Drug & supplement interaction

Oxygen Therapy + Galantamine

Galantamine brand names: Reminyl, Razadyne.

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 Oxygen Therapy and Galantamine 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

Oxygen Therapy and Galantamine

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 Galantamine and Oxygen Therapy in our sources. This does not guarantee that the combination is completely free of risk — research on Oxygen Therapy alongside specific medications may be limited.

Worth understanding: our licensed dataset holds no drug-interaction record for Oxygen Therapy at all — not against Galantamine, 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.

Oxygen Therapy is a treatment rather than something you take. Tell whoever provides it which medicines you use, and ask your prescriber whether it is appropriate for your health and treatment. 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.

Oxygen Therapy safety at a glance

Oxygen Therapy overall Use caution Medical oxygen is safe and lifesaving when prescribed, but it is a drug that can cause harm if used without proper testing and monitoring.
Pregnancy Use caution Supplemental oxygen may be used in pregnancy when medically needed, but only under a doctor's supervision.
Breastfeeding Use caution Use only as directed by a healthcare provider; medical oxygen does not pass into milk, but the underlying condition needs proper care.

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

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

What Galantamine’s Own FDA Label Lists

This is not an interaction — none of it involves Oxygen Therapy. These are the most notable effects listed in the ADVERSE REACTIONS section of Galantamine’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 have Oxygen Therapy and take the medicine. 4 of them are worth acting on rather than waiting out — marked below.

  • Memory problems Worth acting on mentioned in 20.8% of FDA reports for Galantamine
  • A slow heartbeat Worth acting on
  • Fainting Worth acting on
  • Low mood Worth acting on
  • Drowsiness mentioned in 18.4% of FDA reports for Galantamine
  • Weight loss
  • Tremor or shakiness
  • Reduced appetite
  • Muscle pain
  • Stomach upset

Showing the 10 most notable of 17 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 Galantamine. Read the label on DailyMed › Where a percentage is shown, it is the share of 3,188 voluntary FDA FAERS reports for Galantamine that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Oxygen Therapy’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Oxygen Therapy side to compare — that is a limit of the record, not a statement that Oxygen Therapy has no side effects.

Everything else you take

See Every Supplement That Interacts With Galantamine

This page covers Oxygen Therapy only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Galantamine page lists 170 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), 1,3-dmaa (moderate) and Acacia Rigidula (moderate).

By severity: 3 major · 126 moderate · 41 minor.

From our pharmacist’s overview on the Galantamine page

“Galantamine (Razadyne) treats Alzheimer's disease, so it is often a caregiver filling the pill organizer alongside memory supplements and morning juice. That pairing deserves genuine care, because three of the 170 supplement ingredients on file are rated major and two of them are everyday items.”

Reviewed by 2 · Jul 18, 2026

Open the Galantamine interaction page

How much people look this up

Where Oxygen Therapy and Galantamine 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 Oxygen Therapy
Steady interest

#1,157 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Galantamine
Top half

#1,111 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. Oxygen Therapy is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Oxygen Therapy reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Oxygen Therapy and Galantamine 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 .
Treatment approach

About Oxygen Therapy

What is Oxygen Therapy?

  • Low blood oxygen from lung disease (COPD)
  • Severe COVID-19 or pneumonia
  • Hyperbaric treatment of wounds and decompression sickness
  • Carbon monoxide poisoning
  • Cluster headaches
  • Marketed for 'energy,' altitude, or general wellness

Oxygen therapy is a real medical treatment that gives extra oxygen to people whose blood oxygen is low, and it can be lifesaving when prescribed and monitored by a healthcare provider. It is not a dietary supplement, and using too much oxygen or relying on unproven 'oxygen' wellness products can be harmful or simply ineffective. Always use oxygen only under medical guidance.

Medical oxygen gas (nasal cannula, face mask, oxygen concentrator), hyperbaric oxygen chambers, and marketed 'oxygen' products such as canned oxygen, oxygenated water, and hydrogen peroxide drops

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

Oxygen Therapy: dosing

There is no single 'dose' of oxygen that fits everyone. Medical oxygen is prescribed and adjusted by a healthcare provider based on your blood oxygen levels, your condition, and your symptoms. It is usually measured as a flow rate (liters per minute) or a percentage of oxygen, and often guided by a fingertip oxygen monitor (pulse oximeter) or blood tests.Because the right amount is so individual, you should never change your oxygen flow or stop it on your own.

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

Read the full Oxygen Therapy monograph & all interactions
Medication

About Galantamine

What Is Galantamine Used For?

Brand names: Reminyl, Razadyne

Galantamine — available as extended-release capsules, tablets, and an oral solution — is used to treat mild to moderate dementia caused by Alzheimer's disease. All supported formulations share this indication.

It does not cure or slow the underlying disease, but it can help support cognitive function in people with early to moderate-stage Alzheimer's. Its benefits may lessen as the disease progresses and more brain cells are lost.

Most-Reported Side Effects for Galantamine

From FAERS, the FDA’s public side-effect reporting system (3,188 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fall 812 reports
Cognitive disorder 664 reports
Constipation 651 reports
Balance disorder 632 reports
Hypotension 631 reports
See full Galantamine drug information
Keep checking

Other Drugs & Oxygen Therapy

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

See the full Oxygen Therapy interactions page
See every supplement checked against Galantamine, ranked by severity
Evidence & sources

Oxygen Therapy References

The 2 sources that drive our Oxygen Therapy monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Oxygen Therapy is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Oxygen Therapy — MedlinePlus (U.S. National Library of Medicine) Source
  2. Oxygen Therapy — Cleveland Clinic Source

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

Having Oxygen Therapy While Taking Galantamine: Common Questions

Is it safe to have Oxygen Therapy while taking Galantamine?
We do not list a known interaction between Oxygen Therapy and Galantamine. 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.
Does Galantamine interact with any supplements?
Yes. Galantamine has documented interactions with 170 supplements in our database — Oxygen Therapy is not one of them. The Galantamine 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

Oxygen Therapy monograph Uses, safety profile, and every drug interaction in one place Galantamine drug information The full plain-English guide to this medication Galantamine supplement interactions Every supplement checked against Galantamine, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Galantamine and Oxygen Therapy?

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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.