Drug & supplement interaction

Algin + Neostigmine Methylsulfate

Neostigmine Methylsulfate brand name: Bloxiverz.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Algin and Neostigmine Methylsulfate 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

Algin and Neostigmine Methylsulfate

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 Neostigmine Methylsulfate and Algin 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.

Algin safety at a glance

Algin overall Use caution Generally well tolerated in food amounts, but supplement safety is less studied.
Pregnancy Use caution Food amounts are likely fine, but supplement-level use should be discussed with your doctor.
Breastfeeding Use caution Limited safety data; use only with guidance from your healthcare provider.

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

Still wondering about combining Neostigmine Methylsulfate and Algin? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Neostigmine Methylsulfate

Interactions in our licensed database are recorded against drug classes, not just single drug names. Neostigmine Methylsulfate is filed under 2 classifications — acetylcholinesterase (ache) inhibitors, cholinergic drugs. Algin has documented interactions with 1 drug class — the most serious being oral drugs (minor) — and none of Neostigmine Methylsulfate’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Algin Does Interact With Other Medications

Algin has 2,022 minor known drug interactions in our database — Neostigmine Methylsulfate isn’t one of them. If you take anything else, check it against the full list below.

Minor 2,022 No known interaction 808 (incl. Neostigmine Methylsulfate)
Taking anything else?

Check Another of Your Medications Against Algin

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

What to actually watch for

What Neostigmine Methylsulfate’s Own FDA Label Lists

This is not an interaction — none of it involves Algin. These are the most notable effects listed in the ADVERSE REACTIONS section of Neostigmine Methylsulfate’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. 9 of them are worth acting on rather than waiting out — marked below.

  • A slow heartbeat Worth acting on
  • Fainting Worth acting on
  • Wheezing Worth acting on
  • An irregular heartbeat Worth acting on
  • Seizures Worth acting on
  • Shortness of breath Worth acting on
  • A severe allergic reaction Worth acting on
  • Hives Worth acting on
  • An allergic reaction Worth acting on
  • Bloating or gas mentioned in 6.1% of FDA reports for Neostigmine Methylsulfate

Showing the 10 most notable of 26 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 Neostigmine Methylsulfate. Read the label on DailyMed › Where a percentage is shown, it is the share of 426 voluntary FDA FAERS reports for Neostigmine Methylsulfate that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Algin’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Algin side to compare — that is a limit of the record, not a statement that Algin has no side effects.

Everything else you take

See Every Supplement That Interacts With Neostigmine Methylsulfate

This page covers Algin only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Neostigmine Methylsulfate page lists 22 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Arenaria Rubra (moderate), Bacopa (moderate), Bael (moderate), Betel Nut (moderate) and Boxwood (moderate).

By severity: 21 moderate · 1 minor.

From our pharmacist’s overview on the Neostigmine Methylsulfate page

“Betel nut sits at the top of my concerns for anyone on neostigmine (Bloxiverz), a medication that boosts acetylcholine to strengthen nerve-to-muscle signaling. Nearly all 22 supplements on file work the same way the drug does, blocking the enzyme that clears acetylcholine, so stacking them can pile on cholinergic side effects like cram…”

Reviewed by 2 · Jul 18, 2026

Open the Neostigmine Methylsulfate interaction page

One more smart check

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

We hold 60 real supplement products containing Algin, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Algin. Even though Algin itself has no known interaction with Neostigmine Methylsulfate, 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 Algin and Neostigmine Methylsulfate 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 Algin
Top half

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

29 days ago today
Medication Neostigmine Methylsulfate
Steady interest

#2,282 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 Algin reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Algin and Neostigmine Methylsulfate records this page draws on were last updated June 22, 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 Algin

What is Algin?

Algin
  • Heartburn and acid reflux (in combination products)
  • Lowering cholesterol
  • Digestive health and feeling full
  • Use as a thickener and binder in foods and medicines
  • Weight management

Algin (alginate) is a fiber-like substance from brown seaweed that is widely used as a thickener, gel, and binder in foods and medicines. Its best-known medical use is in heartburn products, where it forms a barrier that helps reduce acid reflux; evidence for other uses like lowering cholesterol or weight loss is weaker. It is generally considered safe in food amounts, but check with your pharmacist before using it as a supplement, especially if you are pregnant or breastfeeding.

Extract from brown seaweed (brown algae) · Tablets, capsules, chewable tablets, liquid suspensions (often combined with antacids), powder used in foods

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

Algin: dosing

There is no single official supplement dose for algin. The amount varies a lot depending on the product and how it is used—for example, a chewable heartburn tablet, a liquid suspension, or a fiber powder will each have different directions.The best approach is to follow the directions on the product label and take it with a full glass of water. Do not assume "more is better," especially with fiber-type products.

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

Read the full Algin monograph & all interactions
Medication

About Neostigmine Methylsulfate

Most-Reported Side Effects for Neostigmine Methylsulfate

From FAERS, the FDA’s public side-effect reporting system (426 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Abdominal distension 26 reports
Hypotension 26 reports
Nausea 23 reports
Cardiac arrest 21 reports
Respiratory failure 21 reports
Keep checking

Other Drugs & Algin

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

0Major
0Moderate
2,022Minor
807No known interaction
2,022 Minor 807 No interaction
Minor

2,022 interactions

Showing 60 of 2,022 minor interactions — see all 2,022 on the Algin page.

No interaction 807 drugs checked — show the list

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

Showing the 60 most looked-up of 807 medications checked with no known interaction — see the full Algin list.

See the full Algin interactions page
See every supplement checked against Neostigmine Methylsulfate, ranked by severity
Evidence & sources

Algin References

The 3 references that drive our Algin 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. Harmuth-Hoene, A. E. and Schelenz, R. Effect of dietary fiber on mineral absorption in growing rats. J Nutr 1980;110(9):1774-1784. PubMed
  2. Bosscher D, Van Caillie-Bertrand M, Deelstra H. Effect of thickening agents, based on soluble dietary fiber, on the availability of calcium, iron, and zinc from infant formulas. Nutrition. 2001;17(7-8):614-8. PubMed
  3. Beneke CE, Viljoen AM, Hamman JH. Polymeric plant-derived excipients in drug delivery. Molecules. 2009;14(7):2602-20. PubMed

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 Algin and Neostigmine Methylsulfate Together: Common Questions

Is it safe to take Algin with Neostigmine Methylsulfate?
We do not list a known interaction between Algin and Neostigmine Methylsulfate. 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.
How was the Algin and Neostigmine Methylsulfate combination checked?
Interactions in our licensed database are recorded against drug classes. Neostigmine Methylsulfate is filed under 2 classifications, and Algin has documented interactions with 1 drug class — none of Neostigmine Methylsulfate's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Algin interact with any other medications?
Yes. Algin has 2,022 documented drug interactions in our database — Neostigmine Methylsulfate is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Neostigmine Methylsulfate interact with any supplements?
Yes. Neostigmine Methylsulfate has documented interactions with 22 supplements in our database — Algin is not one of them. The Neostigmine Methylsulfate 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

Algin monograph Uses, safety profile, and every drug interaction in one place Neostigmine Methylsulfate supplement interactions Every supplement checked against Neostigmine Methylsulfate, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Neostigmine Methylsulfate and Algin?

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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.