Drug & supplement interaction

Beta-methylphenethylamine (bmpea) + Dexbrompheniramine, Pseudoephedrine

Dexbrompheniramine, Pseudoephedrine brand names: Disophrol, Drixoral, Drexophed Sr, Pharmadrine.

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

Beta-methylphenethylamine (bmpea) has a moderate interaction with Dexbrompheniramine, Pseudoephedrine. Theoretically, taking BMPEA with other stimulant drugs might increase the risk of adverse cardiovascular effects.

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

Beta-methylphenethylamine (bmpea) and Dexbrompheniramine, Pseudoephedrine

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

Moderate

STIMULANT DRUGS

Why this applies to Dexbrompheniramine, Pseudoephedrine

Dexbrompheniramine, Pseudoephedrine falls under STIMULANT DRUGS — the group Beta-methylphenethylamine (bmpea) interacts with.

Theoretically, taking BMPEA with other stimulant drugs might increase the risk of adverse cardiovascular effects.
BMPEA is thought to have stimulant effects, including cardiovascular effects such as hypertension, tachycardia, and cardiac arrest.
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

Here's the simple version: the pseudoephedrine in your Drixoral-type product is itself a stimulant. It's a decongestant that can already nudge your heart rate and blood pressure up a bit. BMPEA is an amphetamine-like stimulant too, so stacking the two means you're piling one stimulant on top of another.

The worry is that together they could push your blood pressure higher, cause a racing or pounding heart, jitteriness, headache, or trouble sleeping. This concern is theoretical, based on how these compounds behave rather than solid human studies, so I'm not trying to scare you. Still, BMPEA is an unapproved, poorly studied ingredient, and I'd steer clear of it. Please run any combo like this past your pharmacist or doctor first.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Cohen PA, Bloszies C, Yee C, Gerona R. An amphetamine isomer whose efficacy and safety in humans has never been studied, ß-methylphenylethylamine (BMPEA), is found in multiple dietary supplements. Drug Test Anal. 2015 Apr 7. PubMed
  2. Brown DH, Hansson R, Oosthuizen F, et al. ß-Methylphenylethylamines: common fragmentation pathways with amphetamines in electrospray ionization collision-induced dissociation. Drug Test Anal 2016;8:344-50.

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

Beta-methylphenethylamine (bmpea) Also Interacts With Other Medications

Beta-methylphenethylamine (bmpea) has 812 moderate known drug interactions in our database — the Dexbrompheniramine, Pseudoephedrine one above is one of them. If you take anything else, check it against the full list below.

Moderate 812 No known interaction 2,018 (incl. Dexbrompheniramine, Pseudoephedrine)
Taking anything else?

Check Another of Your Medications Against Beta-methylphenethylamine (bmpea)

Covers the 2,830 medications we’ve checked against Beta-methylphenethylamine (bmpea). Pick one to open its full report.

Everything else you take

See Every Supplement That Interacts With Dexbrompheniramine, Pseudoephedrine

This page covers Beta-methylphenethylamine (bmpea) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Dexbrompheniramine, Pseudoephedrine page lists 88 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Ephedra (major), Peyote (major), Rauvolfia Vomitoria (major) and Sida Cordifolia (major).

By severity: 5 major · 69 moderate · 14 minor.

From our pharmacist’s overview on the Dexbrompheniramine, Pseudoephedrine page

“Ephedra is the supplement I would rule out first for anyone taking dexbrompheniramine and pseudoephedrine (Drixoral, Disophrol), an antihistamine and decongestant combination for colds and allergies. Pseudoephedrine already stimulates the heart and raises blood pressure, and stacking a stimulant herb on top accounts for four of the fiv…”

Reviewed by 2 · Jul 18, 2026

Open the Dexbrompheniramine, Pseudoephedrine interaction page

How much people look this up

Where Beta-methylphenethylamine (bmpea) and Dexbrompheniramine, Pseudoephedrine 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 Beta-methylphenethylamine (bmpea)
Steady interest

#1,396 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Dexbrompheniramine, Pseudoephedrine
Steady interest

#2,733 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 Beta-methylphenethylamine (bmpea)

What is Beta-methylphenethylamine (bmpea)?

  • Weight loss
  • Pre-workout energy
  • Athletic performance
  • Appetite suppression
  • Mental focus

Beta-methylphenethylamine (BMPEA) is a synthetic stimulant chemically similar to amphetamine that has been found in some weight-loss and sports supplements, often without being clearly listed on the label. It is not an approved or well-studied dietary ingredient, and regulators have warned that it may carry real cardiovascular risks. Because of safety concerns and the lack of human research, it is best avoided.

Read the full Beta-methylphenethylamine (bmpea) monograph & all interactions
Keep checking

Other Drugs & Beta-methylphenethylamine (bmpea)

Browse every other medication we’ve checked against Beta-methylphenethylamine (bmpea) — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
812Moderate
0Minor
2,017No known interaction
812 Moderate 2,017 No interaction
Moderate

812 interactions

Showing 60 of 812 moderate interactions — see all 812 on the Beta-methylphenethylamine (bmpea) page.

No interaction 2,017 drugs checked — show the list

We also checked Beta-methylphenethylamine (bmpea) against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,017 medications checked with no known interaction — see the full Beta-methylphenethylamine (bmpea) list.

See the full Beta-methylphenethylamine (bmpea) interactions page
See every supplement checked against Dexbrompheniramine, Pseudoephedrine, 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
Beta-methylphenethylamine (bmpea) monograph › Uses, safety, and every drug interaction in one place Dexbrompheniramine, Pseudoephedrine supplement interactions › Every supplement checked against Dexbrompheniramine, Pseudoephedrine, 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 Beta-methylphenethylamine (bmpea) and Dexbrompheniramine, Pseudoephedrine Together: Common Questions

Can you take Beta-methylphenethylamine (bmpea) with Dexbrompheniramine, Pseudoephedrine?
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 Beta-methylphenethylamine (bmpea) and Dexbrompheniramine, Pseudoephedrine 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

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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.