Drug & supplement interaction

Chrysanthemum + Orlistat

Orlistat brand names: Xenical, Alli.

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 Chrysanthemum and Orlistat 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

Chrysanthemum and Orlistat

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 Orlistat and Chrysanthemum 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 Chrysanthemum at all — not against Orlistat, 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.

Chrysanthemum safety at a glance

Chrysanthemum overall Use caution Generally well tolerated as a tea, but it can cause allergic reactions in sensitive people.
Pregnancy Avoid Safety during pregnancy has not been established, so it is best avoided unless your doctor approves.
Breastfeeding Avoid There is not enough reliable information on safety while breastfeeding, so caution or avoidance is wise.

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

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

No Interaction Found — But Data Suggests Chrysanthemum and Orlistat 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. 3 of them are worth acting on rather than waiting out — marked below.

  • Wheezing / Hives / An allergic reaction Worth acting on Additional detail

    Chrysanthemum

    “Topically and via occupational exposure, chrysanthemum can cause allergic reactions. Chrysanthemum allergy symptoms can include urticaria, contact dermatitis, eczema, actinic reticuloid photosensitivity dermatitis, pollinosis, rhinoconjunctivitis, and asthma. There are numerous case reports and studies showing that allergies to Chrysanthemum are very common, with an estimated 60% of Europeans being allergic.”

    Chrysanthemum · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).

    6 sources cited
    1. 5552. Kuno Y, Kawabe Y, Sakakibara S. Allergic contact dermatitis associated with photosensitivity, from alantolactone in a chrysanthemum farmer. Contact Dermatitis 1999;40:224-5. PubMed
    2. 5554. deJong NW, Vermeulen AM, van Wijik RG, deGroot H. Occupational allergy caused by flowers. Allergy 1998;53:204-9. PubMed
    3. 5556. Camplimi P, Sertoli A, Fabbri P, Panconesi E. Alantolactone sensitivity in chrysanthemum contact dermatitis. Contact Dermatitis 1978;4:93-102. PubMed
    4. 5557. Bleumink E, Mitchell JC, Geismann TA, Towers GH. Contact hypersensitivity to sesquiterpene lactones in Chrysanthemum dermatitis. Contact Dermatitis 1976;2:81-8.
    5. 6958. Lamminpaa A, Estlander T, Jolanki R, Kanerva L. Occupational allergic contact dermatitis caused by decorative plants. Contact Dermatitis 1996;34:330-5. PubMed
    6. 42842. Kuno, Y., Kawabe, Y., and Sakakibara, S. Allergic contact dermatitis associated with photosensitivity, from alantolactone in a chrysanthemum farmer. Contact Dermatitis 1999;40(4):224-225. PubMed

    Orlistat

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

  • A skin rash Additional detail

    Chrysanthemum

    Recorded for Chrysanthemum in the same Natural Medicines adverse-effect record shown under Wheezing / Hives / An allergic reaction above.

    Orlistat

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

Reported for Chrysanthemum but not commonly for Orlistat: sun sensitivity.

Effects for Orlistat come from the ADVERSE REACTIONS section of its FDA label; effects for Chrysanthemum come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 25,755 voluntary FDA FAERS reports for Orlistat 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.

Overlapping uses

What Orlistat Is Prescribed For, and What Chrysanthemum Has Been Studied For

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

Orlistat is prescribed for: Xenical and prescription-strength orlistat are approved to help obese adults lose weight and keep it off when used with a reduced-calorie diet. They are intended for people with a body mass index (BMI) of 30 or higher, or 27 or higher if other risk factors such as high blood pressure, diabetes, or dyslipidemia (abnormal cholesterol or fat levels in the blood) are present. Alli is the over-the-counter version, approved for weight loss in overweight adults 18 and older when used with a reduced-calorie, low-fat diet and exercise program.

Chrysanthemum has been studied for:

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

    Chrysanthemum for diabetes

    Although there has been interest in using oral chrysanthemum for diabetes, there is insufficient reliable information about the clinical effects of chrysanthemum for this purpose.

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

Everything else you take

See Every Supplement That Interacts With Orlistat

This page covers Chrysanthemum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Orlistat page lists 18 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), Fish Oil (moderate) and Glucomannan (moderate).

By severity: 1 major · 8 moderate · 9 minor.

From our pharmacist’s overview on the Orlistat page

“People who take Orlistat (Xenical, Alli) for weight loss often browse the very supplement aisle where fiber products and fish oil sit, and both show up on this page, so it deserves genuine attention before you mix anything in. Nearly all 18 ingredients on file can change how oral medications absorb from the gut, and the single major-ra…”

Reviewed by 2 · Jul 18, 2026

Open the Orlistat interaction page

One more smart check

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

We hold 28 real supplement products containing Chrysanthemum, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Chrysanthemum. Even though Chrysanthemum itself has no known interaction with Orlistat, 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 Chrysanthemum and Orlistat 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 Chrysanthemum
Steady interest

#1,172 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Orlistat
Top 25%

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

What is Chrysanthemum?

  • Eye irritation and tired eyes
  • Cooling and 'heat-clearing' in traditional Chinese medicine
  • Cold and flu symptoms
  • Headache
  • Soothing/relaxation
  • High blood pressure (traditional use)

Chrysanthemum flowers are most often used as a soothing tea in traditional Chinese medicine and as a folk remedy for eye irritation, colds, and minor inflammation. Solid human evidence for these uses is limited, so it should be seen as a pleasant traditional drink rather than a proven treatment. People allergic to ragweed and related plants, and those who are pregnant or breastfeeding, should be cautious and talk to a pharmacist or doctor first.

