Herb & supplement monograph

Cyclamen Drug Interactions, Uses, Effectiveness, Safety & More

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Interaction report

Drugs that interact with Cyclamen

0 medications have a known interaction with Cyclamen, graded by severity. Select any drug for the full evidence-based detail.

We don’t currently list any known drug interactions for Cyclamen. This doesn’t guarantee none exist — always confirm with your pharmacist before combining supplements with your medications.

Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each drug listed above links to the full report for that exact Cyclamen combination — clinical detail, likelihood, evidence level, and citations.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Monograph

Cyclamen: Uses, Safety & Side Effects

The bottom line

Cyclamen is an ornamental plant whose tuber contains potentially toxic compounds called saponins. It has been studied mostly as a nasal preparation for sinus congestion, but evidence is limited and the raw plant can be poisonous, so it should not be used without professional guidance.

Scientific name
Cyclamen europaeum
Family
Primulaceae
Part used
Tuber (root); sometimes leaves and flowers
Common forms
Homeopathic preparations, nasal sprays/extracts (in some regions), and rarely tinctures
People commonly use it for
  • Sinus congestion (sinusitis)
  • Headache and migraine (traditional/homeopathic)
  • Menstrual complaints (traditional use)
  • Digestive complaints (traditional use)

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance
OverallUse caution

The raw plant, especially the tuber, is toxic and should not be consumed; only specific prepared products may be appropriate.

PregnancyLikely Unsafe

When used orally; avoid using.

Read the full pregnancy detail
BreastfeedingLikely Unsafe

When used orally; avoid using.

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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Overview

Cyclamen is a flowering plant in the primrose family, often grown as a houseplant or garden ornamental for its colorful, swept-back petals. It grows from a round underground tuber and is native to parts of Europe, the Mediterranean region, and the Middle East.

In folk medicine, the tuber has been used for sinus and breathing problems, headaches, and other complaints. Today, the most common modern use is in certain nasal preparations and in homeopathic remedies. It is important to know that the natural tuber is considered poisonous, so cyclamen is not something to make or take at home.

How it works

Cyclamen tubers contain compounds called triterpenoid saponins. These substances can irritate mucous membranes, which is thought to be how cyclamen nasal preparations trigger the nose and sinuses to produce and release more mucus, helping clear congestion.

These same saponins are also what make the raw plant toxic if swallowed. Most of what is known about how cyclamen works comes from laboratory studies and small clinical trials, so the details are still not fully understood.

Effectiveness

Does Cyclamen work?

Evidence overview · 1 use evaluated
1 Insufficient evidence
How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.
2Likely EffectiveGood evidence, though not yet conclusive.
3Possibly EffectiveSome evidence suggests a benefit.
4Possibly IneffectiveSome evidence it may not help.
5Likely IneffectiveFairly strong evidence it doesn’t help.
6IneffectiveStrong evidence it doesn’t work.
7Insufficient Reliable Evidence to RateToo little research to say either way.

For Cyclamen, current evidence isn’t strong enough to rate any specific use. The conditions it has been studied for are listed below.

Also studied for 1 condition — evidence insufficient to rate
Insufficient Reliable Evidence To Rate Rhinosinusitis
Rating & evidence shown verbatim from Natural Medicines

Preliminary clinical research shows that using a nasal spray containing cyclamen root extract 1.3 mg per spray (Sinuforte Nasal Spray, Hartington Pharmaceutical), given as one spray in each nostril daily for 15 days, reduces facial pain, mucosal edema, and sinus opacification on CT scan when compared with placebo in adults with acute rhinosinusitis. However, cyclamen nasal spray does not reduce overall symptom score when compared with placebo.

Source & disclaimer. Effectiveness ratings and evidence summaries are provided by Natural Medicines (Therapeutic Research Center) and shown as licensed. Where Natural Medicines hasn’t rated a use, HelloPharmacist’s pharmacists may add their own reviewed rating and evidence (each such entry is labeled). This is educational information, not medical advice — talk with your pharmacist or doctor before starting, stopping, or changing a supplement.

Safety & precautions

The raw cyclamen plant—especially the tuber—is considered poisonous. Eating it can cause vomiting, diarrhea, and other harmful effects. For this reason, you should never prepare your own cyclamen remedy or eat any part of the plant.

Only standardized, professionally manufactured products (such as certain nasal preparations or properly diluted homeopathic remedies) should ever be considered, and even then only with guidance from a healthcare professional. Keep the plant out of reach of children and pets, as it is also toxic to dogs and cats.

Because of toxicity concerns and a traditional reputation for affecting the uterus, cyclamen should be avoided during pregnancy. It should also be avoided while breastfeeding because there is no reliable safety information. People with allergies to plants in the primrose family should also be cautious.

Side effects

With nasal cyclamen preparations, common side effects can include a burning or stinging feeling in the nose, sneezing, watery eyes, and a runny nose. These effects come from the irritant action of the plant's saponins.

If the plant is swallowed, it can cause more serious problems such as nausea, vomiting, stomach cramps, and diarrhea, and in larger amounts it may affect the heart and nervous system. Skin contact with the plant may cause irritation in some people. Seek medical help right away if someone eats any part of the plant.

