Drug & supplement interaction

Combretum Micranthum + Doxazosin Mesylate

Doxazosin Mesylate brand name: Cardura.

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

Combretum Micranthum has a moderate interaction with Doxazosin Mesylate. Theoretically, taking Combretum micranthum leaf with antihypertensive drugs might increase the risk of hypotension.

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

Combretum Micranthum and Doxazosin Mesylate

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

Moderate

ANTIHYPERTENSIVE DRUGS

Why this applies to Doxazosin Mesylate

Doxazosin Mesylate falls under ANTIHYPERTENSIVE DRUGS — the group Combretum Micranthum interacts with.

Theoretically, taking Combretum micranthum leaf with antihypertensive drugs might increase the risk of hypotension.
Clinical research suggests that Combretum micranthum leaf reduces blood pressure.
Severity Moderate Likelihood Possible Evidence B

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: kinkeliba tea appears to lower blood pressure a bit on its own. Doxazosin already relaxes your blood vessels to bring blood pressure down, so stacking the two could nudge your pressure lower than you want. That can show up as feeling lightheaded, dizzy, or woozy, especially when you stand up quickly. With an alpha-blocker like doxazosin, that first-dose or standing-up dizziness is already a known thing, so the tea may make it more noticeable.

The good news is this is mostly theoretical and based on weaker evidence, so it's not a reason to panic. Doxazosin isn't a prodrug, so this is just two blood-pressure-lowering effects adding up. If you enjoy kinkeliba, just mention it to your pharmacist or doctor and watch for dizziness rather than starting or stopping anything on your own.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Bourqui A, Niang EAB, Graz B, et al. Hypertension treatment with Combretum micranthum or Hibiscus sabdariffa, as decoction or tablet: a randomized clinical trial. J Hum Hypertens 2020. PubMed
  2. Seck SM, Doupa D, Dia DG, et al. Clinical efficacy of African traditional medicines in hypertension: A randomized controlled trial with Combretum micranthum and Hibiscus sabdariffa. J Hum Hypertens 2017;32(1):75-81. PubMed

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

Combretum Micranthum Also Interacts With Other Medications

Combretum Micranthum has 264 moderate known drug interactions in our database — the Doxazosin Mesylate one above is one of them. If you take anything else, check it against the full list below.

Moderate 264 No known interaction 2,566 (incl. Doxazosin Mesylate)
Taking anything else?

Check Another of Your Medications Against Combretum Micranthum

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

From our Q&A

Questions About Combretum Micranthum or Doxazosin Mesylate

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Combretum Micranthum or Doxazosin Mesylate, 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 Doxazosin Mesylate

This page covers Combretum Micranthum only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Doxazosin Mesylate page lists 137 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), Tyramine (major) and Adrafinil (moderate).

By severity: 4 major · 112 moderate · 21 minor.

From our pharmacist’s overview on the Doxazosin Mesylate page

“Doxazosin (Cardura) relaxes blood vessels to lower blood pressure and ease enlarged-prostate symptoms, and it already has a reputation for dizziness and first-dose fainting. That is why its list of 137 interacting supplements deserves genuine respect.”

Reviewed by 2 · Jul 18, 2026

Open the Doxazosin Mesylate interaction page

How much people look this up

Where Combretum Micranthum and Doxazosin Mesylate 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 Combretum Micranthum
Steady interest

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

29 days ago today
Medication Doxazosin Mesylate
Top half

#779 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 Combretum Micranthum

What is Combretum Micranthum?

Combretum Micranthum
  • Digestive upset
  • Liver and gallbladder support
  • Fever
  • Weight management
  • Mild urinary or fluid retention
  • Traditional opium withdrawal aid

Combretum micranthum (kinkeliba) is a West African shrub whose leaves are brewed into a traditional tea for digestion, liver complaints, and fever. Solid human studies are lacking, so its benefits remain unproven, and people who are pregnant, breastfeeding, or have liver or kidney problems should be cautious and talk to a healthcare professional first.

Read the full Combretum Micranthum monograph & all interactions
Medication

About Doxazosin

What Is Doxazosin Used For?

Brand name: Cardura

Doxazosin tablets (Cardura, Doxazosin, Doxazosin mesylate) are approved to treat the signs and symptoms of benign prostatic hyperplasia (BPH) — an enlarged prostate that causes urinary problems — and to treat high blood pressure (hypertension). Lowering blood pressure reduces the risk of stroke and heart attack. Doxazosin tablets may be used alone or combined with other blood pressure medicines.

Cardura XL (the extended-release tablet) is approved only for BPH symptoms. Cardura XL is not approved for high blood pressure.

See full Doxazosin drug information
Keep checking

Other Drugs & Combretum Micranthum

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

0Major
264Moderate
0Minor
2,565No known interaction
264 Moderate 2,565 No interaction
Moderate

264 interactions

Showing 60 of 264 moderate interactions — see all 264 on the Combretum Micranthum page.

No interaction 2,565 drugs checked — show the list

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

Showing the 60 most looked-up of 2,565 medications checked with no known interaction — see the full Combretum Micranthum list.

See the full Combretum Micranthum interactions page
See every supplement checked against Doxazosin Mesylate, 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
Combretum Micranthum monograph › Uses, safety, and every drug interaction in one place Doxazosin Mesylate supplement interactions › Every supplement checked against Doxazosin Mesylate, ranked by severity Doxazosin drug information › The full plain-English guide to this medication 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 Combretum Micranthum and Doxazosin Mesylate Together: Common Questions

Can you take Combretum Micranthum with Doxazosin Mesylate?
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 Combretum Micranthum and Doxazosin Mesylate 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 Doxazosin Mesylate and Combretum Micranthum?

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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.