Drug & supplement interaction

Henna + Finerenone

Finerenone brand name: Kerendia.

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

We found no known interaction between Henna and Finerenone 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

Henna and Finerenone

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 Finerenone and Henna 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.

Henna safety at a glance

Henna overall Use caution Natural henna is generally safe applied to skin and hair, but 'black henna' and oral use can be harmful.
Pregnancy Unsafe When used orally. Henna is believed to have abortifacient properties. There is insufficient reliable information available about the safety of henna when used t... Read the full pregnancy detail
Breastfeeding Unsafe When used orally. Henna is believed to have abortifacient properties. There is insufficient reliable information available about the safety of henna when used t... Read the full breastfeeding detail

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 Finerenone and Henna? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Finerenone

Interactions in our licensed database are recorded against drug classes, not just single drug names. Finerenone is filed under 3 classifications — potassium-sparing diuretics, cytochrome p450 3a4 (cyp3a4) substrates, oral drugs. Henna has documented interactions with 1 drug class — the most serious being lithium (moderate) — and none of Finerenone’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

Henna Does Interact With Other Medications

Henna has 1 moderate known drug interaction in our database — Finerenone isn’t one of them. If you take anything else, check it against the full list below.

Moderate 1 No known interaction 2,829 (incl. Finerenone)
Taking anything else?

Check Another of Your Medications Against Henna

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

What to actually watch for

No Interaction Found — But Data Suggests Henna and Finerenone May Share a Side Effect

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. One of them is worth acting on rather than waiting out — marked below.

  • Kidney problems Worth acting on reported in 22.8% of FDA reports for Finerenone Additional detail

    Henna

    “Orally, henna can cause an upset stomach, possibly due to tannin content (18,104797). Henna has also been linked to rhabdomyolysis, renal injury and failure, hemolytic anemia, and mortality when taken orally.

    Topically, henna can cause contact dermatitis, including redness, itching, burning, swelling, scaling, fissuring, papules, blisters, and scarring.”

    Henna · Natural Medicines adverse-effect record, reported in anemia.

    6 sources cited
    1. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
    2. 104797. Asgari S, Esfandbod M, Haghshomar M. Henna-induced hemolysis and acute kidney injury in an 85-year-old man; A case report. Arch Acad Emerg Med. 2020 Oct 14;8(1):e82.
    3. 100852. Rund D, Schaap T, Da'as N, Ben Yehuda D, Kalish J. Plasma exchange as treatment for Lawsone (henna) intoxication. J Clin Apher. 2007;22(4):243-5. PubMed
    4. 1370. Lyon MJ, Shaw JC. Allergic contact dermatitis reaction to henna. Arch Dermatol 2000;136:124-5. PubMed
    5. 4146. Garcia Ortiz JC, Terron M, Bellido J. Contact allergy to henna. Int Arch Allergy Immunol 1997;114:298-9. PubMed
    6. 6144. Lewin PK. Temporary henna tattoo with permanent scarification. CMAJ 1999;160:310.

    “Topically, henna has been associated with hemolysis, anemia, reticulocytosis, and indirect hyperbilirubinemia in infants and children with glucose 6-phosphate dehydrogenase (G6PD) deficiency.

    Orally, henna might also have this effect in adults, particularly in those with G6PD deficiency.”

    Henna · Natural Medicines adverse-effect record, reported in anemia.

