Drug & supplement interaction

Kratom + Valsartan

Valsartan brand names: Diovan, Prexxartan.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Kratom 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

Kratom 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 Kratom 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.

Kratom safety at a glance

Kratom overall Avoid Kratom carries risks of dependence, serious side effects, and contaminated products, and is not regulated as a safe supplement.
Pregnancy Possibly Unsafe When used orally. There have been multiple case reports of neonatal abstinence syndrome in the infants of those who used kratom during pregnancy. Animal researc... Read the full pregnancy detail
Breastfeeding Avoid Kratom compounds may pass into breast milk and should be avoided while nursing.

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 Kratom? 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. Kratom has documented interactions with 11 drug classes — the most serious being cns depressants (moderate), cytochrome p450 1a2 (cyp1a2) substrates (moderate) and cytochrome p450 2d6 (cyp2d6) 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

Kratom Does Interact With Other Medications

Kratom has 983 moderate, 12 minor known drug interactions in our database — Valsartan isn’t one of them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against Kratom

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

What to actually watch for

No Interaction Found — But Data Suggests Kratom 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. 2 of them are worth acting on rather than waiting out — marked below.

  • High potassium Worth acting on Additional detail

    Kratom

    “Orally, kratom has been associated with frequent urination, electrolyte abnormalities, and renal insufficiency,. In one case report, a 61-year-old male with no significant past medical history experienced persistent asymptomatic hyperkalemia after 4 months of regular, nearly daily use of kratom. Potassium levels normalized upon discontinuation of kratom.”

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

    6 sources cited
    1. 27130. Jansen KL, Prast CJ. Ethnopharmacology of kratom and the Mitragyna alkaloids. J Ethnopharmacol 1988;23(1):115-119. PubMed
    2. 27136. US Food and Drug Administration (2014). SNI National is Voluntarily recalling Kratom XL 4 Pack, Maeng Da Kratom 10 Pack, Max Kratom 20 Pack, and Bali Kratom 40 pack Due to Undeclared Drug Ingredients [Press Release].
    3. 95797. Castillo A, Payne JD, Nugent K. Posterior reversible leukoencephalopathy syndrome after kratom ingestion. Proc (Bayl Univ Med Cent). 2017;30(3):355-357. PubMed
    4. 108762. Torres-Ortiz A, Al Zein S, Alqudsi M. A Case of Hyperkalemia Induced by Kratom (Mitragyna speciosa). Cureus 2022;14(4):e24036. PubMed
    5. 113066. LeSaint KT, Yin S, Sharma A, Avery BA, McCurdy CR, Waksman JC. Acute Renal Insufficiency Associated With Consumption of Hydrocodone- and Morphine-Adulterated Kratom (Mitragyna Speciosa). J Emerg Med 2022;63(1):e28-e30. PubMed
    6. 113068. Martin G, Collins DP, Valenzuela H. Life-Threatening Hyponatremia Secondary to Chronic Kratom Use: A Case Presentation. Cureus 2022;14(9):e29073. PubMed

    Valsartan

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

  • Raised blood pressure Worth acting on Additional detail

    Kratom

    “In one Poison Control Center report of 3484 exposures to kratom, the majority of which involved oral single-substance exposures, 75% of cases reported neurologic effects, including agitation, coma, confusion, dizziness, drowsiness, hallucinations, seizures, and tremor.”

    Kratom · Natural Medicines adverse-effect record, reported in alcohol-related liver disease.

    6 sources cited
    1. 108565. Graves JM, Dilley JA, Terpak L, et al. Kratom exposures among older adults reported to U.S. poison centers, 2014-2019. J Am Geriatr Soc 2021;69(8):2176-2184. PubMed
    2. 95798. Cumpston KL, Carter M, Wills BK. Clinical outcomes after Kratom exposures: A poison center case series. Am J Emerg Med. 2018;36(1):166-168. PubMed
    3. 101707. Eggleston W, Stoppacher R, Suen K, Marraffa JM, Nelson LS. Kratom Use and Toxicities in the United States. Pharmacotherapy. 2019 Jul;39(7):775-777. doi: 10.1002/phar.2280. Epub 2019 Jun 13. PubMed
    4. 104637. Davidson C, Cao D, King T, et al. A comparative analysis of kratom exposure cases in Thailand and the United States from 2010-2017. Am J Drug Alcohol Abuse. 2020:1-10. PubMed
    5. 113071. Peran D, Stern M, Cernohorsky P, Sykora R, Popela S, Duska F. Mitragyna speciosa (Kratom) poisoning: Findings from ten cases. Toxicon 2023;225:107054. PubMed
    6. 103214. Afzal H, Esang M, Rahman S. A case of kratom-induced seizures. Cureus. 2020;12(1):e6588. PubMed

    Valsartan

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

  • Tiredness reported in 10.0% of FDA reports for Valsartan Additional detail

    Kratom

    “Orally, kratom has been associated with aggression, agitation, altered mental status, anxiety, delusions, depression, hallucinations, insomnia, irritability, paranoia, restlessness, sedation, and suicidal ideation, in case reports and case series.”

