Drug & supplement interaction

Ascorbigen + Cyclophosphamide

Cyclophosphamide brand names: Cytoxan, Neosar.

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

We found no known interaction between Ascorbigen and Cyclophosphamide 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

Ascorbigen and Cyclophosphamide

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 Cyclophosphamide and Ascorbigen 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 Ascorbigen at all — not against Cyclophosphamide, 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.

Ascorbigen safety at a glance

Ascorbigen overall Not established There is very little human safety data on ascorbigen as a supplement.
Pregnancy Avoid Safety has not been studied in pregnancy, so it is best to avoid it.
Breastfeeding Avoid No safety data exist for breastfeeding, so avoid use.

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

Still wondering about combining Cyclophosphamide and Ascorbigen? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ascorbigen Itself Has Been Linked To

This is not an interaction — nothing below involves Cyclophosphamide. It is the side-effect record for Ascorbigen on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Ascorbigen, this list is the first place to look.

  • Bloating or gas Additional detail

    “Orally, when used in combination with broccoli powder, ascorbigen has been reported to cause flatulence, abdominal distension, and unpleasant after taste. It is unclear if these effects are due to ascorbigen, broccoli powder, or the combination.”

    Ascorbigen · Natural Medicines adverse-effect record, reported in flatulence.

    1 source cited
    1. 15460. Bramwell B, Ferguson S, Scarlett N, Macintosh A. The use of ascorbigen in the treatment of fibromyalgia patients: a preliminary trial. Altern Med Rev 2000;5:455-62.

Everything above comes from the Natural Medicines adverse-effect record for Ascorbigen — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Cyclophosphamide’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Cyclophosphamide column appears here.

Overlapping uses

What Cyclophosphamide Is Prescribed For, and What Ascorbigen Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Cyclophosphamide is a prescription medicine with approved uses on its FDA label. Ascorbigen is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Cyclophosphamide is prescribed for: Cyclophosphamide is used to treat many types of cancer in adults and children, including malignant lymphomas (such as Hodgkin's disease and Burkitt's lymphoma), multiple myeloma, several forms of leukemia, breast cancer, ovarian cancer, neuroblastoma, retinoblastoma, and advanced mycosis fungoides (a type of skin lymphoma). It is often given alongside other chemotherapy drugs rather than on its own. Oral and injectable powder formulations (but not the Cyclophosphamide Injection solution concentrate) are also approved for minimal change nephrotic syndrome — a kidney condition — in children who have not responded well to, or cannot tolerate, steroid therapy. The injectable solution concentrate is approved for adult patients only due to its alcohol content, and is not approved for use in children.

Ascorbigen has been studied for:

  • Breast cancer studied, not established Ascorbigen has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Ascorbigen for breast cancer

    Although there has been interest in using oral ascorbigen for the prevention of breast cancer, there is insufficient reliable information about the clinical effects of ascorbigen for this purpose.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Cyclophosphamide on your own; if you are taking Ascorbigen for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

Everything else you take

See Every Supplement That Interacts With Cyclophosphamide

This page covers Ascorbigen only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cyclophosphamide page lists 220 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Grapefruit (major), Siberian Cocklebur (major) and St. John's Wort (major).

By severity: 6 major · 176 moderate · 38 minor.

Open the Cyclophosphamide interaction page

One more smart check

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

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

#1,057 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Cyclophosphamide
Steady interest

#2,020 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 Ascorbigen reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Ascorbigen and Cyclophosphamide 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 Ascorbigen

What is Ascorbigen?

Ascorbigen
  • Antioxidant support
  • Immune support
  • Fibromyalgia symptoms
  • General wellness
  • Detoxification support

Ascorbigen is a natural compound formed when indole-3-carbinol (from cruciferous vegetables) combines with vitamin C, and it is mainly studied in the lab and in early research. There is not enough good human evidence to confirm it helps any specific health condition, and its safety as a supplement is not well established. Talk with your pharmacist or doctor before taking it.

Derived from cruciferous vegetables (such as cabbage, broccoli, Brussels sprouts) · Capsules, tablets, found naturally in cruciferous vegetables and some combination supplements

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

Ascorbigen: dosing

There is no established standard dose for ascorbigen. It has not been studied enough in humans to know a safe and effective amount.If you choose to use a product that contains ascorbigen, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Ascorbigen monograph & all interactions
Medication

About Cyclophosphamide

What Is Cyclophosphamide Used For?

Brand names: Cytoxan, Neosar

Cyclophosphamide is used to treat many types of cancer in adults and children, including malignant lymphomas (such as Hodgkin's disease and Burkitt's lymphoma), multiple myeloma, several forms of leukemia, breast cancer, ovarian cancer, neuroblastoma, retinoblastoma, and advanced mycosis fungoides (a type of skin lymphoma). It is often given alongside other chemotherapy drugs rather than on its own.

Oral and injectable powder formulations (but not the Cyclophosphamide Injection solution concentrate) are also approved for minimal change nephrotic syndrome — a kidney condition — in children who have not responded well to, or cannot tolerate, steroid therapy. The injectable solution concentrate is approved for adult patients only due to its alcohol content, and is not approved for use in children.

Most-Reported Side Effects for Cyclophosphamide

From FAERS, the FDA’s public side-effect reporting system (176,005 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Febrile neutropenia 14,532 reports
Neutropenia 10,580 reports
Fever 9,242 reports
Disease progression 8,093 reports
Pneumonia 6,669 reports
See full Cyclophosphamide drug information
Keep checking

Other Drugs & Ascorbigen

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

See the full Ascorbigen interactions page
See every supplement checked against Cyclophosphamide, ranked by severity
Evidence & sources

Ascorbigen References

The 1 references that drive our Ascorbigen 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. Bramwell B, Ferguson S, Scarlett N, Macintosh A. The use of ascorbigen in the treatment of fibromyalgia patients: a preliminary trial. Altern Med Rev 2000;5:455-62.

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 Ascorbigen and Cyclophosphamide Together: Common Questions

Is it safe to take Ascorbigen with Cyclophosphamide?
We do not list a known interaction between Ascorbigen and Cyclophosphamide. 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.
Are Ascorbigen and Cyclophosphamide used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Ascorbigen in each. That is a conversation for your prescriber, especially if Cyclophosphamide is being adjusted to a target.
Does Cyclophosphamide interact with any supplements?
Yes. Cyclophosphamide has documented interactions with 220 supplements in our database — Ascorbigen is not one of them. The Cyclophosphamide 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

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

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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.