documented interaction with, worst first, each one explained.

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

By severity: 6 major · 124 moderate · 38 minor.

From our pharmacist’s overview on the Fruquintinib page

“Fruquintinib (Fruzaqla) is an oral targeted therapy for advanced colorectal cancer, which means keeping its blood level steady is part of what makes it work, and I would treat this supplement list with genuine care. Of the 168 ingredients on file, the large majority interact through CYP3A4, the liver enzyme that clears the drug, so the…”

Reviewed by 2 · Jul 18, 2026

Open the Fruquintinib interaction page

How much people look this up

Where Snake Skin and Fruquintinib 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 Snake Skin
Steady interest

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

29 days ago today
Medication Fruquintinib
Top half

#881 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 Snake Skin reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Snake Skin and Fruquintinib records this page draws on were last updated July 3, 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 Snake Skin

What is Snake Skin?

  • Skin conditions and itching
  • Eye complaints (traditional use)
  • Childhood convulsions (traditional use)
  • Sore throat
  • Wound and boil care (topical, traditional)

Snake skin (the shed slough of snakes, called 'She Tui' in Traditional Chinese Medicine) is a folk remedy mainly used for skin and eye complaints. There is very little modern scientific research to confirm any benefit, and safety has not been well studied, so use it cautiously and only after talking with a knowledgeable healthcare provider.

Shed skin (slough) of snakes; in Traditional Chinese Medicine often from species such as Elaphe (snake slough, 'She Tui') · Dried slough used in decoctions, powders, and topical preparations; sometimes found in combination herbal formulas

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

Snake Skin: dosing

There is no established or standardized dose for snake skin. Traditional formulas vary widely, and modern research has not defined a safe and effective amount.If you choose to use a product that contains snake skin, follow the directions on the label and do not exceed them.

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

Read the full Snake Skin monograph & all interactions
Medication

About Fruquintinib

What Is Fruquintinib Used For?

Brand name: Fruzaqla

Fruzaqla (fruquintinib) is used to treat adults with metastatic colorectal cancer (mCRC) — colorectal cancer that has spread to other parts of the body. It is specifically for patients who have already been treated with several standard chemotherapy regimens and other targeted therapies.

Fruzaqla is intended for patients who have previously received fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy, an anti-VEGF therapy, and — if their tumor is RAS wild-type and it is medically appropriate — an anti-EGFR therapy.

Most-Reported Side Effects for Fruquintinib

From FAERS, the FDA’s public side-effect reporting system (3,770 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 470 reports
Colorectal cancer metastatic 388 reports
Colon cancer 371 reports
Diarrhea 275 reports
Blood pressure increased 269 reports
See full Fruquintinib drug information
Keep checking

Other Drugs & Snake Skin

Browse every other medication we’ve checked against Snake Skin — 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 Snake Skin 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 Snake Skin list.

See the full Snake Skin interactions page
See every supplement checked against Fruquintinib, ranked by severity
Evidence & sources

Snake Skin References

The 1 references that drive our Snake Skin 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. Zhang, R. J., Zhao, Y. W., Tang, F. U., Sheng, S. S., and Zhou, Y. Y. Clinical effect of traditional Chinese herbs combined with sodium iodide in treating corneal opacity. Int J Ophthalmol 2007;7(1):217-9.

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 Snake Skin and Fruquintinib Together: Common Questions

Is it safe to take Snake Skin with Fruquintinib?
We do not list a known interaction between Snake Skin and Fruquintinib. 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.
Does Fruquintinib interact with any supplements?
Yes. Fruquintinib has documented interactions with 168 supplements in our database — Snake Skin is not one of them. The Fruquintinib 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

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

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.