Drug & supplement interaction

Clivers + Benzonatate

Benzonatate brand names: Tessalon, Tessalon Perles.

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

We found no known interaction between Clivers and Benzonatate 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

Clivers and Benzonatate

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 Benzonatate and Clivers 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 Clivers at all — not against Benzonatate, 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.

Clivers safety at a glance

Clivers overall Use caution Generally considered low-risk in food-like amounts, but human safety data are limited.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid No reliable safety data exist, so avoid use while breastfeeding.

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

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

What Benzonatate’s Own FDA Label Lists

This is not an interaction — none of it involves Clivers. These are the most notable effects listed in the ADVERSE REACTIONS section of Benzonatate’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. 4 of them are worth acting on rather than waiting out — marked below.

  • Hallucinations Worth acting on
  • Wheezing Worth acting on
  • Confusion Worth acting on
  • An allergic reaction Worth acting on
  • A stuffy or runny nose
  • Numbness or tingling
  • Drowsiness
  • Stomach upset
  • Constipation
  • Itching

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 Benzonatate. Read the label on DailyMed › Clivers’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Clivers side to compare — that is a limit of the record, not a statement that Clivers has no side effects.

From our Q&A

Questions About Clivers or Benzonatate

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

This page covers Clivers only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Benzonatate page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Benzonatate page

“If you take benzonatate (Tessalon) for cough, give this page real attention, starting with activated charcoal. It is the only major-rated entry of the 17 on file, and charcoal can soak up the drug in your gut before it ever reaches your bloodstream.”

Reviewed by 2 · Jul 18, 2026

Open the Benzonatate interaction page

One more smart check

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

We hold 17 real supplement products containing Clivers, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Clivers. Even though Clivers itself has no known interaction with Benzonatate, 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 Clivers and Benzonatate 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 Clivers
Steady interest

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

29 days ago today
Medication Benzonatate
Top half

#1,080 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.
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Clivers and Benzonatate 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 Clivers

What is Clivers?

  • Supporting urinary tract and 'cleansing'
  • Mild swelling or fluid retention (diuretic use)
  • Skin conditions like eczema and psoriasis
  • Swollen lymph glands
  • Minor wounds and skin irritation (topical)

Clivers (Galium aparine) is a common wild plant used in traditional herbal medicine mainly as a 'cleansing' herb, mild diuretic, and skin remedy. Strong human evidence for these uses is lacking, so its benefits remain unproven. Talk to your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding because safety is not established.

Galium aparine · Rubiaceae · Aerial parts (the leaves, stems, and flowering tops gathered above ground) · Tea (infusion), tincture, fresh juice, capsules, and topical preparations

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

Clivers: dosing

There is no official, well-studied standardized dose for clivers. Traditional use varies widely depending on whether it is taken as a tea, tincture, or fresh juice, and product strengths differ from brand to brand.The safest approach is to follow the directions on the product label and not exceed the suggested amount.

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

Read the full Clivers monograph & all interactions
Medication

About Benzonatate

What Is Benzonatate Used For?

Brand names: Tessalon, Tessalon Perles

Benzonatate capsules are used for the symptomatic relief of cough. This applies to all benzonatate capsule products — including Benzonatate 100 mg and Benzonatate 200 mg formulations taken by mouth.

It is intended to reduce the urge to cough when coughing is disruptive or uncomfortable. It does not treat the underlying cause of the cough.

See full Benzonatate drug information
Keep checking

Other Drugs & Clivers

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

See the full Clivers interactions page
See every supplement checked against Benzonatate, ranked by severity
Sources

Sources & How We Checked

We checked Clivers against Benzonatate in the Natural Medicines interaction database and found no documented interaction on file. The medication overview comes from MedlinePlus, and supplement label details from the NIH Dietary Supplement Label Database.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Clivers monograph › Uses, safety, and every drug interaction in one place Benzonatate supplement interactions › Every supplement checked against Benzonatate, ranked by severity Benzonatate drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Clivers and Benzonatate Together: Common Questions

Is it safe to take Clivers with Benzonatate?
We do not list a known interaction between Clivers and Benzonatate. 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 Benzonatate interact with any supplements?
Yes. Benzonatate has documented interactions with 17 supplements in our database — Clivers is not one of them. The Benzonatate interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Benzonatate and Clivers?

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.