    6 sources cited
    1. 4147. Kandil HH, al-Ghanem MM, Sarwat MA, al-Thallab FS. Henna (Lawsonia inermis Linn.) inducing haemolysis among G6PD-deficient newborns. A new clinical observation. Ann Trop Paediatr 1996;16:287-91. PubMed
    2. 10381. Raupp P, Hassan JA, Varughese M, Kristiansson B. Henna causes life threatening haemolysis in glucose-6-phosphate dehydrogenase deficiency. Arch Dis Child 2001;85:411-2.. PubMed
    3. 100839. Katar S, Devecioglu C, Ozbek MN, Ecer S. Henna causes life-threatening hyperbilirubinaemia in glucose-6-phosphate dehydrogenase deficiency. Clin Exp Dermatol. 2007;32(2):235-6. PubMed
    4. 100840. Kheir A, Gaber I, Gafer S, Ahmed W. Life-threatening haemolysis induced by henna in a Sudanese child with glucose-6-phosphate dehydrogenase deficiency. East Mediterr Health J. 2017;23(1):28-30.
    5. 100852. Rund D, Schaap T, Da'as N, Ben Yehuda D, Kalish J. Plasma exchange as treatment for Lawsone (henna) intoxication. J Clin Apher. 2007;22(4):243-5. PubMed
    6. 104797. Asgari S, Esfandbod M, Haghshomar M. Henna-induced hemolysis and acute kidney injury in an 85-year-old man; A case report. Arch Acad Emerg Med. 2020 Oct 14;8(1):e82.

    Finerenone

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

Reported for Henna but not commonly for Finerenone: an allergic reaction, stomach pain, severe muscle breakdown and stomach upset.

Effects for Finerenone come from the ADVERSE REACTIONS section of its FDA label; effects for Henna come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 2,960 voluntary FDA FAERS reports for Finerenone 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

Henna in Pregnancy & Breastfeeding

Pregnancy And Lactation Unsafe

When used orally. Henna is believed to have abortifacient properties. There is insufficient reliable information available about the safety of henna when used topically; avoid using.

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 Henna or Finerenone

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

This page covers Henna only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Finerenone page lists 146 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 101 moderate · 42 minor.

From our pharmacist’s overview on the Finerenone page

“Kerendia (finerenone) protects the kidneys and heart in people with type 2 diabetes and chronic kidney disease, and because the body clears it through one main enzyme, CYP3A4, its supplement list calls for genuine care. Of the 146 ingredients on file, 121 can push that enzyme up or down, letting finerenone drift too high or too low.”

Reviewed by 2 · Jul 18, 2026

Open the Finerenone interaction page

One more smart check

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

We hold 9 real supplement products containing Henna, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Henna. Even though Henna itself has no known interaction with Finerenone, 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 Henna and Finerenone 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 Henna
Steady interest

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

29 days ago today
Medication Finerenone
Steady interest

#2,437 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 Henna reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Henna and Finerenone records this page draws on were last updated July 10, 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 Henna

What is Henna?

  • Hair and skin dye
  • Cooling and skin care
  • Wound and skin healing (traditional)
  • Antimicrobial and antifungal (traditional)
  • Nail and scalp conditions

Henna is a plant most widely used as a natural dye for hair, skin, and nails, and has a long history in traditional medicine for skin and minor wound care. Strong human evidence for medicinal benefits is limited, and pure (natural) henna applied to skin is generally well tolerated, but so-called 'black henna' products can cause serious skin reactions. Talk to a pharmacist or doctor before using henna for any health purpose, and avoid taking it by mouth.

Lawsonia inermis · Lythraceae · Leaves (also bark, seeds, and flowers in traditional use) · Dried leaf powder, paste, oil, and occasionally extracts; mostly used topically for hair and skin

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

Henna: dosing

There is no established medicinal dose for henna. It is mainly used externally as a paste or powder for dyeing hair, skin, and nails, and the amount used depends on the cosmetic purpose.If you choose to use a henna product, follow the directions on the label and choose pure, natural henna from a reputable source. Avoid products labeled or sold as 'black henna' because of the risk of serious reactions.Henna should not be taken by mouth.

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

Read the full Henna monograph & all interactions
Medication

About Finerenone

What Is Finerenone Used For?

Brand name: Kerendia

Kerendia (finerenone) is used in adults with chronic kidney disease (CKD) linked to type 2 diabetes. It helps reduce the risk of kidney function decline, end-stage kidney disease, cardiovascular death, non-fatal heart attack, and hospitalization for heart failure in these patients.

Kerendia is also used in adults with heart failure who have a left ventricular ejection fraction (LVEF) — a measure of how well the heart pumps — of 40% or higher. In this group, it reduces the risk of cardiovascular death, hospitalization for heart failure, and urgent heart failure visits.

