Centaury + Magnesium Hydroxide (OTC drug)
Magnesium Hydroxide (OTC drug) brand name: Milk of Magnesia (MOM).
We found no known interaction between Centaury and Magnesium Hydroxide (OTC drug) 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.
Centaury and Magnesium Hydroxide (OTC drug)
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 Magnesium Hydroxide (OTC drug) and Centaury 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 Centaury at all — not against Magnesium Hydroxide (OTC drug), 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.
Centaury safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Magnesium Hydroxide (OTC drug)
This page covers Centaury only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Magnesium Hydroxide (OTC drug) page lists 46 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Jalap (major), Oleander (major), Alder Buckthorn (moderate) and Aloe (moderate).
By severity: 3 major · 34 moderate · 9 minor.
From our pharmacist’s overview on the Magnesium Hydroxide (OTC drug) page
“Milk of magnesia (magnesium hydroxide) is the medicine-cabinet fix for constipation, and most of the 46 supplements known to interact with it come from the same shelf. Twenty-nine are herbal stimulant laxatives, aloe latex and cascara sagrada among them, and doubling up on laxatives can drain fluid and potassium fast.”
Reviewed by 2 · Jul 18, 2026
Taking Centaury as Part of a Dietary Supplement Product? Check It for Interactions
We hold 67 real supplement products containing Centaury, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Centaury. Even though Centaury itself has no known interaction with Magnesium Hydroxide (OTC drug), another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Centaury and Magnesium Hydroxide (OTC drug) 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.
#1,141 of 1,452 supplements looked up here in the last 7 days
#1,587 of 2,830 medications looked up here in the last 7 days
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 Centaury reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Centaury and Magnesium Hydroxide (OTC drug) 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.
About Centaury
What is Centaury?
- Poor appetite
- Indigestion and bloating
- Stimulating digestion (bitter tonic)
- Mild fever (traditional)
- Liver and gallbladder support (traditional)
Centaury is a bitter-tasting herb traditionally used to stimulate appetite and ease mild digestive complaints. Solid human studies are lacking, so its benefits remain largely unproven, and it is best used short-term with guidance from a pharmacist or doctor.
Centaurium erythraea · Gentianaceae · Aerial parts (flowering tops, leaves, and stems) · Tea (infusion), tincture, liquid extract, capsules, and as an ingredient in herbal bitters
An interaction check asks whether these two react with each other — it does not ask whether Centaury is a good idea for someone in your situation. Here is what our Centaury record says about it on its own.
Centaury: dosing
There is no officially established standard dose for centaury. Traditional use generally involves small amounts of the dried herb prepared as a tea or a few drops of tincture taken before meals.Because products differ widely in strength and form, the safest approach is to follow the directions on the product label and not exceed the recommended amount. It is meant for short-term, occasional use rather than long-term daily use.
From our Centaury monograph — the full record covers uses, side effects and every documented interaction.
Other Drugs & Centaury
Browse every other medication we’ve checked against Centaury — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Centaury against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Metoprolol ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Acetaminophen ›
- Escitalopram ›
- Tadalafil ›
- Clopidogrel ›
- Abemaciclib ›
- Atorvastatin ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Ibuprofen ›
- Methamphetamine ›
- Tirzepatide ›
- Semaglutide ›
- Warfarin Sodium ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Bendamustine ›
- Amitriptyline ›
- Acyclovir ›
- Methotrexate ›
- Doxycycline ›
- Fluoxetine ›
- Amphetamine ›
- Lamotrigine ›
- Pregabalin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Gabapentin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Methylene Blue ›
- Omeprazole ›
- Amlodipine Besylate ›
- Quetiapine ›
- Letrozole ›
- Duloxetine ›
- Naproxen ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Centaury list.
Centaury References
The 1 references that drive our Centaury 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.
- Martynyuk L, Martynyuk L, Ruzhitska O, Martynyuk O. Effect of the herbal combination Canephron N on diabetic nephropathy in patients with diabetes mellitus: results of a comparative cohort study. J Altern Complement Med. 2014;20(6):472-478. 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.
Magnesium Hydroxide (OTC drug) Is Linked to Lower Levels of 3 Nutrients
Natural Medicines records Magnesium Hydroxide (OTC drug) as a medicine that can lower these. This is not an interaction with Centaury — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Magnesium Hydroxide (OTC drug) nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Centaury and Magnesium Hydroxide (OTC drug) Together: Common Questions
Is it safe to take Centaury with Magnesium Hydroxide (OTC drug)?
Does Magnesium Hydroxide (OTC drug) interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Magnesium Hydroxide (OTC drug) and Centaury?
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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.