Drug & supplement interaction

Lovage + Losartan Potassium

Losartan Potassium brand name: Cozaar.

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 Lovage and Losartan Potassium 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

Lovage and Losartan Potassium

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 Losartan Potassium and Lovage 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.

Lovage safety at a glance

Lovage overall Use caution Food amounts are generally well tolerated, but concentrated extracts and essential oil need caution and have limited safety data.
Pregnancy Likely Unsafe When used orally; lovage is reported to have uterine and menstrual stimulant effects . Read the full pregnancy detail
Breastfeeding Avoid Not enough safety data, so it is best avoided 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 Losartan Potassium and Lovage? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Losartan Potassium

Interactions in our licensed database are recorded against drug classes, not just single drug names. Losartan Potassium is filed under 7 classifications — including angiotensin receptor blockers (arbs), cytochrome p450 2c9 (cyp2c9) substrates, antihypertensive drugs. Lovage has documented interactions with 1 drug class — the most serious being diuretic drugs (moderate) — and none of Losartan Potassium’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

Lovage Does Interact With Other Medications

Lovage has 75 moderate known drug interactions in our database — Losartan Potassium isn’t one of them. If you take anything else, check it against the full list below.

Moderate 75 No known interaction 2,755 (incl. Losartan Potassium)
Taking anything else?

Check Another of Your Medications Against Lovage

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

What to actually watch for

No Interaction Found — But Data Suggests Lovage and Losartan Potassium 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.

  • Sun sensitivity / A skin rash Additional detail

    Lovage

    “A high-quality assessment of the adverse effects of lovage has not been conducted. However, long-term oral use of lovage may result in an increased risk of phototoxic reactions, including photosensitivity (2,5,6,8,11,12). Topical exposure may also result in photosensitivity or contact dermatitis.”

    Lovage · Natural Medicines adverse-effect record, reported in dermatitis.

    6 sources cited
    1. 2. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
    2. 5. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
    3. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    4. 8. Wichtl MW. Herbal Drugs and Phytopharmaceuticals. Ed. N.M. Bisset. Stuttgart: Medpharm GmbH Scientific Publishers, 1994.
    5. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
    6. 12. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.

    “Orally, long-term use of lovage may result in an increased risk of phototoxic reactions, including photosensitivity (2,5,6,8,11,12). Avoid excessive exposure to the sun or UV light if using lovage (2,12). A case of contact dermatitis has been reported in a 31-year-old female who applied undiluted lovage essential oil to the skin for 2 weeks. The skin healed after receiving topical and systemic steroids.”

    Lovage · Natural Medicines adverse-effect record, reported in dermatitis.

    6 sources cited
    1. 2. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
    2. 5. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
    3. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    4. 8. Wichtl MW. Herbal Drugs and Phytopharmaceuticals. Ed. N.M. Bisset. Stuttgart: Medpharm GmbH Scientific Publishers, 1994.
    5. 11. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
    6. 12. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.

    Losartan Potassium

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

Effects for Losartan Potassium come from the ADVERSE REACTIONS section of its FDA label; effects for Lovage come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 89,498 voluntary FDA FAERS reports for Losartan Potassium 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

Lovage in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally; lovage is reported to have uterine and menstrual stimulant effects .

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 Losartan Potassium Is Prescribed For, and What Lovage Has Been Studied For

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

Losartan Potassium is prescribed for: Losartan tablets — available as branded Cozaar and several generic products — are used to treat high blood pressure (hypertension) in adults and children 6 years and older. Lowering blood pressure reduces the risk of strokes and heart attacks. Losartan tablets are also used to reduce the risk of stroke in people with high blood pressure who also have left ventricular hypertrophy (an enlarged left side of the heart). Note: evidence suggests this stroke-risk benefit may not apply to Black patients.

Read the rest of what Losartan Potassium is prescribed for

Losartan tablets are additionally approved to protect the kidneys in people with type 2 diabetes, high blood pressure, and signs of kidney damage (diabetic nephropathy). Arbli, the oral suspension form, shares these same approved uses.

Lovage has been studied for:

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

    Lovage for diabetic nephropathy

    Preliminary clinical research shows that taking a specific combination tablet containing lovage root, centaury herb, and rosemary leaf (Canephron N, Bionorica), as two tablets three times daily for 6 months in conjunction with antidiabetes medication and enalapril 20 mg daily, reduces microalbuminuria by 73% and the albumin to creatinine ratio by 46%, increases high-density lipoprotein (HDL) cholesterol by 25%, and l…

    1 source cited
    1. 91726. Martynyuk L, Martynyuk L, Ruzhitska O, Martynyuk O. Effect of the herbal combination Canephron N on diabetic nephropathy in patients with diabetes mellitus: results of a comparative cohort study. J Altern Complement Med. 2014;20(6):472-478. PubMed

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 Losartan Potassium on your own; if you are taking Lovage for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Lovage or Losartan Potassium

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

This page covers Lovage only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Losartan Potassium page lists 253 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), Grapefruit (major) and St. John's Wort (major).

By severity: 6 major · 205 moderate · 42 minor.

