Drug & supplement interaction

Goldenrod + Cobicistat

Cobicistat brand name: Tybost.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Goldenrod and Cobicistat 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 label for Cobicistat states a food rule worth keeping to, and 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

Goldenrod and Cobicistat

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 Cobicistat 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 Cobicistat and Goldenrod? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Cobicistat

Interactions in our licensed database are recorded against drug classes, not just single drug names. Cobicistat is filed under 2 classifications — cytochrome p450 3a4 (cyp3a4) inhibitors, oral drugs. Goldenrod has documented interactions with 1 drug class — the most serious being diuretic drugs (moderate) — and none of Cobicistat’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 — Cobicistat 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. Cobicistat)
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

No Interaction Found — But Data Suggests Goldenrod and Cobicistat 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. One of them is worth acting on rather than waiting out — marked below.

  • An allergic reaction Worth acting on Additional detail

    Goldenrod

    “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

    Cobicistat

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

  • A skin rash Additional detail

    Goldenrod

    “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.

    Cobicistat

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

Reported for Goldenrod but not commonly for Cobicistat: wheezing.

Effects for Cobicistat come from the ADVERSE REACTIONS section of its FDA label; effects for Goldenrod come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 20,779 voluntary FDA FAERS reports for Cobicistat 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.

How to take them

Some Cobicistat Products Have a Food Rule — Goldenrod Should Not Break It

At least one FDA label for a product containing Cobicistat says to take it with food. If you take Goldenrod on an empty stomach out of habit, keep them separate — and take Cobicistat with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Cobicistat products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION TYBOST must be coadministered with atazanavir or darunavir at the same time, with food, and in combination with other HIV-1 antiretroviral agents.

From the Dosage and Administration section of the FDA label we read for Cobicistat — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Cobicistat

This page covers Goldenrod only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cobicistat page lists 30 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Adrafinil (moderate), Cannabidiol (cbd) (moderate), Cannabinol (cbn) (moderate) and Cannabis (moderate).

By severity: 1 major · 19 moderate · 10 minor.

From our pharmacist’s overview on the Cobicistat page

“Activated charcoal is the one entry to understand first if you take cobicistat (Tybost). Charcoal soaks up drugs in the gut, and since cobicistat's entire job is boosting an HIV medicine to protective levels, blunting its absorption can put the whole regimen at risk.”

Reviewed by 2 · Jul 18, 2026

Open the Cobicistat 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 Cobicistat, 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 Cobicistat 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

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

29 days ago today
Medication Cobicistat
Steady interest

#1,504 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 13, 2026. The Goldenrod and Cobicistat 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
Medication

About Cobicistat

What Is Cobicistat Used For?

Brand name: Tybost

Tybost (cobicistat) is not itself an HIV treatment — it works by slowing the breakdown of certain HIV medicines so they stay active in your body long enough to work. Specifically, Tybost is used to boost the HIV medicines atazanavir or darunavir (once-daily dosing) as part of a complete HIV-1 treatment regimen in adults and in children weighing at least 14 kg (about 31 lbs).

Tybost is not interchangeable with ritonavir (another booster) for all HIV medicines. It is not recommended with darunavir twice-daily, fosamprenavir, saquinavir, or tipranavir.

Most-Reported Side Effects for Cobicistat

From FAERS, the FDA’s public side-effect reporting system (20,779 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Bone density decreased 8,112 reports
Chronic kidney disease 4,754 reports
Renal injury 4,577 reports
Tooth loss 4,186 reports
Bone loss 4,107 reports
See full Cobicistat drug information
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 Cobicistat, 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 Cobicistat Together: Common Questions

Is it safe to take Goldenrod with Cobicistat?
We do not list a known interaction between Goldenrod and Cobicistat. 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 Goldenrod and Cobicistat have any of the same side effects?
Yes — our sources link each of them separately to 2 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.
Should I take Goldenrod and Cobicistat at the same time of day?
At least one FDA label for a product containing Cobicistat says to take it with food. If you take Goldenrod on an empty stomach out of habit, keep them separate and take Cobicistat with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Cobicistat products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the Goldenrod and Cobicistat combination checked?
Interactions in our licensed database are recorded against drug classes. Cobicistat is filed under 2 classifications, and Goldenrod has documented interactions with 1 drug class — none of Cobicistat'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 — Cobicistat 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 Cobicistat interact with any supplements?
Yes. Cobicistat has documented interactions with 30 supplements in our database — Goldenrod is not one of them. The Cobicistat 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 Cobicistat drug information The full plain-English guide to this medication Cobicistat supplement interactions Every supplement checked against Cobicistat, 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 Cobicistat 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.