Drug & supplement interaction

Bog Labrador Tea + Valsartan

Valsartan brand names: Diovan, Prexxartan.

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 Bog Labrador Tea and Valsartan 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.

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Interaction report

Bog Labrador Tea and Valsartan

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 Valsartan and Bog Labrador Tea 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.

Bog Labrador Tea safety at a glance

Bog Labrador Tea overall Use caution Generally used as a mild tea, but it can contain potentially toxic compounds, so use small amounts and avoid strong or prolonged brews.
Pregnancy Unsafe When used orally; bog Labrador tea might induce abortion. Read the full pregnancy detail
Breastfeeding Avoid Safety is unknown; avoid while breastfeeding.

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 Valsartan and Bog Labrador Tea? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Valsartan

Interactions in our licensed database are recorded against drug classes, not just single drug names. Valsartan is filed under 4 classifications — including angiotensin receptor blockers (arbs), cytochrome p450 2c9 (cyp2c9) substrates, antihypertensive drugs. Bog Labrador Tea has documented interactions with 1 drug class — the most serious being cytochrome p450 3a4 (cyp3a4) substrates (moderate) — and none of Valsartan’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

Bog Labrador Tea Does Interact With Other Medications

Bog Labrador Tea has 643 moderate known drug interactions in our database — Valsartan isn’t one of them. If you take anything else, check it against the full list below.

Moderate 643 No known interaction 2,187 (incl. Valsartan)
Taking anything else?

Check Another of Your Medications Against Bog Labrador Tea

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

What to actually watch for

No Interaction Found — But Data Suggests Bog Labrador Tea and Valsartan 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.

  • Dizziness reported in 6.2% of FDA reports for Valsartan Additional detail

    Bog Labrador Tea

    “Orally, bog Labrador tea seems to be generally well tolerated when consumed in small amounts. However, frequent consumption of bog Labrador tea in large quantities can cause vomiting, gastroenteritis, diarrhea, diuresis, and central nervous system depression including symptoms of dizziness, drowsiness, and exhaustion.”

    Bog Labrador Tea · Natural Medicines adverse-effect record, reported in depression.

    3 sources cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    3. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

    “Orally, frequent consumption of bog Labrador tea in large quantities can cause mild central nervous system depression, including symptoms of dizziness, drowsiness and exhaustion. Conversely, bog Labrador tea containing large quantities of the constituent ledol can cause central nervous system excitation in a dose-dependent manner.”

    Bog Labrador Tea · Natural Medicines adverse-effect record, reported in depression.

    3 sources cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    3. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

    Valsartan

    Listed in the ADVERSE REACTIONS section of the FDA label for Valsartan, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

  • Diarrhea Additional detail

    Bog Labrador Tea

    “Orally, bog Labrador tea can cause gastrointestinal irritation resulting in vomiting, gastroenteritis, and diarrhea (6,18,97164).”

    Bog Labrador Tea · Natural Medicines adverse-effect record, reported in diarrhea.

    3 sources cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    3. 97164. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed

    Valsartan

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

Reported for Bog Labrador Tea but not commonly for Valsartan: drowsiness, vomiting, seizures and passing urine more often.

Effects for Valsartan come from the ADVERSE REACTIONS section of its FDA label; effects for Bog Labrador Tea come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 242,792 voluntary FDA FAERS reports for Valsartan that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Bog Labrador Tea in Pregnancy & Breastfeeding

Pregnancy Unsafe

When used orally; bog Labrador tea might induce abortion.

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

From our Q&A

Questions About Bog Labrador Tea or Valsartan

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

This page covers Bog Labrador Tea only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Valsartan page lists 182 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Tyramine (major) and Adrafinil (moderate).

By severity: 4 major · 145 moderate · 33 minor.

From our pharmacist’s overview on the Valsartan page

“Of the 182 supplements and herbs on file for valsartan (Diovan), a medication for high blood pressure and heart failure, most either deepen its blood-pressure-lowering effect or work against it, and the four rated major deserve genuine respect before the rest of the page. Activated charcoal can cut the absorption of oral doses, and the…”

Reviewed by 2 · Jul 18, 2026

Open the Valsartan interaction page

How much people look this up

Where Bog Labrador Tea and Valsartan 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 Bog Labrador Tea
Steady interest

#1,180 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Valsartan
Top 5%

#109 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 Bog Labrador Tea reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Bog Labrador Tea and Valsartan 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 Bog Labrador Tea

What is Bog Labrador Tea?

