Drug & supplement interaction

Daffodil + Trilaciclib Dihydrochloride

Trilaciclib Dihydrochloride brand name: Cosela.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 27, 2026
The bottom line No known interaction

We found no known interaction between Daffodil and Trilaciclib Dihydrochloride 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

Daffodil and Trilaciclib Dihydrochloride

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 Trilaciclib Dihydrochloride and Daffodil 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 Daffodil at all — not against Trilaciclib Dihydrochloride, 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.

Daffodil safety at a glance

Daffodil overall Avoid All parts of the daffodil are toxic and should not be eaten or used as a homemade supplement.
Pregnancy Likely Unsafe When used orally or topically; avoid using. Read the full pregnancy detail
Breastfeeding Likely Unsafe When used orally or topically; avoid using. 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 Trilaciclib Dihydrochloride and Daffodil? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Daffodil and Trilaciclib Dihydrochloride 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.

  • Headache Additional detail

    Daffodil

    “Daffodil is generally regarded as unsafe for use. Any benefits of therapy may not outweigh the risk of toxicity.

    Serious Adverse Effects (Rare):

    Orally: Irritation and swelling of the mouth, tongue, and throat, and sudden onset of vomiting, diarrhea, and abdominal pain. Large doses have also been reported to cause blurred vision, coma, convulsions, dizziness, headache, hypotension, salivation, sweating, and tremors.”

    Daffodil · Natural Medicines adverse-effect record, reported in cluster headache.

    “Orally, large doses of daffodil can cause toxicity, including dizziness, headache, tremors, convulsions, and coma.”

    Daffodil · Natural Medicines adverse-effect record, reported in cluster headache.

    1 source cited
    1. 101223. Matulkova P, Gobin M, Evans M, et al. Gastro-intestinal poisoning due to consumption of daffodils mistaken for vegetables at commercial markets, Bristol, United Kingdom. Clin Toxicol (Phila) 2012;50(8):788-90. doi: 10.3109/15563650.2012.718350. PubMed

    Trilaciclib Dihydrochloride

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

Reported for Daffodil but not commonly for Trilaciclib Dihydrochloride: sweating, stomach pain, blurred vision and seizures.

Effects for Trilaciclib Dihydrochloride come from the ADVERSE REACTIONS section of its FDA label; effects for Daffodil come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Daffodil in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

When used orally or 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

Everything else you take

See Every Supplement That Interacts With Trilaciclib Dihydrochloride

This page covers Daffodil only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Trilaciclib Dihydrochloride page lists 13 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: American Hellebore (major), Arsenic (major), Cesium (major), Ephedra (major) and Grapefruit (major).

By severity: 6 major · 7 moderate.

From our pharmacist’s overview on the Trilaciclib Dihydrochloride page

“Trilaciclib (Cosela) is an infusion given before chemotherapy to shield bone marrow in people with small cell lung cancer, and its supplement list deserves genuine attention because all 13 flagged ingredients press on the same weak point, the heart's electrical rhythm. Each can lengthen the QT interval, the pause between beats on an EC…”

Reviewed by 2 · Jul 18, 2026

Open the Trilaciclib Dihydrochloride interaction page

How much people look this up

Where Daffodil and Trilaciclib Dihydrochloride 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 Daffodil
Steady interest

#1,248 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Trilaciclib Dihydrochloride
Steady interest

#2,156 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 Daffodil reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Daffodil and Trilaciclib Dihydrochloride 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 Daffodil

What is Daffodil?

  • Traditional anti-inflammatory remedy
  • Folk use for tumors and skin growths
  • Source of galantamine for memory/Alzheimer's
  • Antimicrobial folk use
  • Topical traditional remedies

Daffodil is a beautiful but toxic plant that contains alkaloids, including the one used to make the Alzheimer's drug galantamine. It is not safe to take as a homemade supplement, and all parts of the plant—especially the bulb—can cause serious poisoning if eaten. Leave any medicinal use to standardized, regulated medications prescribed by a doctor.

Narcissus pseudonarcissus · Amaryllidaceae · Bulb, flower, and leaves (source of certain alkaloids) · Not commonly available as a consumer supplement; the plant is the source of the prescription drug galantamine

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

Daffodil: dosing

There is no safe established dose of daffodil as a supplement, and it should not be taken by mouth. Because the whole plant is toxic, no amount can be recommended for self-treatment.The only proven medical use linked to this plant is the prescription drug galantamine, which is manufactured to a precise, standardized dose and must be prescribed and monitored by a healthcare provider.

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

Read the full Daffodil monograph & all interactions
Medication

About Trilaciclib Injection

What Is Trilaciclib Injection Used For?

Brand name: Cosela

Trilaciclib Injection (brand name Cosela) is used in adults with extensive-stage small cell lung cancer. It helps decrease the incidence of chemotherapy-induced myelosuppression. That means it lowers the chance that chemotherapy will suppress the bone marrow's production of blood cells.

It is given before certain chemotherapy regimens: a platinum/etoposide-containing regimen or a topotecan-containing regimen.

See full Trilaciclib Injection drug information
Keep checking

Other Drugs & Daffodil

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

See the full Daffodil interactions page
See every supplement checked against Trilaciclib Dihydrochloride, ranked by severity
Evidence & sources

Daffodil References

The 5 references that drive our Daffodil 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. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Bruynzeel DP. Bulb dermatitis. Dermatological problems in the flower bulb industries. Contact Dermatitis 1997;37:70-7.
  4. Bruynzeel DP, de Boer EM, Brouwer EJ, et al. Dermatitis in bulb growers. Contact Dermatitis 1993;29:11-5. PubMed
  5. Matulkova P, Gobin M, Evans M, et al. Gastro-intestinal poisoning due to consumption of daffodils mistaken for vegetables at commercial markets, Bristol, United Kingdom. Clin Toxicol (Phila) 2012;50(8):788-90. doi: 10.3109/15563650.2012.718350. 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 Daffodil and Trilaciclib Dihydrochloride Together: Common Questions

Is it safe to take Daffodil with Trilaciclib Dihydrochloride?
We do not list a known interaction between Daffodil and Trilaciclib Dihydrochloride. 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 Daffodil and Trilaciclib Dihydrochloride 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.
Does Trilaciclib Dihydrochloride interact with any supplements?
Yes. Trilaciclib Dihydrochloride has documented interactions with 13 supplements in our database — Daffodil is not one of them. The Trilaciclib Dihydrochloride 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

Daffodil monograph Uses, safety profile, and every drug interaction in one place Trilaciclib Injection drug information The full plain-English guide to this medication Trilaciclib Dihydrochloride supplement interactions Every supplement checked against Trilaciclib Dihydrochloride, 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 5 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Trilaciclib Dihydrochloride and Daffodil?

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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.