Bulbine Natalensis + Esomeprazole, Naproxen
Esomeprazole, Naproxen brand name: Vimovo.
Esomeprazole, Naproxen falls into 4 drug categories that Bulbine Natalensis can interact with; the most serious is rated moderate. Theoretically, Bulbine natalensis stem might reduce the levels and clinical effects of CYP1A2 substrates.
Read the full interaction reportBulbine Natalensis and Esomeprazole, Naproxen
These two interact in 4 distinct ways. Each one is explained separately below.
Why Are There 4 Interactions?
Bulbine Natalensis interacts with whole categories of medication. Esomeprazole, Naproxen falls into 4 of those categories, so it can interact with Bulbine Natalensis in 4 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).
CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES
1 of 4Why this applies to Esomeprazole, Naproxen
Esomeprazole, Naproxen falls under CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES — the group Bulbine Natalensis interacts with.
In vitro research shows that Bulbine natalensis stem extract slightly induces CYP1A2 mRNA expression and enzyme activity. Theoretically, this may increase the metabolism of CYP1A2 substrates; however, this has not been studied in humans.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Here's the gist with Vimovo (the combo of esomeprazole and naproxen). In lab dishes, Bulbine natalensis seemed to nudge up an enzyme called CYP1A2, which is one of the pathways your body uses to clear certain medicines. If that sped-up clearance happened in people, it could mean a bit less drug sticking around, so the naproxen might not control pain or inflammation as well, and the esomeprazole might not protect your stomach as fully.
The honest truth: this is theoretical and only comes from test-tube work, never people, so I wouldn't lose sleep over it. Neither of these drugs is a prodrug, so the direction would be toward a slightly weaker effect, not stronger. Still, please run it by your pharmacist or doctor before adding this supplement.
- Husain I, Manda V, Alhusban M, et al. Modulation of CYP3A4 and CYP2C9 activity by Bulbine natalensis and its constituents: An assessment of HDI risk of B. natalensis containing supplements. Phytomedicine 2021;81:153416. PubMed
CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES
2 of 4Esomeprazole, Naproxen also falls under CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES.
In vitro research shows that Bulbine natalensis stem extract induces CYP2C9 mRNA expression and enzyme activity. Theoretically, this may increase the metabolism of CYP2C9 substrates; however, this has not been studied in humans.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Vimovo combines two medicines: naproxen (an anti-inflammatory pain reliever) and esomeprazole (a stomach acid blocker that protects your gut from the naproxen). The naproxen part is partly broken down by a liver enzyme called CYP2C9. In lab and animal studies, Bulbine natalensis seemed to speed up that enzyme. In theory, that could clear naproxen out a bit faster, so you might get less pain and inflammation relief than expected.
I want to be honest with you: this is only a theoretical, test-tube concern, never confirmed in people, so I wouldn't lose sleep over it. The bigger flag for me is that Bulbine has raised liver and kidney safety questions in animals, and naproxen can also stress the kidneys. Please run this combination by your pharmacist or doctor first.
- Husain I, Dale OR, Manda V, et al. Bulbine natalensis (currently Bulbine latifolia) and select bulbine knipholones modulate the activity of AhR, CYP1A2, CYP2B6, and P-gp. Planta Med 2022;88(12):975-984. PubMed
CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES
3 of 4Esomeprazole, Naproxen also falls under CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES.
In vitro research shows that Bulbine natalensis stem extract induces CYP3A4 mRNA expression and enzyme activity. Theoretically, this may increase the metabolism of CYP3A4 substrates, but this has not been studied in humans.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Vimovo combines two medicines: esomeprazole (a stomach acid blocker) and naproxen (an anti-inflammatory pain reliever). In lab and animal testing, Bulbine natalensis appeared to speed up an enzyme called CYP3A4. Esomeprazole is partly cleared by that enzyme, so in theory this supplement could lower esomeprazole levels a bit. If that happened, the acid-blocking part might work less well, meaning your stomach could be less protected and you might notice more heartburn or stomach upset, especially since naproxen can be hard on the stomach lining.