Most-Reported Side Effects for Finerenone

From FAERS, the FDA’s public side-effect reporting system (2,960 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Glomerular filtration rate decreased 308 reports
Hyperkalaemia 261 reports
Blood creatinine increased 226 reports
Blood potassium increased 180 reports
Renal impairment 140 reports
See full Finerenone drug information
Keep checking

Other Drugs & Henna

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

0Major
1Moderate
0Minor
2,828No known interaction
1 Moderate 2,828 No interaction
Moderate

1 interaction

No interaction 2,828 drugs checked — show the list

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

Showing the 60 most looked-up of 2,828 medications checked with no known interaction — see the full Henna list.

See the full Henna interactions page
See every supplement checked against Finerenone, ranked by severity
Evidence & sources

Henna References

The 30 references that drive our Henna 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. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Lyon MJ, Shaw JC. Allergic contact dermatitis reaction to henna. Arch Dermatol 2000;136:124-5. PubMed
  4. Garcia Ortiz JC, Terron M, Bellido J. Contact allergy to henna. Int Arch Allergy Immunol 1997;114:298-9. PubMed
  5. Kandil HH, al-Ghanem MM, Sarwat MA, al-Thallab FS. Henna (Lawsonia inermis Linn.) inducing haemolysis among G6PD-deficient newborns. A new clinical observation. Ann Trop Paediatr 1996;16:287-91. PubMed
  6. Majoie IM, Bruynzeel DP. Occupational immediate-type hypersensitivity to henna in a hairdresser. Am J Contact Dermat 1996;7:38-40. DOI
  7. Lewin PK. Temporary henna tattoo with permanent scarification. CMAJ 1999;160:310.
  8. Lestringant GG, Bener A, Frossard PM. Cutaneous reactions to henna and associated additives. Br J Dermatol 1999;141:598-600. PubMed
  9. Etienne A, Piletta P, Hauser C, Pasche-Koo F. Ectopic contact dermatitis from henna. Contact Dermatitis 1997;:183. PubMed
  10. Wantke F, Gotz M, Jarisch R. Contact dermatitis due to henna, solvent red 1 and solvent red 3, a case report. Contact Dermatitis 1992;27:346-7. PubMed
  11. Nigam PK, Saxena AK. Allergic contact dermatitis from henna. Contact Dermatitis 1988;18:55-6. PubMed
  12. Gupta BN, Mathur AK, Agarwal C, Singh A. Contact sensitivity to henna. Contact Dermatitis 1986;15:303-4. PubMed
  13. Pasricha JS, Gupta R, Panjwani S. Contact dermatitis to henna (Lawsonia). Contact Dermatitis 1980;6:288-9. PubMed
  14. Cronin E. Immediate type hypersensitivity to henna. Contact Dermatitis 1979;5:198-9. PubMed
  15. Raupp P, Hassan JA, Varughese M, Kristiansson B. Henna causes life threatening haemolysis in glucose-6-phosphate dehydrogenase deficiency. Arch Dis Child 2001;85:411-2.. 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 Henna and Finerenone Together: Common Questions

Is it safe to take Henna with Finerenone?
We do not list a known interaction between Henna and Finerenone. 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 Henna and Finerenone have any of the same side effects?
Yes — our sources link each of them separately to one 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 Henna and Finerenone combination checked?
Interactions in our licensed database are recorded against drug classes. Finerenone is filed under 3 classifications, and Henna has documented interactions with 1 drug class — none of Finerenone'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 Henna interact with any other medications?
Yes. Henna has 1 documented drug interaction in our database — Finerenone 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 Finerenone interact with any supplements?
Yes. Finerenone has documented interactions with 146 supplements in our database — Henna is not one of them. The Finerenone 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

Henna monograph Uses, safety profile, and every drug interaction in one place Finerenone drug information The full plain-English guide to this medication Finerenone supplement interactions Every supplement checked against Finerenone, 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 30 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Finerenone and Henna?

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.