From our pharmacist’s overview on the Losartan Potassium page

“Losartan potassium (Cozaar) treats high blood pressure, and this is a list to respect, because six of its 253 supplement interactions carry a major rating. Most entries do one of two things.”

Reviewed by 2 · Jul 18, 2026

Open the Losartan Potassium interaction page

One more smart check

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

We hold 57 real supplement products containing Lovage, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lovage. Even though Lovage itself has no known interaction with Losartan Potassium, 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 Lovage and Losartan Potassium 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 Lovage
Top half

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

29 days ago today
Medication Losartan Potassium
Top 1%

#15 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 Lovage reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lovage and Losartan Potassium 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 Lovage

What is Lovage?

  • Digestive upset and bloating
  • Mild urinary tract flushing
  • Water retention (mild diuretic)
  • Coughs and congestion
  • Menstrual discomfort
  • Culinary flavoring

Lovage is a celery-like herb traditionally used for digestion, bloating, and as a mild diuretic to flush the urinary tract. Human evidence for these uses is very limited, and while culinary amounts are generally well tolerated, concentrated supplements and the essential oil should be used cautiously. Pregnant and breastfeeding people should avoid it.

Levisticum officinale · Apiaceae · Root, leaves, seeds, and essential oil · Tea, capsules, tincture, dried root, essential oil, culinary herb

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

Lovage: dosing

There is no well-established or standardized dose of lovage for any health condition. Traditional preparations include teas made from the dried root or leaves, capsules, and tinctures, with amounts varying widely by product.The best approach is to follow the directions on the product label and not exceed the recommended amount. The essential oil is very concentrated and should not be taken by mouth without professional guidance.

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

Read the full Lovage monograph & all interactions
Medication

About Losartan

What Is Losartan Used For?

Brand name: Cozaar

Losartan treats high blood pressure (hypertension) in adults and children 6 years and older. Keeping blood pressure under control lowers the risk of serious events like stroke and heart attack.

It is also used to reduce the risk of stroke in people who have high blood pressure and left ventricular hypertrophy (an enlarged heart muscle). Note: evidence suggests this stroke-risk benefit may not apply to Black patients. Additionally, losartan treats diabetic nephropathy — kidney damage caused by type 2 diabetes — in people who also have high blood pressure.

Most-Reported Side Effects for Losartan Potassium

From FAERS, the FDA’s public side-effect reporting system (89,498 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 6,464 reports
Nausea 5,301 reports
Diarrhea 5,184 reports
Dyspnea 4,689 reports
Dizziness 4,429 reports
See full Losartan drug information
Keep checking

Other Drugs & Lovage

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

0Major
75Moderate
0Minor
2,754No known interaction
75 Moderate 2,754 No interaction
Moderate

75 interactions

Showing 60 of 75 moderate interactions — see all 75 on the Lovage page.

No interaction 2,754 drugs checked — show the list

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

Showing the 60 most looked-up of 2,754 medications checked with no known interaction — see the full Lovage list.

See the full Lovage interactions page
See every supplement checked against Losartan Potassium, ranked by severity
Evidence & sources

Lovage References

The 10 references that drive our Lovage 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. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. Wichtl MW. Herbal Drugs and Phytopharmaceuticals. Ed. N.M. Bisset. Stuttgart: Medpharm GmbH Scientific Publishers, 1994.
  5. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  6. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  7. Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.
  8. Ashwood-Smith MJ, Ceska O, Yeoman A, et al. Photosensitivity from harvesting lovage (Levisticum officinale). Contact Dermatitis 1992;26(5):356-357.
  9. Martynyuk L, Martynyuk L, Ruzhitska O, Martynyuk O. Effect of the herbal combination Canephron N on diabetic nephropathy in patients with diabetes mellitus: results of a comparative cohort study. J Altern Complement Med. 2014;20(6):472-478. PubMed
  10. Lapeere H, Boone B, Verhaeghe E, Ongenae K, Lambert J. Contact dermatitis caused by lovage (Levisticum officinalis) essential oil. Contact Dermatitis 2013;69(3):181-2.

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 Lovage and Losartan Potassium Together: Common Questions

Is it safe to take Lovage with Losartan Potassium?
We do not list a known interaction between Lovage and Losartan Potassium. 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 Lovage and Losartan Potassium 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.
Are Lovage and Losartan Potassium 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 Lovage in each. That is a conversation for your prescriber, especially if Losartan Potassium is being adjusted to a target.
How was the Lovage and Losartan Potassium combination checked?
Interactions in our licensed database are recorded against drug classes. Losartan Potassium is filed under 7 classifications, and Lovage has documented interactions with 1 drug class — none of Losartan Potassium'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 Lovage interact with any other medications?
Yes. Lovage has 75 documented drug interactions in our database — Losartan Potassium 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 Losartan Potassium interact with any supplements?
Yes. Losartan Potassium has documented interactions with 253 supplements in our database — Lovage is not one of them. The Losartan Potassium 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

Lovage monograph Uses, safety profile, and every drug interaction in one place Losartan drug information The full plain-English guide to this medication Losartan Potassium supplement interactions Every supplement checked against Losartan Potassium, 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 10 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Losartan Potassium and Lovage?

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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.