Drug & supplement interaction

Rauwolscine + Azatadine, Pseudoephedrine

Azatadine, Pseudoephedrine brand name: Trinalin.

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

Azatadine, Pseudoephedrine falls into 2 drug categories that Rauwolscine can interact with; the most serious is rated moderate. Theoretically, taking rauwolscine with seizure threshold lowering drugs might increase the risk of adverse convulsant effects.

Read the full interaction report
SeverityModerate
LikelihoodPossible
Interactions2
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Rauwolscine and Azatadine, Pseudoephedrine

These two interact in 2 distinct ways. Each one is explained separately below.

Why Are There 2 Interactions?

Rauwolscine interacts with whole categories of medication. Azatadine, Pseudoephedrine falls into 2 of those categories, so it can interact with Rauwolscine in 2 different ways. We’ve listed each one below — your overall risk is driven by the most serious of them (Moderate).

Moderate

SEIZURE THRESHOLD LOWERING DRUGS

1 of 2

Why this applies to Azatadine, Pseudoephedrine

Azatadine, Pseudoephedrine falls under SEIZURE THRESHOLD LOWERING DRUGS — the group Rauwolscine interacts with.

Theoretically, taking rauwolscine with seizure threshold lowering drugs might increase the risk of adverse convulsant effects.
In animal research, intraperitoneal rauwolscine lowered the seizure threshold level of the drug metrazol.
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

Trinalin combines azatadine (an antihistamine) with pseudoephedrine (a decongestant and stimulant). Here's the concern with rauwolscine: both pseudoephedrine and rauwolscine are stimulants, and on top of that, rauwolscine has been shown in animal studies to make the brain a little more prone to seizures. The worry is that stacking two stimulating products together could, in theory, nudge the seizure threshold lower.

I want to be honest about how shaky this evidence is. It comes from animal research only, not from people, so the real-world risk is likely small. Still, you might notice more jitteriness, a racing heart, higher blood pressure, or trouble sleeping with both on board. If you have a seizure history or heart issues, check with your pharmacist or doctor before combining them.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Aziz TA, Hussain SA, Mahwi TO, Ahmed ZA, Rahman HS, Rasedee A. The efficacy and safety of Ginkgo biloba extract as an adjuvant in type 2 diabetes mellitus patients ineffectively managed with metformin: a double-blind, randomized, placebo-controlled trial.
Moderate

STIMULANT DRUGS

2 of 2

Azatadine, Pseudoephedrine also falls under STIMULANT DRUGS.

Theoretically, taking rauwolscine with stimulant drugs might increase the risk of adverse stimulant effects.
Rauwolscine has demonstrated stimulant effects in animal research.
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

Trinalin is a combination product, and the part that matters here is the pseudoephedrine, which is a decongestant that works by stimulating your system. It can already nudge up your heart rate and blood pressure and leave some people feeling jittery or wired. Rauwolscine is itself a stimulant that may boost your body's natural norepinephrine, so the worry is that stacking the two could pile on those same effects.

In plain terms, taking them together might make you more likely to feel a racing or pounding heart, higher blood pressure, restlessness, anxiety, or trouble sleeping. I'll be honest though: this concern is based mostly on animal research, so it's more theoretical than proven. Still, if you have any heart or blood pressure issues, it's worth a quick chat with your pharmacist or doctor before combining them.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Aziz TA, Hussain SA, Mahwi TO, Ahmed ZA, Rahman HS, Rasedee A. The efficacy and safety of Ginkgo biloba extract as an adjuvant in type 2 diabetes mellitus patients ineffectively managed with metformin: a double-blind, randomized, placebo-controlled trial.

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

Rauwolscine Also Interacts With Other Medications

Rauwolscine has 676 moderate known drug interactions in our database — the Azatadine, Pseudoephedrine one above is among them. If you take anything else, check it against the full list below.

Moderate 676 No known interaction 2,154 (incl. Azatadine, Pseudoephedrine)
Taking anything else?

Check Another of Your Medications Against Rauwolscine

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

Everything else you take

See Every Supplement That Interacts With Azatadine, Pseudoephedrine

This page covers Rauwolscine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Azatadine, 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 Azatadine, Pseudoephedrine page

“Trinalin pairs azatadine, an antihistamine, with pseudoephedrine, a decongestant that revs up the heart and raises blood pressure, and that stimulant half is why this list of 88 interacting supplements calls for real care. Half the entries are stimulant pairings, everything from everyday caffeine to ephedra, and four of the five major-…”

Reviewed by 2 · Jul 18, 2026

Open the Azatadine, Pseudoephedrine interaction page

One more smart check

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

We hold 196 real supplement products containing Rauwolscine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Rauwolscine. Your product may carry other ingredients that interact with Azatadine, Pseudoephedrine too, on top of Rauwolscine — 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 Rauwolscine and Azatadine, 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 Rauwolscine
Top 25%

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

29 days ago today
Medication Azatadine, Pseudoephedrine
Top half

#1,408 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 Rauwolscine

What is Rauwolscine?

  • Fat loss and weight management
  • Bodybuilding and physique support
  • Energy and stimulant effects
  • Athletic performance
  • Libido support

Rauwolscine (alpha-yohimbine) is a stimulant alkaloid closely related to yohimbine that is marketed mainly in fat-burning and pre-workout supplements. Human evidence for its benefits is very limited, and it can raise heart rate and blood pressure and cause anxiety, so it should be used with caution and is not recommended for people with heart conditions, anxiety, or during pregnancy or breastfeeding.

Read the full Rauwolscine monograph & all interactions
Keep checking

Other Drugs & Rauwolscine

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

0Major
676Moderate
0Minor
2,153No known interaction
676 Moderate 2,153 No interaction
Moderate

676 interactions

Showing 60 of 676 moderate interactions — see all 676 on the Rauwolscine page.

No interaction 2,153 drugs checked — show the list

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

Showing the 60 most looked-up of 2,153 medications checked with no known interaction — see the full Rauwolscine list.

See the full Rauwolscine interactions page
See every supplement checked against Azatadine, 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
Rauwolscine monograph › Uses, safety, and every drug interaction in one place Azatadine, Pseudoephedrine supplement interactions › Every supplement checked against Azatadine, 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 Rauwolscine and Azatadine, Pseudoephedrine Together: Common Questions

Can you take Rauwolscine with Azatadine, 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.
Why are there 2 interactions listed for Rauwolscine and Azatadine, Pseudoephedrine?
Azatadine, Pseudoephedrine belongs to more than one drug category, and Rauwolscine interacts with each of those categories a little differently. We list every one so nothing is missed — your overall risk is driven by the most serious of them.
How serious is the Rauwolscine and Azatadine, 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.