Drug & supplement interaction

7-methoxyflavone + Cysteamine

Cysteamine brand name: Cystadrops.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between 7-methoxyflavone and Cysteamine 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 Cysteamine states a food rule worth keeping to.

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Interaction report

7-methoxyflavone and Cysteamine

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 Cysteamine and 7-methoxyflavone 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.

7-methoxyflavone safety at a glance

7-methoxyflavone overall Not established Human safety data are very limited, so it cannot be called clearly safe.
Pregnancy Avoid Avoid because of unknown safety and possible effects on hormones.
Breastfeeding Avoid Avoid due to lack of safety data and potential hormonal activity.

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

Still wondering about combining Cysteamine and 7-methoxyflavone? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Keep it in perspective

7-methoxyflavone Does Interact With Other Medications

7-methoxyflavone has 12 moderate known drug interactions in our database — Cysteamine isn’t one of them. If you take anything else, check it against the full list below.

Moderate 12 No known interaction 2,818 (incl. Cysteamine)
Taking anything else?

Check Another of Your Medications Against 7-methoxyflavone

Covers the 2,830 medications we’ve checked against 7-methoxyflavone. Pick one to open its full report.

What to actually watch for

What Cysteamine’s Own FDA Label Lists

This is not an interaction — none of it involves 7-methoxyflavone. These are the most notable effects listed in the ADVERSE REACTIONS section of Cysteamine’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.

  • An electrolyte imbalance Worth acting on
  • Bone thinning Worth acting on
  • Dehydration Worth acting on
  • A severe skin reaction Worth acting on
  • Seizures Worth acting on
  • Low mood Worth acting on
  • Raised blood pressure Worth acting on
  • A severe allergic reaction Worth acting on
  • Hives Worth acting on
  • A low white blood cell count Worth acting on

Showing the 10 most notable of 27 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 Cysteamine. Read the label on DailyMed › 7-methoxyflavone’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no 7-methoxyflavone side to compare — that is a limit of the record, not a statement that 7-methoxyflavone has no side effects.

How to take them

Some Cysteamine Products Have a Food Rule — 7-methoxyflavone Should Not Break It

At least one FDA label for a product containing Cysteamine says to take it with food. If you take 7-methoxyflavone on an empty stomach out of habit, keep them separate — and take Cysteamine 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 Cysteamine 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.

If unable to take PROCYSBI without eating, take with food but limit the amount of food to approximately 4 ounces (½ cup) 1 hour before through 1 hour after administration.

From the Dosage and Administration section of the FDA label we read for Cysteamine — 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.

One more smart check

Taking 7-methoxyflavone as Part of a Dietary Supplement Product? Check It for Interactions

We hold 20 real supplement products containing 7-methoxyflavone, each one broken down to its full ingredient list — and combination products often carry several ingredients besides 7-methoxyflavone. Even though 7-methoxyflavone itself has no known interaction with Cysteamine, 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 7-methoxyflavone and Cysteamine 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-methoxyflavone
Steady interest

#1,079 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Cysteamine
Steady interest

#2,008 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-methoxyflavone reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The 7-methoxyflavone and Cysteamine records this page draws on were last updated June 20, 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-methoxyflavone

What is 7-methoxyflavone?

  • Boosting testosterone
  • Reducing estrogen (aromatase inhibition)
  • Athletic and bodybuilding performance
  • Muscle building support

7-Methoxyflavone is a lab-made or plant-derived flavonoid marketed mainly in testosterone-boosting and bodybuilding supplements based on the idea that it blocks the aromatase enzyme. However, solid human evidence that it raises testosterone, improves performance, or builds muscle is essentially lacking, and its long-term safety has not been well studied. Talk to your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Isolated flavonoid compound (synthesized or extracted from plants) · Capsules, tablets, powders (often in combination supplements)

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

7-methoxyflavone: dosing

There is no established, science-based dose for 7-methoxyflavone. It has not been studied enough in people to know a safe and effective amount.Most products that contain it provide it as part of a blend, and amounts vary widely from brand to brand. They can help you weigh whether the product makes sense for you and check for any concerns based on your health and other medicines.

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

Read the full 7-methoxyflavone monograph & all interactions
Medication

About Cysteamine

What Is Cysteamine Used For?

Brand name: Cystadrops

Cysteamine treats cystinosis, a rare inherited disease in which a substance called cystine accumulates inside cells and damages organs — especially the kidneys, eyes, and other tissues over time.

Cystagon (oral capsule) and Procysbi (oral delayed-release capsule and oral powder) are each used to treat nephropathic cystinosis — the kidney-affecting form of the disease — in children and adults. Cystadrops and Cystaran are eye drops used to treat corneal cystine crystal deposits (cystine crystals that form on the surface of the eye) in patients with cystinosis.

See full Cysteamine drug information
Keep checking

Other Drugs & 7-methoxyflavone

Browse every other medication we’ve checked against 7-methoxyflavone — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
12Moderate
0Minor
2,817No known interaction
12 Moderate 2,817 No interaction
Moderate

12 interactions

No interaction 2,817 drugs checked — show the list

We also checked 7-methoxyflavone against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,817 medications checked with no known interaction — see the full 7-methoxyflavone list.

See the full 7-methoxyflavone interactions page
See every supplement checked against Cysteamine, ranked by severity
Evidence & sources

7-methoxyflavone References

The 1 references that drive our 7-methoxyflavone 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. Ta N, Walle T. Aromatase inhibition by bioavailable flavones. J Steroid Biochem Mol Biol 2007;107(1-2):127-9.

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-methoxyflavone and Cysteamine Together: Common Questions

Is it safe to take 7-methoxyflavone with Cysteamine?
We do not list a known interaction between 7-methoxyflavone and Cysteamine. 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.
Should I take 7-methoxyflavone and Cysteamine at the same time of day?
At least one FDA label for a product containing Cysteamine says to take it with food. If you take 7-methoxyflavone on an empty stomach out of habit, keep them separate and take Cysteamine with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Cysteamine products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does 7-methoxyflavone interact with any other medications?
Yes. 7-methoxyflavone has 12 documented drug interactions in our database — Cysteamine is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

7-methoxyflavone monograph Uses, safety profile, and every drug interaction in one place Cysteamine drug information The full plain-English guide to this medication Cysteamine supplement interactions Every supplement checked against Cysteamine, 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 Cysteamine and 7-methoxyflavone?

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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.