Drug & supplement interaction

Tronadora + Nateglinide

Nateglinide brand name: Starlix.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Tronadora has a moderate interaction with Nateglinide. Theoretically, concomitant use of tronadora and antidiabetes drugs might increase the risk of hypoglycemia.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceB
What do Severity, Likelihood & Evidence mean?
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Interaction report

Tronadora and Nateglinide

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTIDIABETES DRUGS

Why this applies to Nateglinide

Nateglinide falls under ANTIDIABETES DRUGS — the group Tronadora interacts with.

Theoretically, concomitant use of tronadora and antidiabetes drugs might increase the risk of hypoglycemia. Clinical research suggests that a combination of tronadora and Guazuma ulmifolia reduce levels of fasting glucose in patients with type 2 diabetes, including those already taking antidiabetes agents. The effect of tronadora alone is unknown. Animal research is conflicting.
Severity Moderate Likelihood Possible Evidence B

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.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version: nateglinide already pushes your pancreas to release insulin to bring blood sugar down, especially right around meals. Tronadora (the Tecoma stans plant) may have its own mild sugar-lowering effect. So stacking the two together could push your blood sugar lower than you intend, raising the chance of a low blood sugar episode (hypoglycemia). That can show up as shakiness, sweating, a racing heart, dizziness, confusion, or hunger.

I want to be honest about the evidence here. It's mostly theoretical, and the human study that showed lower fasting glucose combined tronadora with another plant, so tronadora alone isn't well proven. Still, it's worth a quick chat with your pharmacist or doctor before adding it, and keep checking your sugars. Please don't start or stop anything on your own.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Costantino L, Raimondi L, Pirisino R, et al. Isolation and pharmacological activities of the Tecoma stans alkaloids. Farmaco 2003;58:781-5. PubMed
  2. Meckes-Lozoya M, Ibanez-Camacho R. Hepatic glycogenolysis produced by intraperitoneal administration of total extract of Tecoma stans in rats. Arch Invest Med (Mex) 1985;16:387-9.
  3. Roman-Ramos R, Flores-Saenz JL, Partida-Hernandez G, et al. Experimental study of the hypoglycemic effect of some antidiabetic plants. Arch Invest Med (Mex) 1991;22:87-93.
  4. Pascoe-González S, Ramos-Zavala MG, Buenrostro Ahued MA, et al. Administration of herbarium mixture (Guazuma ulmifolia/Tecoma stans) on metabolic profile in type 2 diabetes mellitus patients: A randomized, double-blind, placebo-controlled trial. J Med Foo
  5. Gupta A, Behl T, Sehgal A, et al. Elucidating the neuroprotective effect of Tecoma stans leaf extract in STZ-induced diabetic neuropathy. Evid Based Complement Alternat Med 2022;2022:3833392. PubMed
  6. Morales-Ferra DL, Zavala-Sánchez MÁ, Jiménez-Ferrer E, González-Cortazar M, Zamilpa A. Effect of Tecoma stans (L.) Juss. ex Kunth in a murine model of metabolic syndrome. Plants (Basel) 2022;11(14):1794. PubMed

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction 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.
  • PossibleInteraction 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.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Tronadora Also Interacts With Other Medications

Tronadora has 85 moderate known drug interactions in our database — the Nateglinide one above is one of them. If you take anything else, check it against the full list below.

Moderate 85 No known interaction 2,745 (incl. Nateglinide)
Taking anything else?

Check Another of Your Medications Against Tronadora

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

Everything else you take

See Every Supplement That Interacts With Nateglinide

This page covers Tronadora only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Nateglinide page lists 290 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Siberian Cocklebur (major), Acai (moderate), Adrafinil (moderate) and African Wild Potato (moderate).

By severity: 2 major · 241 moderate · 47 minor.

From our pharmacist’s overview on the Nateglinide page

“People who take nateglinide (Starlix) with meals for type 2 diabetes are often drawn to supplements marketed for blood sugar, and that overlap is why these 290 interactions warrant real caution. Some 239 of the ingredients affect blood sugar on their own, most pushing it lower, so stacking them on nateglinide raises the odds of hypogly…”

Reviewed by 2 · Jul 18, 2026

Open the Nateglinide interaction page

How much people look this up

Where Tronadora and Nateglinide 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 Tronadora
Steady interest

#1,450 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Nateglinide
Steady interest

#2,177 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.

Supplement

About Tronadora

What is Tronadora?

  • Blood sugar control / diabetes
  • Digestive complaints
  • Mild fever
  • Yeast or fungal concerns
  • Traditional 'tonic' use

Tronadora (Tecoma stans) is a flowering shrub used in Mexican and Latin American folk medicine, most often as a tea for diabetes and digestive complaints. Human evidence is very limited, so it should not replace proven treatments. Because it may affect blood sugar and its safety is not well studied, talk to your pharmacist or doctor before using it—and avoid it during pregnancy and breastfeeding.

Read the full Tronadora monograph & all interactions
Medication

About Nateglinide

What Is Nateglinide Used For?

Brand name: Starlix

Nateglinide tablets are used to help improve blood sugar (glucose) control in adults with type 2 diabetes. It is always used together with diet and exercise — not as a replacement for them.

Nateglinide is not for type 1 diabetes, and it is not used to treat diabetic ketoacidosis (a serious complication where the blood becomes dangerously acidic).

See full Nateglinide drug information
Keep checking

Other Drugs & Tronadora

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

0Major
85Moderate
0Minor
2,744No known interaction
85 Moderate 2,744 No interaction
Moderate

85 interactions

Showing 60 of 85 moderate interactions — see all 85 on the Tronadora page.

No interaction 2,744 drugs checked — show the list

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

Showing the 60 most looked-up of 2,744 medications checked with no known interaction — see the full Tronadora list.

See the full Tronadora interactions page
See every supplement checked against Nateglinide, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

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

Keep exploring
Tronadora monograph › Uses, safety, and every drug interaction in one place Nateglinide supplement interactions › Every supplement checked against Nateglinide, ranked by severity Nateglinide drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Tronadora and Nateglinide Together: Common Questions

Can you take Tronadora with Nateglinide?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Tronadora and Nateglinide interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Nateglinide and Tronadora?

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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.