Drug & supplement interaction

Ascorbigen + Bismuth Subsalicylate, Metronidazole, Tetracycline

Bismuth Subsalicylate, Metronidazole, Tetracycline brand name: Helidac.

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 Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline 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 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

Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline

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 Bismuth Subsalicylate, Metronidazole, Tetracycline 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 Bismuth Subsalicylate, Metronidazole, Tetracycline, 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 Bismuth Subsalicylate, Metronidazole, Tetracycline and Ascorbigen? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline May Share a Side Effect

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.

  • Bloating or gas Additional detail

    Ascorbigen

    “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.

    Bismuth Subsalicylate, Metronidazole, Tetracycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Bismuth Subsalicylate, Metronidazole, Tetracycline. Read the label on DailyMed ›

Effects for Bismuth Subsalicylate, Metronidazole, Tetracycline come from the ADVERSE REACTIONS section of its FDA label; effects for Ascorbigen come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Everything else you take

See Every Supplement That Interacts With Bismuth Subsalicylate, Metronidazole, Tetracycline

This page covers Ascorbigen only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bismuth Subsalicylate, Metronidazole, Tetracycline page lists 148 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Oleander (major) and Siberian Cocklebur (major).

By severity: 6 major · 128 moderate · 14 minor.

Open the Bismuth Subsalicylate, Metronidazole, Tetracycline 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 Bismuth Subsalicylate, Metronidazole, Tetracycline, 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 Bismuth Subsalicylate, Metronidazole, Tetracycline 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
Top half

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

29 days ago today
Medication Bismuth Subsalicylate, Metronidazole, Tetracycline
Steady interest

#1,705 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 13, 2026. The Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline 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 Bismuth, Metronidazole, and Tetracycline

What Is Bismuth, Metronidazole, and Tetracycline Used For?

Brand name: Helidac

This combination — bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride — is used to eradicate Helicobacter pylori (H. pylori), the bacterial infection linked to duodenal ulcers. It is always taken alongside omeprazole as part of a complete treatment regimen. Getting rid of H. pylori has been shown to reduce the risk of duodenal ulcers coming back.

It is approved for adults who have an active duodenal ulcer or a history of one within the past five years. Like all antibiotics, it should only be used for infections that are proven or strongly suspected to be caused by bacteria, to help prevent antibiotic resistance.

See full Bismuth, Metronidazole, and Tetracycline 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 Bismuth Subsalicylate, Metronidazole, Tetracycline, 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 Bismuth Subsalicylate, Metronidazole, Tetracycline Together: Common Questions

Is it safe to take Ascorbigen with Bismuth Subsalicylate, Metronidazole, Tetracycline?
We do not list a known interaction between Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline. 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 Ascorbigen and Bismuth Subsalicylate, Metronidazole, Tetracycline have any of the same side effects?
Yes — our sources link each of them separately to one 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.
Does Bismuth Subsalicylate, Metronidazole, Tetracycline interact with any supplements?
Yes. Bismuth Subsalicylate, Metronidazole, Tetracycline has documented interactions with 148 supplements in our database — Ascorbigen is not one of them. The Bismuth Subsalicylate, Metronidazole, Tetracycline 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 Bismuth, Metronidazole, and Tetracycline drug information The full plain-English guide to this medication Bismuth Subsalicylate, Metronidazole, Tetracycline supplement interactions Every supplement checked against Bismuth Subsalicylate, Metronidazole, Tetracycline, 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 Bismuth Subsalicylate, Metronidazole, Tetracycline 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.