Drug & supplement interaction

Scotch Thistle + Bezlotoxumab

Bezlotoxumab brand name: Zinplava.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Scotch Thistle and Bezlotoxumab 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.

Know someone taking this? Share
Interaction report

Scotch Thistle and Bezlotoxumab

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 Bezlotoxumab and Scotch Thistle 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 Scotch Thistle at all — not against Bezlotoxumab, 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.

Scotch Thistle safety at a glance

Scotch Thistle overall Not established There is little high-quality research on its safety in humans.
Pregnancy Avoid Not enough safety data, so avoid use during pregnancy.
Breastfeeding Avoid Safety is unknown while breastfeeding, so it is best avoided.

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

Still wondering about combining Bezlotoxumab and Scotch Thistle? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Bezlotoxumab’s Own FDA Label Lists

This is not an interaction — none of it involves Scotch Thistle. These are the most notable effects listed in the ADVERSE REACTIONS section of Bezlotoxumab’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. 3 of them are worth acting on rather than waiting out — marked below.

  • Heart failure Worth acting on
  • Raised blood pressure Worth acting on
  • Shortness of breath Worth acting on
  • Fever mentioned in 5.2% of FDA reports for Bezlotoxumab
  • Tiredness
  • Dizziness
  • Nausea mentioned in 4.9% of FDA reports for Bezlotoxumab
  • Headache

From the ADVERSE REACTIONS section of the FDA label for Bezlotoxumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 349 voluntary FDA FAERS reports for Bezlotoxumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Scotch Thistle’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Scotch Thistle side to compare — that is a limit of the record, not a statement that Scotch Thistle has no side effects.

How much people look this up

Where Scotch Thistle and Bezlotoxumab 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 Scotch Thistle
Steady interest

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

29 days ago today
Medication Bezlotoxumab
Steady interest

#1,962 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. Scotch Thistle is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Scotch Thistle reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Scotch Thistle and Bezlotoxumab records this page draws on were last updated June 22, 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 Scotch Thistle

What is Scotch Thistle?

Scotch Thistle
  • Digestive upset
  • Liver and gallbladder support
  • Mild diuretic
  • Skin sores and wound care (traditional/topical)
  • General tonic

Scotch Thistle is a tall, spiny plant used in folk medicine for digestion, liver complaints, and as a mild diuretic, but there is very little modern scientific evidence to support these uses. Because reliable safety and dosing information is lacking, it is best to talk with a pharmacist or doctor before trying it, and to avoid it during pregnancy and breastfeeding.

Onopordum acanthium · Asteraceae · Aerial parts (flowers, leaves, stems) and roots; sometimes seeds · Tea (dried herb infusion), tincture, capsules, dried herb

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

Scotch Thistle: dosing

There is no established, standardized dose for Scotch Thistle. Because it has not been well studied in people, safe and effective amounts are simply not known.If you choose to use a commercial product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Scotch Thistle monograph & all interactions
Medication

About Bezlotoxumab Injection

What Is Bezlotoxumab Injection Used For?

Brand name: Zinplava

Zinplava is used to reduce the chance that a Clostridioides difficile (C. diff) infection will come back. It is approved for adults and children 1 year of age and older who are already taking an antibiotic to treat an active C. diff infection and who are considered high-risk for the infection returning.

Important: Zinplava is not a treatment for C. diff on its own — it does not replace antibiotics. It must always be used alongside antibiotic treatment for C. diff, never instead of it.

Most-Reported Side Effects for Bezlotoxumab

From FAERS, the FDA’s public side-effect reporting system (349 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Clostridium difficile infection 128 reports
Treatment failure 43 reports
Diarrhea 29 reports
Clostridium difficile colitis 21 reports
Fever 18 reports
See full Bezlotoxumab Injection drug information
Keep checking

Other Drugs & Scotch Thistle

Browse every other medication we’ve checked against Scotch Thistle — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Scotch Thistle References

The 2 sources that drive our Scotch Thistle monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Scotch Thistle is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs and Supplements — MedlinePlus (U.S. National Library of Medicine) Source
  2. Using Dietary Supplements Wisely — NIH National Center for Complementary and Integrative Health (NCCIH) Source

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 Scotch Thistle and Bezlotoxumab Together: Common Questions

Is it safe to take Scotch Thistle with Bezlotoxumab?
We do not list a known interaction between Scotch Thistle and Bezlotoxumab. 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.

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

Still Have a Question About Bezlotoxumab and Scotch Thistle?

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.