Drug & supplement interaction

Goldenrod + Belladona Extract, Phenobarbital

Belladona Extract, Phenobarbital brand name: Chardonna-2.

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 Goldenrod and Belladona Extract, Phenobarbital 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.

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Interaction report

Goldenrod and Belladona Extract, Phenobarbital

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 Belladona Extract, Phenobarbital and Goldenrod 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.

Goldenrod safety at a glance

Goldenrod overall Use caution Often well tolerated short-term, but human safety data are limited and allergy is possible.
Pregnancy Avoid Not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid Not enough safety information, so it is best avoided while breastfeeding.

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

Still wondering about combining Belladona Extract, Phenobarbital and Goldenrod? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Belladona Extract, Phenobarbital

Interactions in our licensed database are recorded against drug classes, not just single drug names. Belladona Extract, Phenobarbital is filed under 9 classifications — including cytochrome p450 2b6 (cyp2b6) substrates, cytochrome p450 2c9 (cyp2c9) inducers, barbiturates. Goldenrod has documented interactions with 1 drug class — the most serious being diuretic drugs (moderate) — and none of Belladona Extract, Phenobarbital’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

Goldenrod Does Interact With Other Medications

Goldenrod has 75 moderate known drug interactions in our database — Belladona Extract, Phenobarbital 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. Belladona Extract, Phenobarbital)
Taking anything else?

Check Another of Your Medications Against Goldenrod

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

What to actually watch for

What Goldenrod Itself Has Been Linked To

This is not an interaction — nothing below involves Belladona Extract, Phenobarbital. It is the side-effect record for Goldenrod on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Goldenrod, this list is the first place to look. One entry is worth acting on rather than waiting out — marked below.

  • Wheezing / An allergic reaction Worth acting on Additional detail

    “Environmental exposure to goldenrod has been reported to cause a delayed allergic reaction involving rhinoconjunctivitis and bronchial asthma in one case report of a 42 year-old woman who worked at a flower shop and was exposed to members of the Asteraceae/Compositae family, including goldenrod.”

    Goldenrod · Natural Medicines adverse-effect record, reported in asthma.

    1 source cited
    1. 52558. Uter, W., Nohle, M., Randerath, B., and Schwanitz, H. J. Occupational contact urticaria and late-phase bronchial asthma caused by compositae pollen in a florist. Am J Contact Dermat. 2001;12(3):182-184. DOI

    “Topically, goldenrod has been reported to cause allergic contact dermatitis. Environmental exposure to goldenrod has been reported to cause an allergic reaction involving rhinoconjunctivitis and bronchial asthma in one case report.”

    Goldenrod · Natural Medicines adverse-effect record, reported in asthma.

    1 source cited
    1. 52558. Uter, W., Nohle, M., Randerath, B., and Schwanitz, H. J. Occupational contact urticaria and late-phase bronchial asthma caused by compositae pollen in a florist. Am J Contact Dermat. 2001;12(3):182-184. DOI
  • A skin rash Additional detail

    “There is a limited amount of information available about the adverse effects of goldenrod.

    Most Common Adverse Effects:

    Topically: Allergic contact dermatitis in sensitive individuals.”

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

Everything above comes from the Natural Medicines adverse-effect record for Goldenrod — expand a row for the licensed statement it rests on. We haven’t matched Belladona Extract, Phenobarbital to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Belladona Extract, Phenobarbital.

Everything else you take

See Every Supplement That Interacts With Belladona Extract, Phenobarbital

This page covers Goldenrod only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Belladona Extract, Phenobarbital page lists 141 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Kava (major).

By severity: 8 major · 115 moderate · 18 minor.

From our pharmacist’s overview on the Belladona Extract, Phenobarbital page

“Chardonna-2 pairs belladonna with phenobarbital, a sedating barbiturate, so anyone taking it for stomach or bowel spasms is already on something that slows the brain down. That is why 78 of the 141 supplement interactions on file involve added sedation, and why this list warrants real vigilance rather than a quick skim.”

