Drug & supplement interaction

7,8-benzoflavone + tislelizumab-jsgr

tislelizumab-jsgr brand name: Tevimbra.

No Known Interaction
The bottom line No known interaction

We found no known interaction between 7,8-benzoflavone and tislelizumab-jsgr 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.

Know someone taking this? Share
Interaction report

7,8-benzoflavone and tislelizumab-jsgr

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 tislelizumab-jsgr and 7,8-benzoflavone 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 7,8-benzoflavone at all — not against tislelizumab-jsgr, 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.

7,8-benzoflavone safety at a glance

7,8-benzoflavone overall Avoid Human safety data are lacking and it is mainly a research chemical, not a tested supplement.
Pregnancy Possibly Unsafe When used orally or parenterally. The U.S. Food and Drug Administration and other regulatory agencies warn that dietary supplements containing aromatase inhibit... Read the full pregnancy detail
Breastfeeding Possibly Unsafe When used orally or parenterally. The U.S. Food and Drug Administration and other regulatory agencies warn that dietary supplements containing aromatase inhibit... 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 tislelizumab-jsgr and 7,8-benzoflavone? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What tislelizumab-jsgr’s Own FDA Label Lists

This is not an interaction — none of it involves 7,8-benzoflavone. These are the most notable effects listed in the ADVERSE REACTIONS section of tislelizumab-jsgr’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. 10 of them are worth acting on rather than waiting out — marked below.

  • A change in thyroid levels Worth acting on
  • A low platelet count Worth acting on mentioned in 10.7% of FDA reports for tislelizumab-jsgr
  • Trouble swallowing Worth acting on
  • Anemia Worth acting on mentioned in 11.9% of FDA reports for tislelizumab-jsgr
  • Low potassium Worth acting on
  • Blood clots Worth acting on
  • Pancreatitis Worth acting on
  • High blood sugar Worth acting on
  • Chest pain Worth acting on
  • Kidney problems Worth acting on

Showing the 10 most notable of 36 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 tislelizumab-jsgr. Read the label on DailyMed › Where a percentage is shown, it is the share of 177 voluntary FDA FAERS reports for tislelizumab-jsgr that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. 7,8-benzoflavone’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no 7,8-benzoflavone side to compare — that is a limit of the record, not a statement that 7,8-benzoflavone has no side effects.

Special populations

7,8-benzoflavone in Pregnancy & Breastfeeding

Pregnancy And Lactation Possibly Unsafe

When used orally or parenterally. The U.S. Food and Drug Administration and other regulatory agencies warn that dietary supplements containing aromatase inhibitors are dangerous. 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 tislelizumab-jsgr

This page covers 7,8-benzoflavone only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the tislelizumab-jsgr page lists 42 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Asarabacca (major), Beer (major), Siberian Cocklebur (major), Wine (major) and Aristolochia (moderate).

By severity: 4 major · 37 moderate · 1 minor.

From our pharmacist’s overview on the tislelizumab-jsgr page

“Alcohol, even ordinary beer and wine, sits at the top of my concerns for anyone receiving tislelizumab-jsgr (Tevimbra), an immunotherapy for certain cancers of the esophagus and stomach. Drugs in this class can provoke immune attacks on the liver, and 38 of the 42 supplement ingredients on this page add liver stress of their own, so ne…”

Reviewed by 2 · Jul 18, 2026

Open the tislelizumab-jsgr interaction page

How much people look this up

Where 7,8-benzoflavone and tislelizumab-jsgr 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 7,8-benzoflavone
Steady interest

#1,040 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication tislelizumab-jsgr
Top half

#846 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 7,8-benzoflavone reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The 7,8-benzoflavone and tislelizumab-jsgr records this page draws on were last updated October 6, 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 7,8-benzoflavone

What is 7,8-benzoflavone?

  • Lowering estrogen levels
  • Raising testosterone
  • Reducing gynecomastia from anabolic steroids
  • Bodybuilding and athletic performance

7,8-Benzoflavone (alpha-naphthoflavone) is a synthetic flavone studied mainly in laboratories for its effects on enzymes like aromatase and certain liver enzymes. It is not an approved or well-studied dietary supplement in humans, its safety is poorly defined, and aromatase inhibitors are banned in sports — so it should not be used without medical supervision.

Synthetic flavone compound (also studied as a plant flavonoid derivative) · Research chemical; sometimes found in bodybuilding or 'aromatase inhibitor' supplements

An interaction check asks whether these two react with each other — it does not ask whether 7,8-benzoflavone is a good idea for someone in your situation. Here is what our 7,8-benzoflavone record says about it on its own.

7,8-benzoflavone: dosing

There is no established or safe human dose for 7,8-benzoflavone. It is not an approved supplement or medicine, and reliable dosing information does not exist.We do not recommend taking it.

From our 7,8-benzoflavone monograph — the full record covers uses, side effects and every documented interaction.

Read the full 7,8-benzoflavone monograph & all interactions
Medication

About tislelizumab-jsgr

Most-Reported Side Effects for tislelizumab-jsgr

From FAERS, the FDA’s public side-effect reporting system (177 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Disease progression 64 reports
Malignant neoplasm progression 22 reports
Anemia 21 reports
Lymphadenopathy 19 reports
Thrombocytopenia 19 reports
Keep checking

Other Drugs & 7,8-benzoflavone

Browse every other medication we’ve checked against 7,8-benzoflavone — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

7,8-benzoflavone References

The 2 references that drive our 7,8-benzoflavone 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. Joseph JF, Parr MK. Synthetic androgens as designer supplements. Curr Neuropharmacol. 2015;13(1):89-100. PubMed
  2. FDA WARNING LETTER: Performance Nutrition Formulators LLC dba VMI Sports. U.S. Food & Drug Administration Office of Human and Animal Food Operations East. May 18, 2018. Available at: https://www.fda.gov/inspections-compliance-enforcement-and-criminal-inve

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 7,8-benzoflavone and tislelizumab-jsgr Together: Common Questions

Is it safe to take 7,8-benzoflavone with tislelizumab-jsgr?
We do not list a known interaction between 7,8-benzoflavone and tislelizumab-jsgr. 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 tislelizumab-jsgr interact with any supplements?
Yes. tislelizumab-jsgr has documented interactions with 42 supplements in our database — 7,8-benzoflavone is not one of them. The tislelizumab-jsgr interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About tislelizumab-jsgr and 7,8-benzoflavone?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.