Drug & supplement interaction

19-nor-dhea + Metoprolol

Metoprolol brand names: Lopressor, Toprol XL.

No Known Interaction
The bottom line No known interaction

We found no known interaction between 19-nor-dhea and Metoprolol 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 label for Metoprolol states a food rule worth keeping to.

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Interaction report

19-nor-dhea and Metoprolol

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 Metoprolol and 19-nor-dhea 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.

19-nor-dhea safety at a glance

19-nor-dhea overall Avoid It is an unproven hormonal prohormone with potential serious side effects and little safety data.
Pregnancy Avoid Hormone-altering products should not be used during pregnancy.
Breastfeeding Avoid Avoid while breastfeeding due to hormonal effects and lack of safety data.

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

Still wondering about combining Metoprolol and 19-nor-dhea? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Metoprolol

Interactions in our licensed database are recorded against drug classes, not just single drug names. Metoprolol is filed under 6 classifications — including beta-blockers, antihypertensive drugs, cytochrome p450 2d6 (cyp2d6) substrates. 19-nor-dhea has documented interactions with 1 drug class — the most serious being testosterone (moderate) — and none of Metoprolol’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

19-nor-dhea Does Interact With Other Medications

19-nor-dhea has 8 moderate known drug interactions in our database — Metoprolol isn’t one of them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against 19-nor-dhea

Covers the 2,830 medications we’ve checked against 19-nor-dhea. Pick one to open its full report.

What to actually watch for

What Metoprolol’s Own FDA Label Lists

This is not an interaction — none of it involves 19-nor-dhea. These are the most notable effects listed in the ADVERSE REACTIONS section of Metoprolol’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 take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Memory problems Worth acting on
  • A slow heartbeat Worth acting on
  • A heart attack Worth acting on
  • Hallucinations Worth acting on
  • Heart failure Worth acting on
  • Fainting Worth acting on
  • Wheezing Worth acting on
  • Confusion Worth acting on
  • Chest pain Worth acting on
  • Low mood Worth acting on

Showing the 10 most notable of 47 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 Metoprolol. Read the label on DailyMed › 19-nor-dhea’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no 19-nor-dhea side to compare — that is a limit of the record, not a statement that 19-nor-dhea has no side effects.

How to take them

Some Metoprolol Products Have a Food Rule — 19-nor-dhea Should Not Break It

At least one FDA label for a product containing Metoprolol says to take it with food. If you take 19-nor-dhea on an empty stomach out of habit, keep them separate — and take Metoprolol with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Metoprolol products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Administer once daily with food or after a meal.

From the Dosage and Administration section of the FDA label we read for Metoprolol — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

From our Q&A

Questions About 19-nor-dhea or Metoprolol

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers 19-nor-dhea or Metoprolol, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Metoprolol

This page covers 19-nor-dhea only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Metoprolol page lists 183 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), Indian Snakeroot (major) and Tyramine (major).

By severity: 5 major · 152 moderate · 26 minor.

From our pharmacist’s overview on the Metoprolol page

“With metoprolol (Lopressor, Toprol XL), a beta-blocker for high blood pressure and heart problems, these interactions deserve genuine care, starting with the five rated major. Most entries pull blood pressure one way or the other: many supplements add to metoprolol's lowering effect and can drop pressure too far, while a few, tyramine…”

Reviewed by 2 · Jul 18, 2026

Open the Metoprolol interaction page

One more smart check

Taking 19-nor-dhea as Part of a Dietary Supplement Product? Check It for Interactions

We hold 12 real supplement products containing 19-nor-dhea, each one broken down to its full ingredient list — and combination products often carry several ingredients besides 19-nor-dhea. Even though 19-nor-dhea itself has no known interaction with Metoprolol, 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 19-nor-dhea and Metoprolol 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 19-nor-dhea
Top half

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

29 days ago today
Medication Metoprolol
Top 10

#7 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. 19-nor-dhea 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 19-nor-dhea reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The 19-nor-dhea and Metoprolol 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 .
Supplement

About 19-nor-dhea

What is 19-nor-dhea?