    Kratom · Natural Medicines adverse-effect record, reported in anxiety.

    6 sources cited
    1. 27136. US Food and Drug Administration (2014). SNI National is Voluntarily recalling Kratom XL 4 Pack, Maeng Da Kratom 10 Pack, Max Kratom 20 Pack, and Bali Kratom 40 pack Due to Undeclared Drug Ingredients [Press Release].
    2. 95798. Cumpston KL, Carter M, Wills BK. Clinical outcomes after Kratom exposures: A poison center case series. Am J Emerg Med. 2018;36(1):166-168. PubMed
    3. 113067. Li X, Ndungu P, Taneja SB, et al. An evaluation of adverse drug reactions and outcomes attributed to kratom in the US Food and Drug Administration Adverse Event Reporting System from January 2004 through September 2021. Clin Transl Sci 2023.
    4. 113071. Peran D, Stern M, Cernohorsky P, Sykora R, Popela S, Duska F. Mitragyna speciosa (Kratom) poisoning: Findings from ten cases. Toxicon 2023;225:107054. PubMed
    5. 113079. Settle AG, Yang C. A Case of Severe Kratom Addiction Contributing to a Suicide Attempt. Cureus 2022;14(9):e29698. PubMed
    6. 113080. Smith KE, Feldman JD, Dunn KE, et al. Examining the paradoxical effects of kratom: a narrative inquiry. Front Pharmacol 2023;14:1174139. 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 ›

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

    Kratom

    Recorded for Kratom in the same Natural Medicines adverse-effect record shown under Raised blood pressure above.

    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

    Kratom

    “Kratom ingestion has been associated with nausea, vomiting, dry mouth, tongue numbness, increased appetite, and constipation. In one Poison Control Center report of 3484 exposures to kratom, the majority of which involved oral single-substance exposures, 25% of cases reported gastrointestinal effects.”

    Kratom · Natural Medicines adverse-effect record, reported in constipation.

    6 sources cited
    1. 27130. Jansen KL, Prast CJ. Ethnopharmacology of kratom and the Mitragyna alkaloids. J Ethnopharmacol 1988;23(1):115-119. PubMed
    2. 27136. US Food and Drug Administration (2014). SNI National is Voluntarily recalling Kratom XL 4 Pack, Maeng Da Kratom 10 Pack, Max Kratom 20 Pack, and Bali Kratom 40 pack Due to Undeclared Drug Ingredients [Press Release].
    3. 95797. Castillo A, Payne JD, Nugent K. Posterior reversible leukoencephalopathy syndrome after kratom ingestion. Proc (Bayl Univ Med Cent). 2017;30(3):355-357. PubMed
    4. 95818. Trakulsrichai S, Sathirakul K, Auparakkitanon S, et al. Pharmacokinetics of mitragynine in man. Drug Des Devel Ther. 2015;9:2421-9. PubMed
    5. 104637. Davidson C, Cao D, King T, et al. A comparative analysis of kratom exposure cases in Thailand and the United States from 2010-2017. Am J Drug Alcohol Abuse. 2020:1-10. PubMed
    6. 113067. Li X, Ndungu P, Taneja SB, et al. An evaluation of adverse drug reactions and outcomes attributed to kratom in the US Food and Drug Administration Adverse Event Reporting System from January 2004 through September 2021. Clin Transl Sci 2023.

    Valsartan

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

Reported for Kratom but not commonly for Valsartan: liver problems, dependence or withdrawal symptoms, confusion and shortness of breath.

Effects for Valsartan come from the ADVERSE REACTIONS section of its FDA label; effects for Kratom 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

Kratom in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally. There have been multiple case reports of neonatal abstinence syndrome in the infants of those who used kratom during pregnancy. Animal research suggests that kratom crosses the placenta.

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

Overlapping uses

What Valsartan Is Prescribed For, and What Kratom Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Valsartan is a prescription medicine with approved uses on its FDA label. Kratom is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Valsartan is prescribed for: 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.

Read the rest of what Valsartan is prescribed for

Valsartan oral solution is specifically indicated for patients with heart failure or post-heart attack left ventricular dysfunction who are unable to swallow tablets.

Kratom has been studied for:

  • Hypertension studied, not established Kratom has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Kratom for hypertension

    Although there has been interest in using oral kratom for hypertension, there is insufficient reliable information about the clinical effects of kratom for this condition.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Valsartan on your own; if you are taking Kratom for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Kratom 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 Kratom 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 Kratom 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

One more smart check

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

We hold 8 real supplement products containing Kratom, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Kratom. Even though Kratom itself has no known interaction with Valsartan, 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 Kratom 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 Kratom
Top half

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

29 days ago today
Medication Valsartan
Top 5%

#110 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 Kratom reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Kratom 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 Kratom

What is Kratom?

Kratom
  • Pain relief
  • Opioid withdrawal symptoms
  • Anxiety and stress
  • Low energy or fatigue
  • Mood enhancement

Kratom is a Southeast Asian plant whose leaves act on the brain's opioid receptors and can produce both stimulant-like and opioid-like effects. It is not approved or proven safe by health regulators, carries real risks of dependence and serious harm, and its legal status varies widely. Talk to a pharmacist or doctor before considering it.