Chrysanthemum morifolium · Asteraceae · Flowers (dried flower heads) · Tea, dried flowers, capsules, extracts, topical preparations

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

Chrysanthemum: dosing

There is no official standardized dose for chrysanthemum. It is most often used as a tea made from dried flowers, and supplement strength varies widely between products.If you choose to use it, follow the directions on the product label and start with a small amount to see how you react.

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

Read the full Chrysanthemum monograph & all interactions
Medication

About Orlistat

What Is Orlistat Used For?

Brand names: Xenical, Alli

Xenical and prescription-strength orlistat are approved to help obese adults lose weight and keep it off when used with a reduced-calorie diet. They are intended for people with a body mass index (BMI) of 30 or higher, or 27 or higher if other risk factors such as high blood pressure, diabetes, or dyslipidemia (abnormal cholesterol or fat levels in the blood) are present.

Alli is the over-the-counter version, approved for weight loss in overweight adults 18 and older when used with a reduced-calorie, low-fat diet and exercise program.

Most-Reported Side Effects for Orlistat

From FAERS, the FDA’s public side-effect reporting system (25,755 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Rectal discharge 2,434 reports
Gastrointestinal disorder 2,186 reports
Constipation 1,991 reports
Diarrhea 1,960 reports
Weight increased 1,944 reports
See full Orlistat drug information
Keep checking

Other Drugs & Chrysanthemum

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

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

Chrysanthemum References

The 25 references that drive our Chrysanthemum 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. Kuno Y, Kawabe Y, Sakakibara S. Allergic contact dermatitis associated with photosensitivity, from alantolactone in a chrysanthemum farmer. Contact Dermatitis 1999;40:224-5. PubMed
  2. deJong NW, Vermeulen AM, van Wijik RG, deGroot H. Occupational allergy caused by flowers. Allergy 1998;53:204-9. PubMed
  3. Camplimi P, Sertoli A, Fabbri P, Panconesi E. Alantolactone sensitivity in chrysanthemum contact dermatitis. Contact Dermatitis 1978;4:93-102. PubMed
  4. Bleumink E, Mitchell JC, Geismann TA, Towers GH. Contact hypersensitivity to sesquiterpene lactones in Chrysanthemum dermatitis. Contact Dermatitis 1976;2:81-8.
  5. Lamminpaa A, Estlander T, Jolanki R, Kanerva L. Occupational allergic contact dermatitis caused by decorative plants. Contact Dermatitis 1996;34:330-5. PubMed
  6. Hausen BM. The sensitizing capacity of Compositae plants. III. Test results and cross-reactions in Compositae-sensitive patients. Dermatologica 1979;159:1-11. DOI
  7. Kuno, Y., Kawabe, Y., and Sakakibara, S. Allergic contact dermatitis associated with photosensitivity, from alantolactone in a chrysanthemum farmer. Contact Dermatitis 1999;40(4):224-225. PubMed
  8. Schulz, K. H., Hausen, B. M., Wallhofer, L., and Schmidt-Loffler, P. Chrysanthemum allergy. Pt. II: Experimental studies on the causative agents. Arch.Dermatol.Forsch. 1975;251(3):235-244.
  9. Singhal, V. and Reddy, B. S. Common contact sensitizers in Delhi. J Dermatol 2000;27(7):440-445. PubMed
  10. Kuroume, T., Todokoro, M., Tomidokoro, H., Kanbe, Y., and Matsumura, T. Chrysanthemum pollinosis in Japan. Int.Arch.Allergy Appl.Immunol. 1975;48(6):800-811.
  11. Groenewoud, G. C., de Jong, N. W., Burdorf, A., de Groot, H., and van Wyk, R. G. Prevalence of occupational allergy to Chrysanthemum pollen in greenhouses in the Netherlands. Allergy 2002;57(9):835-840.
  12. Jovanovic, M. and Poljacki, M. [Compositae dermatitis]. Med Pregl. 2003;56(1-2):43-49. PubMed
  13. Hashimoto, Y., Kawada, A., Aragane, Y., and Tezuka, T. Occupational contact dermatitis from chrysanthemum in a mortician. Contact Dermatitis 2003;49(2):106-107. PubMed
  14. Groenewoud, G. C., de Groot, H., and van Wijk, R. G. Impact of occupational and inhalant allergy on rhinitis-specific quality of life in employees of bell pepper greenhouses in the Netherlands. Ann Allergy Asthma Immunol 2006;96(1):92-97. PubMed
  15. Sharma, S. C. and Kaur, S. Airborne contact dermatitis from Compositae plants in northern India. Contact Dermatitis 1989;21(1):1-5. 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 Chrysanthemum and Orlistat Together: Common Questions

Is it safe to take Chrysanthemum with Orlistat?
We do not list a known interaction between Chrysanthemum and Orlistat. 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 Chrysanthemum and Orlistat have any of the same side effects?
Yes — our sources link each of them separately to 4 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 Chrysanthemum and Orlistat 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 Chrysanthemum in each. That is a conversation for your prescriber, especially if Orlistat is being adjusted to a target.
Does Orlistat interact with any supplements?
Yes. Orlistat has documented interactions with 18 supplements in our database — Chrysanthemum is not one of them. The Orlistat 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

Chrysanthemum monograph Uses, safety profile, and every drug interaction in one place Orlistat drug information The full plain-English guide to this medication Orlistat supplement interactions Every supplement checked against Orlistat, 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 25 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Orlistat and Chrysanthemum?

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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.