Drug & supplement interaction

Levant Berry + Testosterone

Testosterone brand names: Intrinsa, Testim, Androgel, Andropatch, Testogel, and others.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Levant Berry and Testosterone 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 two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Levant Berry and Testosterone

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 Testosterone and Levant Berry 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.

Worth understanding: our licensed dataset holds no drug-interaction record for Levant Berry at all — not against Testosterone, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

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.

Levant Berry safety at a glance

Levant Berry overall Avoid The berry contains picrotoxin, a potent toxin that can cause seizures and death.
Pregnancy Avoid Avoid completely; the plant is poisonous and unsafe.
Breastfeeding Likely Unsafe When used orally or topically; avoid using. Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Testosterone and Levant Berry? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Levant Berry and Testosterone May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. 2 of them are worth acting on rather than waiting out — marked below.

  • Fainting / Low mood Worth acting on Additional detail

    Levant Berry

    “Picrotoxin is a GI irritant and central nervous system stimulant (6). Mild poisoning can lead to headache, dizziness, nausea, coordination disturbances, depression, and spasms or twitching (18). Larger amounts can cause salivation, vomiting, purging, rapid shallow breathing, drowsiness, palpitations or bradycardia, tonic-clonic spasms, stupor, loss of consciousness, and death (6).”

    Levant Berry · Natural Medicines adverse-effect record, reported in cluster headache.

    2 sources cited
    1. 6. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
    2. 18. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

    Testosterone

    Listed in the ADVERSE REACTIONS section of the FDA label for Testosterone. Read the label on DailyMed ›

  • Dizziness / Headache / Nausea Additional detail

    Levant Berry

    Recorded for Levant Berry in the same Natural Medicines adverse-effect record shown under Fainting / Low mood above.

    Testosterone

    Listed in the ADVERSE REACTIONS section of the FDA label for Testosterone. Read the label on DailyMed ›

Reported for Levant Berry but not commonly for Testosterone: a fast or pounding heartbeat, a slow heartbeat, drowsiness and vomiting.

Effects for Testosterone come from the ADVERSE REACTIONS section of its FDA label; effects for Levant Berry come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Levant Berry in Pregnancy & Breastfeeding

Lactation Likely Unsafe

When used orally or topically; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Levant Berry or Testosterone

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Levant Berry or Testosterone, 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 Testosterone

This page covers Levant Berry only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Testosterone page lists 170 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Beer (major), Grapefruit (major), Siberian Cocklebur (major), St. John's Wort (major) and Wine (major).

By severity: 5 major · 129 moderate · 36 minor.

From our pharmacist’s overview on the Testosterone page

“The supplement list for testosterone therapy (Androgel, Testim, Nebido, and others) deserves real attention, mainly because five of its 170 entries are rated major and four of those are everyday items: grapefruit, St. John's wort, and alcohol in the form of beer or wine.”

Reviewed by 2 · Jul 18, 2026

Open the Testosterone interaction page

One more smart check

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

We hold 1 real supplement products containing Levant Berry, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Levant Berry. Even though Levant Berry itself has no known interaction with Testosterone, 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 Levant Berry and Testosterone 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 Levant Berry
Steady interest

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

29 days ago today
Medication Testosterone
Top 1%

#15 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.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Levant Berry reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Levant Berry and Testosterone records this page draws on were last updated July 11, 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 Levant Berry

What is Levant Berry?

  • Historically as a fish poison (stunning fish)
  • Topical preparations for lice and skin parasites
  • Traditional remedies for epilepsy and convulsions
  • Old preparations for skin conditions
  • Source of the compound picrotoxin

Levant Berry (Anamirta cocculus) is a highly toxic plant fruit that contains picrotoxin, a powerful poison once used to stun fish and, in the past, as a crude medicine. It is dangerous and is not considered a safe dietary supplement; it should not be taken internally.

Anamirta cocculus · Menispermaceae · Dried ripe fruit (berry/seed) · Historically used as a crude dried berry; today rarely used and not recommended internally

An interaction check asks whether these two react with each other — it does not ask whether Levant Berry is a good idea for someone in your situation. Here is what our Levant Berry record says about it on its own.

Levant Berry: dosing

There is no established or recommended dose for Levant Berry, because it is toxic and not used as a safe supplement. We cannot provide a dose and strongly advise against taking it internally in any amount.If you encounter a product that lists this ingredient, do not use it without first checking with a pharmacist or doctor. A licensed health professional can help you choose safer, proven options.

From our Levant Berry monograph — the full record covers uses, side effects and every documented interaction.

Read the full Levant Berry monograph & all interactions
Medication

About Testosterone

What Is Testosterone Used For?

Brand names: Intrinsa, Testim, Androgel, Andropatch, Testogel, Nebido, Delatestryl, Natesto, Vogelxo

Testosterone replacement therapy is used in adult males whose bodies do not produce enough of their own testosterone. This includes primary hypogonadism — where the testes themselves fail due to causes such as Klinefelter's syndrome, injury, chemotherapy, or surgical removal — and hypogonadotropic hypogonadism, where the brain's signaling system (the hypothalamus or pituitary gland) fails to trigger testosterone production.

Testopel (subcutaneous pellets) may also be used to stimulate puberty in carefully selected males with clearly delayed puberty. The safety and efficacy of testosterone for age-related (late-onset) hypogonadism have not been established for most products, including AndroGel, Testim, Jatenzo, Kyzatrex, Natesto, Depo-Testosterone, Testosterone Cypionate, and Xyosted.

Most-Reported Side Effects for Testosterone

From FAERS, the FDA’s public side-effect reporting system (34,758 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 1,854 reports
Myocardial infarction 1,728 reports
Cerebrovascular accident 1,290 reports
Deep vein thrombosis 1,240 reports
Anxiety 1,199 reports
See full Testosterone drug information
Keep checking

Other Drugs & Levant Berry

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

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

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

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Levant Berry list.

See the full Levant Berry interactions page
See every supplement checked against Testosterone, ranked by severity
Evidence & sources

Levant Berry References

The 2 references that drive our Levant Berry monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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 Levant Berry and Testosterone Together: Common Questions

Is it safe to take Levant Berry with Testosterone?
We do not list a known interaction between Levant Berry and Testosterone. 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.
Do Levant Berry and Testosterone have any of the same side effects?
Yes — our sources link each of them separately to 5 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Does Testosterone interact with any supplements?
Yes. Testosterone has documented interactions with 170 supplements in our database — Levant Berry is not one of them. The Testosterone interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Levant Berry monograph Uses, safety profile, and every drug interaction in one place Testosterone drug information The full plain-English guide to this medication Testosterone supplement interactions Every supplement checked against Testosterone, 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 References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Testosterone and Levant Berry?

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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.