  • Muscle building and bodybuilding
  • Increasing strength
  • Athletic performance
  • Supporting hormone levels
  • Body recomposition

19-nor-DHEA is a synthetic 'prohormone' marketed to bodybuilders as a precursor to nandrolone-like compounds, not a natural plant supplement. There is very little reliable human research on its safety or effectiveness, and products like it carry real risks to the liver, hormones, and heart. We do not recommend using it without close medical supervision, and it may be banned in sports and restricted by law in some places.

Not applicable (a synthetic or semi-synthetic hormone derivative, not a plant part) · Capsules, tablets, sublingual tablets, sometimes combined in 'prohormone' supplement blends

An interaction check asks whether these two react with each other — it does not ask whether 19-nor-dhea is a good idea for someone in your situation. Here is what our 19-nor-dhea record says about it on its own.

19-nor-dhea: dosing

There is no established or medically recommended dose for 19-nor-DHEA. It has not been studied well enough to define a safe and effective amount.Products vary widely, and labels may not be accurate. Because of this, we cannot suggest a specific milligram amount.

From our 19-nor-dhea monograph — the full record covers uses, side effects and every documented interaction.

Read the full 19-nor-dhea monograph & all interactions
Medication

About Metoprolol

What Is Metoprolol Used For?

Brand names: Lopressor, Toprol XL

Metoprolol is used to treat several heart and blood pressure conditions. Metoprolol succinate extended-release tablets (including Toprol-XL) are approved for high blood pressure, angina pectoris (chest pain from the heart), and heart failure. Metoprolol tartrate tablets (including Lopressor) are approved for high blood pressure, angina, and — when used alongside intravenous metoprolol — to reduce the risk of cardiovascular death after a definite or suspected heart attack.

Metoprolol tartrate injection (intravenous form) is used in hemodynamically stable patients with a definite or suspected acute heart attack to reduce cardiovascular death, and is followed by oral metoprolol therapy. Lowering blood pressure with metoprolol reduces the risk of strokes and heart attacks.

Most-Reported Side Effects for Metoprolol

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 23,416 reports
Dyspnea 20,183 reports
Diarrhea 19,912 reports
Nausea 19,659 reports
Dizziness 16,726 reports
See full Metoprolol drug information
Keep checking

Other Drugs & 19-nor-dhea

Browse every other medication we’ve checked against 19-nor-dhea — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
8Moderate
0Minor
2,821No known interaction
Moderate

8 interactions

No interaction 2,821 drugs checked — show the list
Evidence & sources

19-nor-dhea References

The 4 sources that drive our 19-nor-dhea monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. 19-nor-dhea is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. DHEA — MedlinePlus (NIH) Source
  2. Dietary Supplements for Exercise and Athletic Performance — NIH Office of Dietary Supplements Source
  3. Dietary Supplements: What You Need to Know — NIH Office of Dietary Supplements Source
  4. FDA 101: Dietary Supplements — U.S. Food and Drug Administration 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

Taking 19-nor-dhea and Metoprolol Together: Common Questions

Is it safe to take 19-nor-dhea with Metoprolol?
We do not list a known interaction between 19-nor-dhea and Metoprolol. 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.
Should I take 19-nor-dhea and Metoprolol at the same time of day?
At least one FDA label for a product containing Metoprolol says to take it with food. If you take 19-nor-dhea on an empty stomach out of habit, keep them separate and take Metoprolol with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Metoprolol products can differ — so check the directions on your own box. This is about absorption, not an interaction.
How was the 19-nor-dhea and Metoprolol combination checked?
Interactions in our licensed database are recorded against drug classes. Metoprolol is filed under 6 classifications, and 19-nor-dhea has documented interactions with 1 drug class — none of Metoprolol'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 19-nor-dhea interact with any other medications?
Yes. 19-nor-dhea has 8 documented drug interactions in our database — Metoprolol 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 Metoprolol interact with any supplements?
Yes. Metoprolol has documented interactions with 183 supplements in our database — 19-nor-dhea is not one of them. The Metoprolol interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Metoprolol and 19-nor-dhea?

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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.