Drug & supplement interaction

Inosine + Methazolamide

Methazolamide brand name: Neptazane.

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 Inosine and Methazolamide 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

Inosine and Methazolamide

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 Methazolamide and Inosine 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.

Inosine safety at a glance

Inosine overall Use caution Inosine raises uric acid, which may be a problem for people with gout or kidney issues.
Pregnancy Avoid There is not enough safety information, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid use.

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

Still wondering about combining Methazolamide and Inosine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Methazolamide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Methazolamide is filed under 5 classifications — including carbonic anhydrase inhibitors, diuretic drugs, antihypertensive drugs. Inosine has documented interactions with 1 drug class — the most serious being antigout drugs (moderate) — and none of Methazolamide’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

Inosine Does Interact With Other Medications

Inosine has 9 moderate known drug interactions in our database — Methazolamide isn’t one of them. If you take anything else, check it against the full list below.

Moderate 9 No known interaction 2,821 (incl. Methazolamide)
Taking anything else?

Check Another of Your Medications Against Inosine

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

What to actually watch for

No Interaction Found — But Data Suggests Inosine and Methazolamide 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.

  • Nausea Additional detail

    Inosine

    “Orally, inosine has been reported to cause nausea.”

    Inosine · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    2 sources cited
    1. 95289. Gonsette RE, Sindic C, D'hooghe MB, et al. Boosting endogenous neuroprotection in multiple sclerosis: The association of inosine and interferon beta in relapsing-remitting Multiple Sclerosis (ASIIMS) trial. Mult Scler. 2010;16(4):455-62.
    2. 106854. Parkinson Study Group SURE-PD3 Investigators, Schwarzschild MA, Ascherio A, et al. Effect of Urate-Elevating Inosine on Early Parkinson Disease Progression: The SURE-PD3 Randomized Clinical Trial. JAMA 2021;326(10):926-939.

    Methazolamide

    Listed in the ADVERSE REACTIONS section of the FDA label for Methazolamide. Read the label on DailyMed ›

Reported for Inosine but not commonly for Methazolamide: kidney stones and raised blood pressure.

Effects for Methazolamide come from the ADVERSE REACTIONS section of its FDA label; effects for Inosine come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 339 voluntary FDA FAERS reports for Methazolamide that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. 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 Methazolamide

This page covers Inosine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Methazolamide page lists 218 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Lithium (major) and Oleander (major).

By severity: 7 major · 187 moderate · 24 minor.

From our pharmacist’s overview on the Methazolamide page

“Methazolamide (Neptazane) treats glaucoma by lowering pressure inside the eye, and because it also has mild water-pill effects it can nudge blood pressure and potassium on its own. That is exactly where most of the 218 supplements on this page press, and the list earns real caution.”

Reviewed by 2 · Jul 18, 2026

Open the Methazolamide interaction page

One more smart check

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

We hold 93 real supplement products containing Inosine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Inosine. Even though Inosine itself has no known interaction with Methazolamide, 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 Inosine and Methazolamide 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 Inosine
Steady interest

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

29 days ago today
Medication Methazolamide
Steady interest

#1,761 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 Inosine reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Inosine and Methazolamide 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 Inosine

What is Inosine?

  • Athletic performance and energy
  • Multiple sclerosis (raising uric acid)
  • Parkinson's disease (raising uric acid)
  • General health and recovery

Inosine is a nucleoside (a building block of DNA and RNA) that the body makes on its own and is also sold as a supplement, mostly marketed for athletic performance. Solid evidence that it boosts exercise performance is lacking, and because it raises uric acid levels, it may pose risks for people with gout or kidney problems. Talk with your pharmacist or doctor before using it.

Not applicable; inosine is a naturally occurring compound (a nucleoside), not a plant part · Capsules, tablets, powder

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

Inosine: dosing

There is no well-established, standardized dose of inosine. Amounts used in studies have varied, and there is no proven safe or effective dose for general use.If you choose to use an inosine product, follow the directions on the label and do not exceed the recommended amount. Do not assume that taking more will give better results.