Bog Labrador Tea
  • Coughs and respiratory complaints
  • Digestive upset and diarrhea
  • Anxiety and stress
  • As a warm beverage
  • Aches and pains (traditional use)

Bog Labrador tea is a wetland shrub whose leaves have long been brewed as a traditional beverage and folk remedy, especially among Indigenous peoples of North America. There is very little human research to confirm any health benefit, and the plant is closely related to species that contain toxic compounds, so it should be used cautiously and in moderation. Pregnant or breastfeeding people should avoid it, and anyone considering it should talk with a pharmacist or doctor first.

Rhododendron groenlandicum · Ericaceae · Leaves (used for tea); essential oil from leaves · Dried leaf tea, infusions, tinctures, essential oil

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

Bog Labrador Tea: dosing

There is no established or standardized dose for Bog Labrador tea. Traditionally, a small amount of dried leaves is steeped in hot water to make a light beverage, and overly strong or long-steeped brews are avoided because of possible toxic compounds.If you choose to use a commercial product, follow the directions on the label and do not exceed them.

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

Read the full Bog Labrador Tea monograph & all interactions
Medication

About Valsartan

What Is Valsartan Used For?

Brand names: Diovan, Prexxartan

Valsartan is used to treat high blood pressure (hypertension) in adults and children, heart failure in adults, and to lower the risk of cardiovascular death in adults who have had a heart attack and have reduced heart function. Lowering blood pressure reduces the risk of stroke and heart attack.

Diovan (valsartan) tablets are approved to treat high blood pressure in children as young as 1 year old. Valsartan tablets (generic) are approved for children 6 years and older. Valsartan oral solution is specifically indicated for patients with heart failure or post-heart attack left ventricular dysfunction who are unable to swallow tablets.

See full Valsartan drug information
Keep checking

Other Drugs & Bog Labrador Tea

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

0Major
643Moderate
0Minor
2,186No known interaction
643 Moderate 2,186 No interaction
Moderate

643 interactions

Showing 60 of 643 moderate interactions — see all 643 on the Bog Labrador Tea page.

No interaction 2,186 drugs checked — show the list

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

Showing the 60 most looked-up of 2,186 medications checked with no known interaction — see the full Bog Labrador Tea list.

See the full Bog Labrador Tea interactions page
See every supplement checked against Valsartan, ranked by severity
Evidence & sources

Bog Labrador Tea References

The 4 references that drive our Bog Labrador Tea 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. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Dampc A, Luczkiewicz M. Bog Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric. 2015;95(8):1577-83. PubMed
  4. Tam TW, Liu R, Saleem A, et al. The effect of Cree traditional medicinal teas on the activity of human cytochrome P450-mediated metabolism. J Ethnopharmacol. 2014;155(1):841-6. 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 Bog Labrador Tea and Valsartan Together: Common Questions

Is it safe to take Bog Labrador Tea with Valsartan?
We do not list a known interaction between Bog Labrador Tea and Valsartan. 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 Bog Labrador Tea and Valsartan have any of the same side effects?
Yes — our sources link each of them separately to 2 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 Bog Labrador Tea and Valsartan combination checked?
Interactions in our licensed database are recorded against drug classes. Valsartan is filed under 4 classifications, and Bog Labrador Tea has documented interactions with 1 drug class — none of Valsartan'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 Bog Labrador Tea interact with any other medications?
Yes. Bog Labrador Tea has 643 documented drug interactions in our database — Valsartan 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 Valsartan interact with any supplements?
Yes. Valsartan has documented interactions with 182 supplements in our database — Bog Labrador Tea is not one of them. The Valsartan 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

Bog Labrador Tea monograph Uses, safety profile, and every drug interaction in one place Valsartan drug information The full plain-English guide to this medication Valsartan supplement interactions Every supplement checked against Valsartan, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Valsartan and Bog Labrador Tea?

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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.