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Dietary supplement

Longjack Tongkat Ali Extract 900 mg Ingredients & Drug Interactions

by NusaPure

Longjack Tongkat Ali Extract 900 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Longjack Tongkat Ali Extract 900 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Longjack Tongkat Ali Extract 900 mg is a dietary supplement by NusaPure with 1 active ingredient. Its ingredients are commonly taken for low testosterone or low libido in men, male fertility support, athletic performance and muscle strength.Based on those ingredients, 248 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Longjack Tongkat Ali extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Longjack Tongkat Ali Extract 900 mg by NusaPure

Ask about any prescription or over-the-counter medication and we check it for interactions with Longjack Tongkat Ali Extract 900 mg by NusaPure — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Longjack Tongkat Ali Extract 900 mg by NusaPure

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 20, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Longjack Tongkat Ali extract, 900 mg per capsule. It's the dried, concentrated form of Eurycoma longifolia root, a plant used traditionally in Southeast Asia.

The capsules also contain inactive ingredients — cellulose, silica, magnesium stearate, and rice powder — which are standard fillers and binders that help hold the capsule together.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded Eurycoma Longifolia's overall clinical evidence instead.

Moderate

Some clinical evidence supports Eurycoma Longifolia for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Sexual desire — rated "Possibly Effective" (Natural Medicines).

The evidence here is limited. The extract is rated possibly effective for sexual desire based on available research.

For athletic performance, the data suggests it's probably not effective. For back pain, osteoporosis, and diabetes, we don't have enough reliable evidence to know either way.

If you're thinking about taking this for any of those last three, that's a conversation to have with your doctor.

The evidence, ingredient by ingredient Eurycoma Longifolia

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Short-term use appears generally well tolerated in studies, but we don't know much about what happens if you take it for months or years, and product quality can vary between brands. The safety data advises against use during pregnancy and while breastfeeding — the extract may affect hormone levels, and there isn't enough information to know it's safe for your baby.

Side effects, ingredient by ingredient Eurycoma Longifolia

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Eurycoma Longifolia.
  • The most serious interaction on file is rated Moderate.
  • For scale: 248 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your medications against this product before taking it, especially if you use propranolol (Inderal) for blood pressure or heart rhythm — the extract can make it less effective. Also flag any drugs broken down by CYP1A2, CYP2C19, or CYP2A6 liver enzymes, and testosterone replacement therapy.

Your pharmacist can tell you if your prescriptions fall into these categories.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

This is a single-ingredient supplement that may help with sexual desire, but it interacts with blood pressure medications and several other drug types through your liver. If you take any prescriptions — especially propranolol or hormone therapy — check them against the interaction tool on this page or talk with your pharmacist before starting.

Long-term safety is uncertain, so this is best used short-term and under guidance.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 24, 2022.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Longjack Tongkat Ali Extract 900 mg, straight from the product label.

Brand NusaPure
Barcode (UPC) X001O6IYRB
Net contents 180 Veg Cap(s)
Market status On market
Date entered into DSLD Oct 24, 2022
DSLD ID 274960
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Longjack Tongkat Ali Extract 900 mg by NusaPure, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Veggie Capsule(s)
Maximum serving Sizes:
2 Veggie Capsule(s)
Servings per container
90
UPC/BARCODE
X001O6IYRB
IngredientAmount% DV
Longjack Tongkat Ali extract900 mg--

Other ingredients: Cellulose, Silica, Magnesium Stearate, Rice powder

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

Directions: For adults, take two (2) capsules daily, preferably with a meal.

Precautions

Warning: This product is not intended for pregnant or nursing mothers or children under the age of 18.

Warning: This product is not intended for pregnant or nursing mothers or children under the age of 18. If you are pregnant, nursing or taking any medications, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of reach of children.

Allergen Information: Contains no artificial coloring, artificial flavors, corn starch, milk or milk derivatives, lactose, salt, sodium, soy, gluten, egg, wheat, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Storage

Store in cool dry place. Avoid excessive heat or moisture.

Formulation

Natural color variation may occur in this product.

Made with non-GMO ingredients GMO free FDA registered facility gluten free

Assembled in USA Natural Helps support already healthy testosterone levels Supports men's general health Supports the maintenance of already healthy energy levels

Max strength

Allergen Information: Contains no artificial coloring, artificial flavors, corn starch, milk or milk derivatives, lactose, salt, sodium, soy, gluten, egg, wheat, fish, shellfish or tree nut ingredients.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Seals/Symbols

Premium Quality Assembled in USA Gluten free FDA registered facility

Manufactured in a cGMP Inspected Facility

Formula

Longjack Tongkat Ali Extract 900 mg per serving

FDA Statement of Identity

Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Longjack Tongkat Ali Extract 900 mg by NusaPure label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Longjack Tongkat Ali Extract 900 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Longjack Tongkat Ali Extract 900 mg by NusaPure

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 Veggie Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Longjack Tongkat Ali extract

Interacts with
248 drugs
900 mg per serving

Eurycoma longifolia (tongkat ali) is a Southeast Asian herb most popular for supporting testosterone, libido, and male fertility, with some small huma...

Longjack Tongkat Ali extract monograph & interactions

Other (inactive) ingredients: Cellulose, Silica, Magnesium Stearate, Rice powder. These complete the product’s ingredient list but are not active constituents.