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

Read the full Inosine monograph & all interactions
Medication

About Methazolamide

What Is Methazolamide Used For?

Brand name: Neptazane

Methazolamide tablets are used to treat eye conditions where lowering intraocular pressure (pressure inside the eye) is expected to help. These include chronic open-angle glaucoma and secondary glaucoma.

Methazolamide tablets are also used before surgery in acute angle-closure glaucoma, when reducing eye pressure ahead of the procedure is needed. Note that long-term use in angle-closure glaucoma is not appropriate.

Most-Reported Side Effects for Methazolamide

From FAERS, the FDA’s public side-effect reporting system (339 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 41 reports
Dizziness 29 reports
Dyspnea 28 reports
Headache 28 reports
Blood pressure increased 22 reports
See full Methazolamide drug information
Keep checking

Other Drugs & Inosine

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

0Major
9Moderate
0Minor
2,820No known interaction
9 Moderate 2,820 No interaction
Moderate

9 interactions

No interaction 2,820 drugs checked — show the list

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

Showing the 60 most looked-up of 2,820 medications checked with no known interaction — see the full Inosine list.

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

Inosine References

The 7 references that drive our Inosine 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. Parkinson Study Group SURE-PD Investigators. Inosine to increase serum and cerebrospinal fluid urate in Parkinson disease: a randomized clinical trial. JAMA Neurol. 2014;71(2):141-50.
  2. Muñoz García D, Midaglia L, Martinez Vilela J, et al. Associated inosine to interferon: results of a clinical trial in multiple sclerosis. Acta Neurol Scand. 2015;131(6):405-10. PubMed
  3. Gonsette RE, Sindic C, D'hooghe MB, et al. Boosting endogenous neuroprotection in multiple sclerosis: The association of inosine and interferon beta in relapsing-remitting Multiple Sclerosis (ASIIMS) trial. Mult Scler. 2010;16(4):455-62.
  4. Markowitz CE, Spitsin S, Zimmerman V, et al. The treatment of multiple sclerosis with inosine. J Altern Complement Med. 2009;15(6):619-25. PubMed
  5. Watanabe H, Hattori T, Kume A, et al. Improved Parkinsons disease motor score in a single-arm open-label trial of febuxostat and inosine. Medicine (Baltimore) 2020;99(35):e21576. PubMed
  6. Parkinson Study Group SURE-PD3 Investigators, Schwarzschild MA, Ascherio A, et al. Effect of Urate-Elevating Inosine on Early Parkinson Disease Progression: The SURE-PD3 Randomized Clinical Trial. JAMA 2021;326(10):926-939.
  7. Walk D, Nicholson K, Locatelli E, et al. Randomized trial of inosine for urate elevation in amyotrophic lateral sclerosis. Muscle Nerve 2023;67(5):378-386. 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 Inosine and Methazolamide Together: Common Questions

Is it safe to take Inosine with Methazolamide?
We do not list a known interaction between Inosine and Methazolamide. 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 Inosine and Methazolamide 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.
How was the Inosine and Methazolamide combination checked?
Interactions in our licensed database are recorded against drug classes. Methazolamide is filed under 5 classifications, and Inosine has documented interactions with 1 drug class — none of Methazolamide'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 Inosine interact with any other medications?
Yes. Inosine has 9 documented drug interactions in our database — Methazolamide 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 Methazolamide interact with any supplements?
Yes. Methazolamide has documented interactions with 218 supplements in our database — Inosine is not one of them. The Methazolamide 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

Inosine monograph Uses, safety profile, and every drug interaction in one place Methazolamide drug information The full plain-English guide to this medication Methazolamide supplement interactions Every supplement checked against Methazolamide, 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 7 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Methazolamide and Inosine?

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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.