Drug & supplement interaction

Betony + Diltiazem, Enalapril

Diltiazem, Enalapril brand name: Teczem.

Moderate Interaction
Medically reviewed by · Updated September 2026
The bottom line Moderate

Betony has a moderate interaction with Diltiazem, Enalapril. Theoretically, betony might have additive effects with blood pressure lowering drugs due to hypotensive activity of the glycosides found in betony.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Betony and Diltiazem, Enalapril

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTIHYPERTENSIVE DRUGS

Why this applies to Diltiazem, Enalapril

Diltiazem, Enalapril falls under ANTIHYPERTENSIVE DRUGS — the group Betony interacts with.

Theoretically, betony might have additive effects with blood pressure lowering drugs due to hypotensive activity of the glycosides found in betony. It might also interfere with the activity of pressor drugs. Some antihypertensive drugs include captopril (Capoten), enalapril (Vasotec), losartan (Cozaar), valsartan (Diovan), diltiazem (Cardizem), Amlodipine (Norvasc), hydrochlorothiazide (HydroDiuril), furosemide (Lasix), and many others.
Severity Moderate Likelihood Possible Evidence D

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.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Your medicine combines two blood pressure lowering drugs in one pill: diltiazem (a calcium channel blocker) and enalapril (an ACE inhibitor). The concern here is simple stacking. Betony may have a mild blood pressure lowering effect of its own, so adding it on top of a medicine that already drops your pressure could push it down a little too far.

If that happens, you might feel dizzy, lightheaded, tired, or notice your heart pounding, especially when you stand up quickly. Keep in mind this is a theoretical interaction based on how betony's plant compounds behave, not on solid human studies, so for most people it stays mild. Still, it's worth a quick chat with your pharmacist or doctor before adding betony, and checking your pressure at home can help.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • 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.
Evidence the quality of the studies behind the rating (graded A–D)
  • 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.

Keep it in perspective

Betony Also Interacts With Other Medications

Betony has 171 moderate known drug interactions in our database — the Diltiazem, Enalapril one above is one of them. If you take anything else, check it against the full list below.

Moderate 171 No known interaction 2,659 (incl. Diltiazem, Enalapril)
Taking anything else?

Check Another of Your Medications Against Betony

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

Everything else you take

See Every Supplement That Interacts With Diltiazem, Enalapril

This page covers Betony only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diltiazem, Enalapril page lists 271 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), Asarabacca (major) and Coleus (major).

By severity: 9 major · 220 moderate · 42 minor.

From our pharmacist’s overview on the Diltiazem, Enalapril page

“Anyone taking Teczem (diltiazem with enalapril) for blood pressure should know that most of the 271 supplements with an interaction on file hit the same targets as the drug itself. The bulk either add to its blood-pressure-lowering effect or change how the body handles diltiazem, which is processed by an enzyme called CYP3A4.”

Reviewed by 2 · Jul 18, 2026

Open the Diltiazem, Enalapril interaction page

One more smart check

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

We hold 188 real supplement products containing Betony, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Betony. Your product may carry other ingredients that interact with Diltiazem, Enalapril too, on top of Betony — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Betony and Diltiazem, Enalapril 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 Betony
Top half

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

29 days ago today
Medication Diltiazem, Enalapril
Top 10%

#239 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.

Supplement

About Betony

What is Betony?

  • Headaches and tension
  • Anxiety and nervous tension
  • Digestive upset
  • Sore throat and mouth rinse
  • Mild diarrhea

Betony (Stachys officinalis) is a traditional European herb long used for headaches, nervous tension, and digestive complaints. Modern scientific evidence supporting these uses is very limited, and most claims rest on tradition rather than well-designed human studies. Talk with your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Read the full Betony monograph & all interactions
Keep checking

Other Drugs & Betony

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

0Major
171Moderate
0Minor
2,658No known interaction
171 Moderate 2,658 No interaction
Moderate

171 interactions

Showing 60 of 171 moderate interactions — see all 171 on the Betony page.

No interaction 2,658 drugs checked — show the list

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

Showing the 60 most looked-up of 2,658 medications checked with no known interaction — see the full Betony list.

See the full Betony interactions page
See every supplement checked against Diltiazem, Enalapril, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

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

Keep exploring
Betony monograph › Uses, safety, and every drug interaction in one place Diltiazem, Enalapril supplement interactions › Every supplement checked against Diltiazem, Enalapril, 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 Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Betony and Diltiazem, Enalapril Together: Common Questions

Can you take Betony with Diltiazem, Enalapril?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Betony and Diltiazem, Enalapril interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Diltiazem, Enalapril and Betony?

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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.