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Dietary supplement

Tongkat Ali Express 100 mg Ingredients & Drug Interactions

by Amazing Herbs

Tongkat Ali Express 100 mg label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Oct 7, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Tongkat Ali Express 100 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

Tongkat Ali Express 100 mg is a dietary supplement by Amazing Herbs 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, 249 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are 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 Tongkat Ali Express 100 mg by Amazing Herbs

Ask about any prescription or over-the-counter medication and we check it for interactions with Tongkat Ali Express 100 mg by Amazing Herbs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Tongkat Ali Express 100 mg by Amazing Herbs

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 Sep 17, 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.

Tongkat Ali Express is a liquid supplement containing one active ingredient: Tongkat Ali extract at 100 mg per dose. The extract comes from the roots of Eurycoma longifolia, a plant traditionally used in Southeast Asia.

The liquid is made up of water and glycerin as inactive ingredients.

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 for Tongkat Ali is mixed. It's rated possibly effective for sexual desire — some research supports this use.

For athletic performance, the evidence suggests it's possibly ineffective. The data we hold doesn't establish enough reliable evidence to rate it for back pain, osteoporosis, or diabetes, so we can't say whether it helps with those.

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.

Tongkat Ali is generally well tolerated in short-term studies, but we don't have solid long-term safety data, and the quality of products can vary. One concern is that it may raise testosterone levels beyond the normal range, which could lead to acne, insulin resistance, liver problems, or other testosterone-related side effects.

Do not use this product during pregnancy — there isn't enough safety data, and possible hormonal effects make it inadvisable. Avoid it while breastfeeding as well, since reliable safety information is lacking.

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: 249 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.

Before you start Tongkat Ali Express, check with your pharmacist or doctor if you take propranolol (Inderal) or any other beta-blocker — the most serious risk is reduced effectiveness. Also flag any medications processed by CYP1A2, CYP2C19, or CYP2A6 liver enzymes (Minor risk of increased levels), and let them know if you're on testosterone therapy (Minor risk of further testosterone elevation).

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.

Tongkat Ali Express may be worth considering if you're interested in sexual desire support and want to check it against your medications first. If you take propranolol or any heart or blood pressure medication, or if you're on testosterone therapy, talk with your doctor or pharmacist before starting — the interaction with propranolol is real and could affect how well your medication works.

Pregnant or breastfeeding? Skip it.

Have your pharmacist or doctor review your exact medication list with this product.

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 Mar 22, 2023.

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 Tongkat Ali Express 100 mg, straight from the product label.

Brand Amazing Herbs
Barcode (UPC) 665231610017
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Mar 22, 2023
DSLD ID 273446
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 Tongkat Ali Express 100 mg by Amazing Herbs, 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:
0.62 mL
Maximum serving Sizes:
0.62 mL
Servings per container
48
UPC/BARCODE
665231610017
IngredientAmount% DV
Tongkat Ali extract62 mg--

Other ingredients: Water, Glycerin

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.
Formula

Tongkat Ali Express Liquid Extract is made from 100% Pure Eurycoma Longifolia, a powerful root grown in Indonesia and Malaysia. Also known as Pasak Bumi and 'Ali's Stick'.

100mg 100% Pure Tongkat Ali alcohol free liquid extract

Suggested/Recommended/Usage/Directions

Suggested Use: Take one dropper-full or 1/8 teaspoon (0.62ml) orally, 1-3 times a day, or as needed. Shake well before use.

Formulation

100% Pure Tongkat Ali alcohol free liquid extract

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

Tongkat Ali Express 100 mg by Amazing Herbs label

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

Tongkat Ali Express 100 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 Tongkat Ali Express 100 mg by Amazing Herbs

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

Serving size0.62 mL Dosage formLiquid Servings per container48 Amounts shown are per serving.

Tongkat Ali extract

Interacts with
249 drugs
62 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...

Tongkat Ali extract monograph & interactions

Other (inactive) ingredients: Water, Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Tongkat Ali Express 100 mg by Amazing Herbs Drug Interactions

Want to check YOUR meds against Tongkat Ali Express 100 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
249Drugs
3 Moderate 246 Minor

Ingredients driving the most interactions

Tongkat Ali extract 249

Individual Drug Interactions

The ingredients in Tongkat Ali Express 100 mg interact with 249 drugs. Click any drug to see the details.

1 of the 1 ingredient in Tongkat Ali Express 100 mg interact with drugs. Each result below shows which ingredient is responsible. Tongkat Ali extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Tongkat Ali Express 100 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.

Tongkat Ali extract5 drug types · 249 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
Tongkat Ali extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Tongkat Ali Express 100 mg, from the product label.

Amazing Herbs

See all Amazing Herbs products
Name
Amazing Herbs
City
Buford
State
GA
ZipCode
30518
Phone Number
1-800-241-9138
Web Address
www.amazingherbs.com
Pharmacist Counseling Corner

Tongkat Ali Express 100 mg by Amazing Herbs: Common Questions

Does Tongkat Ali Express 100 mg by Amazing Herbs interact with any medications?
Yes. Based on its ingredients, Tongkat Ali Express 100 mg has a known interaction with 249 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Tongkat Ali Express 100 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.
Does Tongkat Ali actually help with sexual desire?
The evidence rates it as possibly effective for sexual desire, which means some research supports it but it's not definitive. Results vary from person to person, so talk with your doctor about whether it makes sense for you.
Can I take this while pregnant?
No. There isn't enough safety data, and because Tongkat Ali may affect hormone levels, we advise against it during pregnancy. Talk with your doctor about safe alternatives.
What's the risk of raising testosterone too high?
If Tongkat Ali pushes your testosterone beyond the normal range, you could develop acne, insulin resistance, liver damage, or other testosterone-related side effects. This is most likely a concern if you're already on testosterone therapy or have naturally high levels.
Is this supplement safe to take long-term?
Short-term use appears generally well tolerated in studies, but we don't have solid long-term safety data yet. If you plan to use it regularly, discuss that with your doctor or pharmacist.
What happens if I take this with propranolol for my heart?
Tongkat Ali can reduce propranolol levels by about 29%, which means your blood pressure or heart medication may not work as well. Don't start this supplement without checking with your doctor first if you take propranolol.

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

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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.

Tongkat Ali Express 100 mg label
Go deeper

The Full Monographs Behind Tongkat Ali Express 100 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 249 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

Tongkat Ali Express 100 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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