Interaction report

Longjack Tongkat Ali Extract 900 mg by NusaPure Drug Interactions

Want to check YOUR meds against Longjack Tongkat Ali Extract 900 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
248Drugs
3 Moderate 245 Minor

Ingredients driving the most interactions

Longjack Tongkat Ali extract 248

Individual Drug Interactions

The ingredients in Longjack Tongkat Ali Extract 900 mg interact with 248 drugs. Click any drug to see the details.

1 of the 1 ingredient in Longjack Tongkat Ali Extract 900 mg interact with drugs. Each result below shows which ingredient is responsible. Longjack Tongkat Ali extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Longjack Tongkat Ali Extract 900 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Longjack Tongkat Ali extract5 drug types · 248 drugs

Propranolol (Inderal)

Eurycoma longifolia can reduce the levels and clinical effects of propranolol.
A small clinical study in healthy persons shows that taking a single dose of a water-based Eurycoma longifolia extract 200 mg, in combination with a single dose of propranolol 80 mg, reduces the propranolol area under the curve (AUC) by 29%, reduces the peak concentration by 42%, and increases time to peak concentration by 86% when compared with control. Since the elimination half-life of propranolol did not change, it seems that Eurycoma longifolia alters the kinetics of propranolol by decreasing its absorption in the gut, and not by altering its metabolism. It is not known if separating administration will prevent this interaction.

Likelihood Probable Evidence A
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, Eurycoma longifolia might increase levels CYP1A2 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP1A2 enzymes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2A6 (Cyp2A6) Substrates

Theoretically, Eurycoma longifolia might increase levels of CYP2A6 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2A6 enzymes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, Eurycoma longifolia might increase levels of CYP2C19 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2C19 enzymes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Testosterone

Theoretically, Eurycoma longifolia may further increase levels of testosterone.
A clinical study in aging males with testosterone levels below 300 ng/dL shows that taking a specific water extract of Eurycoma longifolia roots (Physta; Biotropics Malaysia) 100-200 mg daily with breakfast for 12 weeks increases total testosterone levels by 8% to 11% when compared with placebo. It is unclear whether this increase would occur in individuals with normal testosterone levels.

Likelihood Possible Evidence D
Longjack Tongkat Ali extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Longjack Tongkat Ali Extract 900 mg, from the product label.

NusaPure

See all NusaPure products
Name
Gmax Central LLC
Street Address
4700 Millenia Boulevard, Suite 175 PMB 92909
City
Orlando
State
FL
ZipCode
32839
Pharmacist Counseling Corner

Longjack Tongkat Ali Extract 900 mg by NusaPure: Common Questions

Does Longjack Tongkat Ali Extract 900 mg by NusaPure interact with any medications?
Yes. Based on its ingredients, Longjack Tongkat Ali Extract 900 mg has a known interaction with 248 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Longjack Tongkat Ali Extract 900 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will this actually help with sexual desire?
The evidence says possibly — some studies support it, but the data isn't rock-solid. It's worth trying if you're interested, but results vary from person to person. Talk with your doctor if you're not seeing a change after a few weeks.
Is it safe to take long-term?
We know short-term use is generally well tolerated, but we don't have solid long-term safety data. If you're thinking of taking it regularly for months, check in with your pharmacist about what that looks like for you.
Can I take this if I'm trying to get pregnant or breastfeeding?
The safety data advises against it during pregnancy because the extract may affect hormone levels, and there isn't enough information to know it's safe during breastfeeding. Talk with your doctor or midwife about timing and alternatives if you're planning a pregnancy.
What's the difference between this and other Tongkat Ali products?
This product contains one ingredient — the Tongkat Ali extract at 900 mg. Other brands may have different doses, different extract types (water-based vs. powder), or added ingredients. The dose and extraction method can affect how well it works and how it interacts with your medications.
Could this raise my testosterone too much?
Research shows this extract can increase testosterone levels in men with low testosterone. If you have normal or high levels, or if you take hormone therapy, the extra boost could potentially push you beyond the normal range and cause side effects like acne or liver stress. Your doctor can check your baseline testosterone if you're concerned.

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

Not sure if Longjack Tongkat Ali Extract 900 mg is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Longjack Tongkat Ali Extract 900 mg label
Go deeper

The Full Monographs Behind Longjack Tongkat Ali Extract 900 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Eurycoma Longifolia

Interacts with 248 drugs

Eurycoma longifolia (tongkat ali) is a Southeast Asian herb most popular for supporting testosterone, libido, and male fertility, with some small human studies suggesting possible benefits....

Read the full Eurycoma Longifolia monograph →
Sources

Sources & How We Checked

Longjack Tongkat Ali Extract 900 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 4 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Eurycoma Longifolia 4 references
  1. Salman SA, Amrah S, Wahab MS, et al. Modification of propranolol's bioavailability by Eurycoma longifolia water-based extract. J Clin Pharm Ther 2010;35:691-6. PubMed
  2. Tambi MI, Imran MK, Henkel RR. Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism? Andrologia 2011 Jun 15. doi: 10.1111/j.1439-0272.2011.01168.x. [Epub ahead of pri PubMed
  3. Han YM, Kim IS, Rehman SU, Choe K, Yoo HH. In vitro evaluation of the effects of Eurycoma longifolia extract on CYP-mediated drug metabolism. Evid Based Complement Alternat Med 2015;2015:631329.
  4. Chinnappan SM, George A, Pandey P, Narke G, Choudhary YK. Effect of Eurycoma longifolia standardised aqueous root extract-Physta ® on testosterone levels and quality of life in ageing male subjects: a randomised, double-blind, placebo-controlled multicent

See these in context on the Eurycoma Longifolia monograph →

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

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