Mitragyna speciosa · Rubiaceae · Leaves · Dried leaf powder, capsules, tablets, brewed tea, liquid extracts, and concentrated gummies

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

Kratom: dosing

There is no established safe or standardized dose for kratom. The strength of products varies widely, and the amount of active compounds can differ greatly from one batch to another, even within the same brand.Because of these unknowns and the real risks of dependence and harm, we cannot recommend a specific amount. Avoid mixing it with alcohol, opioids, sedatives, or other substances.

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

Read the full Kratom 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 & Kratom

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

0Major
983Moderate
12Minor
1,834No known interaction
Moderate

983 interactions

Showing 60 of 983 moderate interactions — see all 983 on the Kratom page.

Minor

12 interactions

No interaction 1,834 drugs checked — show the list
Evidence & sources

Kratom References

The 77 references that drive our Kratom 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. Singh D, Müller CP, Vicknasingam BK. Kratom (Mitragyna speciosa) dependence, withdrawal symptoms and craving in regular users. Drug Alcohol Depend 2014 Jun 1;139:132-7. PubMed
  2. Backstrom BG, Classon G, Lowenhielm P, Thelander G. [Krypton--new, deadly Internet drug. Since October 2009 have nine young persons died in Sweden]. Lakartidningen 2010;107(50):3196-3197.
  3. Kronstrand R, Roman M, Thelander G, Eriksson A. Unintentional fatal intoxications with mitragynine and O-desmethyltramadol from the herbal blend Krypton. J Anal Toxicol 2011;35(4):242-247. PubMed
  4. Boyer EW, Babu KM, Adkins JE, McCurdy CR, Halpern JH. Self-treatment of opioid withdrawal using kratom (Mitragynia speciosa korth). Addiction 2008;103(6):1048-1050.
  5. Jansen KL, Prast CJ. Ethnopharmacology of kratom and the Mitragyna alkaloids. J Ethnopharmacol 1988;23(1):115-119. PubMed
  6. Nelsen JL, Lapoint J, Hodgman MJ, Aldous KM. Seizure and coma following Kratom (Mitragynina speciosa Korth) exposure. J Med Toxicol 2010;6(4):424-426. PubMed
  7. Sheleg SV, Collins GB. A coincidence of addiction to "Kratom" and severe primary hypothyroidism. J Addict Med 2011;5(4):300-301. PubMed
  8. Kapp FG, Maurer HH, Auwarter V, Winkelmann M, Hermanns-Clausen M. Intrahepatic cholestasis following abuse of powdered kratom (Mitragyna speciosa). J Med Toxicol 2011;7(3):227-231. PubMed
  9. Kong WM, Chik Z, Ramachandra M, et al. Evaluation of the effects of Mitragyna speciosa alkaloid extract on cytochrome P450 enzymes using a high throughput assay. Molecules. 2011;16(9):7344-7356. PubMed
  10. US Food and Drug Administration (2014). SNI National is Voluntarily recalling Kratom XL 4 Pack, Maeng Da Kratom 10 Pack, Max Kratom 20 Pack, and Bali Kratom 40 pack Due to Undeclared Drug Ingredients [Press Release].
  11. Castillo A, Payne JD, Nugent K. Posterior reversible leukoencephalopathy syndrome after kratom ingestion. Proc (Bayl Univ Med Cent). 2017;30(3):355-357. PubMed
  12. Cumpston KL, Carter M, Wills BK. Clinical outcomes after Kratom exposures: A poison center case series. Am J Emerg Med. 2018;36(1):166-168. PubMed
  13. FDA Adverse Event Reporting System: Kratom Deaths. February 6, 2018. https://www.fda.gov/downloads/Drugs/GuidanceComplianceRegulatoryInformation/CDERFOIAElectronicReadingRoom/UCM595575.pdf. Accessed March 6, 2018.
  14. Trakulsrichai S, Sathirakul K, Auparakkitanon S, et al. Pharmacokinetics of mitragynine in man. Drug Des Devel Ther. 2015;9:2421-9. PubMed
  15. Kruegel AC, Grundmann O. The medicinal chemistry and neuropharmacology of kratom: A preliminary discussion of a promising medicinal plant and analysis of its potential for abuse.Neuropharmacology. 2017. pii: S0028-3908(17)30393-3. 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 Kratom and Valsartan Together: Common Questions

Is it safe to take Kratom with Valsartan?
We do not list a known interaction between Kratom 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 Kratom and Valsartan have any of the same side effects?
Yes — our sources link each of them separately to 6 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.
Are Kratom and Valsartan used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Kratom in each. That is a conversation for your prescriber, especially if Valsartan is being adjusted to a target.
How was the Kratom and Valsartan combination checked?
Interactions in our licensed database are recorded against drug classes. Valsartan is filed under 4 classifications, and Kratom has documented interactions with 11 drug classes — 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 Kratom interact with any other medications?
Yes. Kratom has 995 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 — Kratom 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

Still Have a Question About Valsartan and Kratom?

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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.