Drug & supplement interaction

Pink Root + Fostemsavir Tromethamine

Fostemsavir Tromethamine brand name: Rukobia.

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 Pink Root and Fostemsavir Tromethamine 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

Pink Root and Fostemsavir Tromethamine

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 Fostemsavir Tromethamine and Pink Root 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 Pink Root at all — not against Fostemsavir Tromethamine, 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.

Pink Root safety at a glance

Pink Root overall Use caution Pink Root can be toxic in larger doses and has little modern safety data.
Pregnancy Likely Unsafe When used orally. For pink root to be effective, it must be used along with a purgative laxative. However, purgative laxative use is contraindicated during preg... Read the full pregnancy detail
Breastfeeding Avoid Avoid while breastfeeding because safety has not been established.

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 Fostemsavir Tromethamine and Pink Root? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Fostemsavir Tromethamine’s Own FDA Label Lists

This is not an interaction — none of it involves Pink Root. These are the most notable effects listed in the ADVERSE REACTIONS section of Fostemsavir Tromethamine’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 3 of them are worth acting on rather than waiting out — marked below.

  • Yellowing of the skin or eyes Worth acting on
  • Liver problems Worth acting on
  • A higher chance of infection Worth acting on
  • Vivid dreams or nightmares
  • Drowsiness
  • Trouble sleeping
  • Stomach upset
  • Tiredness mentioned in 3.8% of FDA reports for Fostemsavir Tromethamine
  • Stomach pain
  • A skin rash mentioned in 4.6% of FDA reports for Fostemsavir Tromethamine

Showing the 10 most notable of 14 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Fostemsavir Tromethamine. Read the label on DailyMed › Where a percentage is shown, it is the share of 238 voluntary FDA FAERS reports for Fostemsavir Tromethamine that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Pink Root’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Pink Root side to compare — that is a limit of the record, not a statement that Pink Root has no side effects.

Special populations

Pink Root in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally. For pink root to be effective, it must be used along with a purgative laxative. However, purgative laxative use is contraindicated during pregnancy. For this reason, pink root should not be used in pregnancy.

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 Fostemsavir Tromethamine

This page covers Pink Root only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Fostemsavir Tromethamine page lists 146 supplements it has a documented interaction with, worst first, each one explained.

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

By severity: 8 major · 98 moderate · 40 minor.

Open the Fostemsavir Tromethamine interaction page

One more smart check

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

We hold 2 real supplement products containing Pink Root, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Pink Root. Even though Pink Root itself has no known interaction with Fostemsavir Tromethamine, 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 Pink Root and Fostemsavir Tromethamine 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 Pink Root
Steady interest

#1,054 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Fostemsavir Tromethamine
Top half

#770 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 Pink Root reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 27, 2026. The Pink Root and Fostemsavir Tromethamine records this page draws on were last updated July 11, 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 Pink Root

What is Pink Root?

  • Intestinal worms (anthelmintic)
  • Digestive complaints
  • Traditional folk remedy

Pink Root (Spigelia marilandica) is a North American plant that was historically used to expel intestinal worms. It contains potentially toxic compounds, has little modern safety or effectiveness data, and is rarely used today. We do not recommend self-treating with it; talk to a healthcare provider about safer, proven options.

Spigelia marilandica · Loganiaceae · Root and rhizome · Dried root, powder, tincture, tea (decoction)

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

Pink Root: dosing

There is no established, standardized safe dose of Pink Root for modern use. Historical doses are not considered reliable or safe by today's standards.Because of its potential toxicity, we do not recommend self-dosing.

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

Read the full Pink Root monograph & all interactions
Medication

About Fostemsavir

What Is Fostemsavir Used For?

Brand name: Rukobia

Rukobia (fostemsavir) is used to treat HIV-1 infection in adults who have tried many other antiretroviral treatments and whose virus is no longer responding — due to resistance, side effects, or safety concerns. It is always used alongside other HIV medicines, not on its own.

Rukobia is specifically intended for heavily treatment-experienced patients with multidrug-resistant HIV-1 who are failing their current regimen. It is not a first-line HIV treatment.

Most-Reported Side Effects for Fostemsavir Tromethamine

From FAERS, the FDA’s public side-effect reporting system (238 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 17 reports
Rash 11 reports
Viral load increased 11 reports
Pathogen resistance 10 reports
Dizziness 9 reports
See full Fostemsavir drug information
Keep checking

Other Drugs & Pink Root

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

See the full Pink Root interactions page
See every supplement checked against Fostemsavir Tromethamine, ranked by severity
Evidence & sources

Pink Root References

The 1 references that drive our Pink Root 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. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.

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 Pink Root and Fostemsavir Tromethamine Together: Common Questions

Is it safe to take Pink Root with Fostemsavir Tromethamine?
We do not list a known interaction between Pink Root and Fostemsavir Tromethamine. 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.
Does Fostemsavir Tromethamine interact with any supplements?
Yes. Fostemsavir Tromethamine has documented interactions with 146 supplements in our database — Pink Root is not one of them. The Fostemsavir Tromethamine 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

Pink Root monograph Uses, safety profile, and every drug interaction in one place Fostemsavir drug information The full plain-English guide to this medication Fostemsavir Tromethamine supplement interactions Every supplement checked against Fostemsavir Tromethamine, 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 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Fostemsavir Tromethamine and Pink Root?

Our pharmacists answer your medication & supplement questions — free.

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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.