I want to be honest: this is only a theoretical concern from test-tube and rodent studies, never confirmed in people, so don't panic. Still, given the liver questions around this supplement, please run it by your pharmacist or doctor before combining the two.
- Husain I, Dale OR, Manda V, et al. Bulbine natalensis (currently Bulbine latifolia) and select bulbine knipholones modulate the activity of AhR, CYP1A2, CYP2B6, and P-gp. Planta Med 2022;88(12):975-984. PubMed
ANTICOAGULANT/ANTIPLATELET DRUGS
4 of 4Esomeprazole, Naproxen also falls under ANTICOAGULANT/ANTIPLATELET DRUGS.
In vitro research shows that Bulbine natalensis ground leaf extract inhibits platelet aggregation.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Vimovo is a combo pill: it pairs naproxen (an NSAID pain reliever) with esomeprazole, a stomach acid blocker added to protect against ulcers. Here's the thing about this pairing with Bulbine natalensis: naproxen already nudges up your bleeding risk on its own, because it makes platelets a little less sticky and can irritate the stomach lining.
In lab dishes, Bulbine natalensis leaf extract also slowed platelet clumping. So in theory, stacking the two could mean easier bruising, nosebleeds, or stomach bleeding (think dark or tarry stools). This is theoretical, based on lab work rather than people, so don't panic. Still, given Bulbine's separate liver and kidney concerns, please run it by your pharmacist or doctor first.
- Mosa RA, Lazarus GG, Gwala PE, Oyedeji AO, Opoku AR. In Vitro Anti-platelet Aggregation, Antioxidant and Cytotoxic Activity of Extracts of Some Zulu Medicinal Plants. J Nat Prod. 2011;4(2011):136-146.
What These Ratings Mean
Every interaction above is graded three ways — here’s the key to each label.
Clinically significant. Avoid the combination, or use only under close professional supervision.
Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.
Generally not serious. Be aware of it and mention it to your pharmacist.
- LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
- ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
- PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
- UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
- AHigh-quality meta-analysis (quantitative systematic review).
- BCase-control study.
- CConsensus.
- DAnecdotal evidence.
These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.
Bulbine Natalensis Also Interacts With Other Medications
Bulbine Natalensis has 918 moderate known drug interactions in our database — the Esomeprazole, Naproxen one above is among them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Bulbine Natalensis
We haven’t checked that one against Bulbine Natalensis yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Bulbine Natalensis. Pick one to open its full report.
See Every Supplement That Interacts With Esomeprazole, Naproxen
This page covers Bulbine Natalensis only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Esomeprazole, Naproxen page lists 348 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), Danshen (major) and Grapefruit (major).
By severity: 9 major · 283 moderate · 56 minor.
From our pharmacist’s overview on the Esomeprazole, Naproxen page
“Bleeding risk is the thread running through nearly this whole page. Vimovo pairs naproxen, an anti-inflammatory that already makes stomach bleeding more likely, with esomeprazole on board to shield the gut, and most of the supplements flagged here could push that bleeding risk higher still.”
Reviewed by 2 · Jul 18, 2026
Taking Bulbine Natalensis as Part of a Dietary Supplement Product? Check It for Interactions
We hold 51 real supplement products containing Bulbine Natalensis, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Bulbine Natalensis. Your product may carry other ingredients that interact with Esomeprazole, Naproxen too, on top of Bulbine Natalensis — and those would not show on this page. Find your product and we’ll check every ingredient on its label:
Where Bulbine Natalensis and Esomeprazole, Naproxen 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.
#981 of 1,452 supplements looked up here in the last 7 days
#1,949 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.
About Bulbine Natalensis
What is Bulbine Natalensis?
- Boosting testosterone
- Improving libido
- Muscle building and athletic performance
- General male vitality
Bulbine natalensis is a South African plant marketed mainly as a testosterone-boosting and libido supplement, but the human evidence is essentially absent and most claims come from animal studies. Animal research has also raised concerns about possible liver and kidney harm at higher doses, so caution is warranted. Talk to your pharmacist or doctor before trying it.