Reviewed by 2 · Jul 18, 2026

Open the Belladona Extract, Phenobarbital interaction page

One more smart check

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

We hold 83 real supplement products containing Goldenrod, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Goldenrod. Even though Goldenrod itself has no known interaction with Belladona Extract, Phenobarbital, 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 Goldenrod and Belladona Extract, Phenobarbital 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 Goldenrod
Top half

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

29 days ago today
Medication Belladona Extract, Phenobarbital
Top 25%

#593 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 Goldenrod reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Goldenrod and Belladona Extract, Phenobarbital 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 Goldenrod

What is Goldenrod?

  • Urinary tract health
  • Mild bladder or kidney support
  • Inflammation
  • Sore throat and mouth rinse
  • Wound care (traditional)

Goldenrod is a flowering plant traditionally used as an herbal diuretic and for urinary tract health. Human evidence is limited, and while it is generally well tolerated, people with certain allergies, kidney problems, or who are pregnant or breastfeeding should be cautious. Talk with a pharmacist or doctor before using it.

Solidago virgaurea · Asteraceae · Aerial parts (flowers, leaves, and stems) · Tea, tincture, liquid extract, capsules, dried herb

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

Goldenrod: dosing

There is no well-established standardized dose for goldenrod, and the right amount can vary widely depending on the product, the species used, and the form (tea, tincture, or capsule).Because of this, the best approach is to follow the directions on the product label and not exceed the recommended amount.

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

Read the full Goldenrod monograph & all interactions
Keep checking

Other Drugs & Goldenrod

Browse every other medication we’ve checked against Goldenrod — 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 Goldenrod page.

No interaction 2,754 drugs checked — show the list

We also checked Goldenrod 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 Goldenrod list.

See the full Goldenrod interactions page
See every supplement checked against Belladona Extract, Phenobarbital, ranked by severity
Evidence & sources

Goldenrod References

The 6 references that drive our Goldenrod 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. Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.
  2. Uter, W., Nohle, M., Randerath, B., and Schwanitz, H. J. Occupational contact urticaria and late-phase bronchial asthma caused by compositae pollen in a florist. Am J Contact Dermat. 2001;12(3):182-184. DOI
  3. Chodera, A., Dabrowska, K., Sloderbach, A., Skrzypczak, L., and Budzianowski, J. [Effect of flavonoid fractions of Solidago virgaurea L on diuresis and levels of electrolytes]. Acta Pol.Pharm 1991;48(5-6):35-37.
  4. Chodera, A., Dabrowska, K., Bobkiewicz-Kozlowska, T., Tkaczyk, J., Skrzypczak, L., and Budzianowski, J. [Effect of leiocarposide on experimental urinary calculi in rats]. Acta Pol.Pharm 1988;45(2):181-186.
  5. Chodera, A., Dabrowska, K., Skrzypczak, L., and Budzianowski, J. [Further studies on the diuretic effect of leiocarposide]. Acta Pol.Pharm 1986;43(5):499-503.
  6. Chodera, A., Dabrowska, K., Senczuk, M., Wasik-Olejnik, A., Skrzypczak, L., Budzianowski, J., and Ellnain-Wojtaszek, M. [Diuretic effect of the glycoside from a plant of the Solidago L. genus]. Acta Pol.Pharm 1985;42(2):199-204.

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 Goldenrod and Belladona Extract, Phenobarbital Together: Common Questions

Is it safe to take Goldenrod with Belladona Extract, Phenobarbital?
We do not list a known interaction between Goldenrod and Belladona Extract, Phenobarbital. 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.
How was the Goldenrod and Belladona Extract, Phenobarbital combination checked?
Interactions in our licensed database are recorded against drug classes. Belladona Extract, Phenobarbital is filed under 9 classifications, and Goldenrod has documented interactions with 1 drug class — none of Belladona Extract, Phenobarbital'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 Goldenrod interact with any other medications?
Yes. Goldenrod has 75 documented drug interactions in our database — Belladona Extract, Phenobarbital 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 Belladona Extract, Phenobarbital interact with any supplements?
Yes. Belladona Extract, Phenobarbital has documented interactions with 141 supplements in our database — Goldenrod is not one of them. The Belladona Extract, Phenobarbital 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

Goldenrod monograph Uses, safety profile, and every drug interaction in one place Belladona Extract, Phenobarbital supplement interactions Every supplement checked against Belladona Extract, Phenobarbital, 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 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Belladona Extract, Phenobarbital and Goldenrod?

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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.