Drug & supplement interaction

Higenamine + Lenacapavir

Lenacapavir brand name: Sunlenca.

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

Higenamine has a moderate interaction with Lenacapavir. Theoretically, higenamine might increase the levels and clinical effects drugs metabolized by CYP3A4.

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

Higenamine and Lenacapavir

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

Moderate

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES

Why this applies to Lenacapavir

Lenacapavir falls under CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES — the group Higenamine interacts with.

Theoretically, higenamine might increase the levels and clinical effects drugs metabolized by CYP3A4.
In vitro research shows that higenamine inhibits CYP3A4 enzymes by 21%. However, this effect has not been reported in humans.
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 gist for Lenacapavir (Sunlenca), your long-acting HIV medicine. Your body partly clears it using a liver enzyme called CYP3A4. In a test-tube study, higenamine slowed that enzyme down by about 21%. If that held true in people, lenacapavir might clear a bit more slowly and its levels could creep up.

Now the honest part: this is only lab-dish data, and it has not been shown to happen in real patients. So I wouldn't lose sleep over it. Lenacapavir isn't a prodrug, so higher levels would mean more drug effect, not less protection. My bigger worry with higenamine is its stimulant punch on your heart rate and blood pressure. Please run it by your pharmacist or HIV doctor before combining the two.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Liu Y, Santillo MF. Cytochrome P450 2D6 and 3A4 enzyme inhibition by amine stimulants in dietary supplements. Drug Test Anal. 2016;8(3-4):307-10. 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

Higenamine Also Interacts With Other Medications

Higenamine has 890 moderate known drug interactions in our database — the Lenacapavir one above is one of them. If you take anything else, check it against the full list below.

Moderate 890 No known interaction 1,940 (incl. Lenacapavir)
Taking anything else?

Check Another of Your Medications Against Higenamine

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

Everything else you take

See Every Supplement That Interacts With Lenacapavir

This page covers Higenamine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lenacapavir page lists 138 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Acacia Rigidula (moderate) and Adrafinil (moderate).

By severity: 3 major · 94 moderate · 41 minor.

From our pharmacist’s overview on the Lenacapavir page

“Lenacapavir (Sunlenca) treats HIV that has resisted other regimens, so keeping its blood level steady is not optional, and its list of 138 interacting supplements deserves genuine care. Nearly all of them, 121 ingredients, can shift how the body handles lenacapavir through the CYP3A4 enzyme, either pushing its level up along with side…”

Reviewed by 2 · Jul 18, 2026

Open the Lenacapavir interaction page

One more smart check

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

We hold 154 real supplement products containing Higenamine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Higenamine. Your product may carry other ingredients that interact with Lenacapavir too, on top of Higenamine — 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 Higenamine and Lenacapavir 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 Higenamine
Top 25%

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

29 days ago today
Medication Lenacapavir
Steady interest

#1,641 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 Higenamine

What is Higenamine?

  • Weight loss and fat burning
  • Pre-workout energy and performance
  • Appetite suppression
  • Athletic stimulant
  • Traditional medicine remedies

Higenamine is a plant-based stimulant compound added to many weight-loss and pre-workout supplements, but there is very little human evidence that it works and real concerns about heart and blood pressure effects. It is banned in sports by the World Anti-Doping Agency (WADA), and product labels often list inaccurate amounts, so most people should approach it with caution and talk to a pharmacist or doctor first.

Read the full Higenamine monograph & all interactions
Medication

About Lenacapavir Oral

What Is Lenacapavir Oral Used For?

Brand name: Sunlenca

Sunlenca tablets are used in two situations: to treat HIV-1 infection in adults whose virus has become resistant to multiple antiretroviral drugs and whose current regimen is failing — always in combination with other antiretrovirals — and as a short oral loading dose to start the BIXLENVO complete HIV-1 treatment regimen in adults who are already virologically suppressed (virus undetectable) and switching from a stable antiretroviral regimen.

Yeztugo tablets are used as part of HIV-1 pre-exposure prophylaxis (PrEP) — helping HIV-negative people reduce their risk of getting HIV-1. The oral tablet form is used during initiation of Yeztugo, and also as a temporary oral bridge if a scheduled injection must be delayed more than two weeks.

See full Lenacapavir Oral drug information
Keep checking

Other Drugs & Higenamine

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

0Major
890Moderate
0Minor
1,939No known interaction
890 Moderate 1,939 No interaction
Moderate

890 interactions

Showing 60 of 890 moderate interactions — see all 890 on the Higenamine page.

No interaction 1,939 drugs checked — show the list

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

Showing the 60 most looked-up of 1,939 medications checked with no known interaction — see the full Higenamine list.

See the full Higenamine interactions page
See every supplement checked against Lenacapavir, 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
Higenamine monograph › Uses, safety, and every drug interaction in one place Lenacapavir supplement interactions › Every supplement checked against Lenacapavir, ranked by severity Lenacapavir Oral 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 Higenamine and Lenacapavir Together: Common Questions

Can you take Higenamine with Lenacapavir?
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 Higenamine and Lenacapavir 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 Lenacapavir and Higenamine?

Our pharmacists answer your medication & supplement questions — free.

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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.