Other Drugs & Bulbine Natalensis
Browse every other medication we’ve checked against Bulbine Natalensis — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
918 interactions
- Diclofenac Sodium ›
- Diltiazem ›
- Theophylline ›
- Nifedipine ›
- Ibuprofen ›
- Aspirin ›
- Hydrocortisone ›
- Naproxen ›
- Doxycycline ›
- Erythromycin ›
- Estradiol ›
- Minocycline ›
- Propranolol ›
- Tetracycline ›
- Lidocaine ›
- Ranitidine ›
- Norethindrone ›
- Testosterone ›
- Verapamil ›
- Levonorgestrel ›
- Prednisone ›
- Quinidine ›
- Cyclosporine ›
- Dexamethasone ›
- Glyburide ›
- Methyltestosterone ›
- Triazolam ›
- Zopiclone ›
- Colchicine ›
- Fentanyl ›
- Flurbiprofen ›
- Oxybutynin ›
- Phenytoin ›
- Prednisolone ›
- Tacrolimus ›
- Temazepam ›
- Triamcinolone ›
- Apomorphine ›
- Budesonide ›
- Carbamazepine ›
- Clindamycin ›
- Dextromethorphan ›
- Diclofenac Potassium ›
- Dipyridamole ›
- Doxorubicin ›
- Fluticasone ›
- Formoterol ›
- Indomethacin ›
- Miconazole ›
- Morphine Sulfate ›
- Trimipramine ›
- Acetaminophen ›
- Buprenorphine ›
- Conjugated Estrogens ›
- Diazepam ›
- Everolimus ›
- Ivabradine ›
- Ivermectin ›
- Ketoprofen ›
- Lofepramine ›
Showing 60 of 918 moderate interactions — see all 918 on the Bulbine Natalensis page.
No interaction 1,911 drugs checked — show the list
We also checked Bulbine Natalensis against these medications and found no known interaction in our sources. Open any page to confirm.
- Levothyroxine ›
- Methylphenidate ›
- Metoprolol ›
- Rosuvastatin ›
- Escitalopram ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Tirzepatide ›
- Methamphetamine ›
- Semaglutide ›
- Sumatriptan ›
- Lisdexamfetamine ›
- Metformin ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Acyclovir ›
- Methotrexate ›
- Amphetamine ›
- Pregabalin ›
- Lamotrigine ›
- Azithromycin ›
- Gabapentin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Methylene Blue ›
- Duloxetine ›
- Ciprofloxacin ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
- Candesartan Cilexetil ›
- Cephalexin ›
- Cyclopentolate ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
- Roxithromycin ›
- Mannitol ›
- Levetiracetam ›
- Pegunigalsidase Alfa-iwxj ›
- Ezetimibe ›
- Daptomycin ›
- Levothyroxine Sodium ›
- Dexmethylphenidate ›
- Mitomycin ›
- Amoxicillin, Clavulanate Potassium ›
- Spironolactone ›
- Hexobarbitone ›
- Thyroid Hormone ›
- Phentermine, Topiramate ›
- Carbidopa, Levodopa ›
- Factor 7a ›
- Levodopa ›
- Minoxidil ›
- Hethylphenidate Hcl ›
- Cefaclor ›
- Lenvatinib ›
- Venlafaxine ›
- Azelaic Acid ›
- Phenylephrine ›
- Codeine Sulfate ›
Showing the 60 most looked-up of 1,911 medications checked with no known interaction — see the full Bulbine Natalensis list.
Sources & How We Checked
Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for vitamins, herbs and supplements — the basis for our interaction data.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for the medication overviews.
- NIH Dietary Supplement Label Database (DSLD) — Official supplement product labels.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Esomeprazole, Naproxen Is Linked to Lower Levels of 9 Nutrients
Natural Medicines records Esomeprazole, Naproxen as a medicine that can lower these. This is not an interaction with Bulbine Natalensis — 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 Esomeprazole, Naproxen 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 Bulbine Natalensis and Esomeprazole, Naproxen Together: Common Questions
Can you take Bulbine Natalensis with Esomeprazole, Naproxen?
Why are there 4 interactions listed for Bulbine Natalensis and Esomeprazole, Naproxen?
How serious is the Bulbine Natalensis and Esomeprazole, Naproxen interaction?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.