Cyclamen: Reported Adverse Effects

Documented safety reports on Cyclamen from the evidence-graded Natural Medicines (TRC Healthcare) database, shown word-for-word from the licensed record.

Orally, cyclamen has been reported to cause stomach pain, nausea, vomiting, and diarrhea at doses as low as 300 mg. Higher doses can cause poisoning, with symptoms including spasm and asphyxiation.

Intranasally, cyclamen seems to be generally well tolerated. Side effects reported in clinical trials include nasal irritation, sneezing, and rhinorrhea.

  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  2. Jaspersen-Schib R, Theus L, Guirguis-Oeschger M, et al. [Serious plant poisonings in Switzerland 1966-1994. Case analysis from the Swiss Toxicology Information Center]. Schweiz Med Wochenschr 1996;126:1085-98.
  3. Pfaar O, Mullol J, Anders C, Hörmann K, Klimek L. Cyclamen europaeum nasal spray, a novel phytotherapeutic product for the management of acute rhinosinusitis: a randomized double-blind, placebo-controlled trial. Rhinology 2012;50(1):37-44. doi: 10.4193/Rh
  4. Ponikau JU, Hamilos DL, Barreto A, et al. An exploratory trial of Cyclamen europaeum extract for acute rhinosinusitis. Laryngoscope 2012;122(9):1887-92. doi: 10.1002/lary.23366.
Reports by condition
Diarrhea Gastrointestinal

Orally, cyclamen at doses of 300 mg or higher can cause stomach pain, nausea, vomiting, and diarrhea.

  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
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.

Adverse-effects data: Natural Medicines, Therapeutic Research Center

Dosing

There is no well-established, standardized dose of cyclamen for general use. Because the plant is toxic, dosing should never be guessed or self-made.

If you use a commercial product, such as a nasal preparation or homeopathic remedy, follow the directions on the label exactly and do not exceed the recommended amount. Always check with a pharmacist or doctor before using any cyclamen product to make sure it is appropriate and safe for you.

Pregnancy & Breastfeeding

Cyclamen & Pregnancy

Likely Unsafe

When used orally; avoid using.

  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

Cyclamen & Breastfeeding

Likely Unsafe

When used orally; avoid using.

  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
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

Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center

References & further reading

The 4 references that drive our Cyclamen 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. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  2. Jaspersen-Schib R, Theus L, Guirguis-Oeschger M, et al. [Serious plant poisonings in Switzerland 1966-1994. Case analysis from the Swiss Toxicology Information Center]. Schweiz Med Wochenschr 1996;126:1085-98.
  3. Pfaar O, Mullol J, Anders C, Hörmann K, Klimek L. Cyclamen europaeum nasal spray, a novel phytotherapeutic product for the management of acute rhinosinusitis: a randomized double-blind, placebo-controlled trial. Rhinology 2012;50(1):37-44. doi: 10.4193/Rh DOI
  4. Ponikau JU, Hamilos DL, Barreto A, et al. An exploratory trial of Cyclamen europaeum extract for acute rhinosinusitis. Laryngoscope 2012;122(9):1887-92. doi: 10.1002/lary.23366.
Keep reading

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.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Pharmacist Counseling Corner

Cyclamen: Common Questions

What is Cyclamen used for, and does it work?
People use Cyclamen for a range of reasons, but according to the Natural Medicines database the current clinical evidence is insufficient to confirm it works for the specific conditions it has been studied for. See the graded list on this page, and talk to your pharmacist or doctor before relying on it for any condition.
Does Cyclamen interact with prescription medications?
We do not currently list any known drug interactions for Cyclamen. This does not guarantee that none exist, so always confirm with your pharmacist before combining it with your medications.
How are Cyclamen interactions rated?
Each interaction is graded major, moderate, or minor based on how clinically significant it is and the strength of the evidence behind it. Major interactions are the most serious and are best avoided, or used only under close professional supervision.
Is it safe to take Cyclamen with my medications?
It depends on the specific medication. Some combinations are fine, while others call for monitoring, timing changes, or should be avoided. Check your exact drug above and confirm with your pharmacist or doctor before starting, stopping, or changing anything.
Where does this Cyclamen interaction information come from?
Our interaction data is built on the Natural Medicines database — an evidence-graded reference for vitamins, herbs, and supplements — and is reviewed by licensed HelloPharmacist pharmacists, who may add clinical context.
Is Cyclamen safe to take?
The natural plant, especially the tuber, is poisonous and should never be eaten. Only professionally made products should be considered, and only with advice from a healthcare provider.
What is Cyclamen used for?
It is most often used in nasal preparations for sinus congestion, and traditionally for headaches and other complaints. Evidence for most of these uses is limited.
Can I use Cyclamen if I am pregnant or breastfeeding?
No. Cyclamen should be avoided during pregnancy and breastfeeding because of its toxic potential and lack of safety data.
Is the Cyclamen houseplant the same as the medicinal one?
They are closely related, but the common houseplant is grown for decoration and is toxic if eaten. Do not try to make a remedy from a houseplant.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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