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Dietary supplement

Linden Ingredients & Drug Interactions

by Hawaii Pharm

Linden label
See full label image
Liquid 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 Linden 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

Linden is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, trouble sleeping, colds and flu symptoms.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Linden Flower, Leaf Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Linden by Hawaii Pharm

Ask about any prescription or over-the-counter medication and we check it for interactions with Linden by Hawaii Pharm — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Linden by Hawaii Pharm

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 13, 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: linden flower, leaf extract in dried form. Linden is traditionally used as an herbal remedy and is often brewed as a tea.

The liquid formula also contains alcohol, water, and glycerin as inactive ingredients.

Does it work?

Couldn't assess
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
Not assessable

This is a single-ingredient Linden product and its label doesn't state a use — see Linden's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The data we hold doesn't include effectiveness ratings for linden. That doesn't mean it doesn't work — just that the evidence for or against it isn't established in our records.

The evidence, ingredient by ingredient Linden

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.

Linden is generally well tolerated when used as a tea, though human safety data are limited and the product's safety hasn't been well studied. Before you start it, talk with your doctor.

There's one case report of an allergic reaction to linden pollen in a linden flower tea, and one report of skin redness (contact urticaria) from a linden extract-containing shampoo. If you have a known pollen allergy, mention that to your doctor or pharmacist.

Pregnancy and lactation safety data aren't on file for this ingredient — talk with your doctor or pharmacist for personalized advice before using it if you're pregnant or breastfeeding.

Side effects, ingredient by ingredient Linden

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 — Linden.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 1 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.

If you take lithium, this is your main concern. Linden may increase lithium's effects and side effects due to its potential diuretic action, and your dose might need adjustment.

Check with your doctor or pharmacist before starting.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Linden is a single-ingredient herbal extract traditionally used as a tea and generally well tolerated, but human safety data are sparse. The main caution is with lithium — if you take it, check with your doctor or pharmacist before adding this product.

For anyone else, a quick conversation with their own pharmacist about their full medication list is still a good idea.

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 Nov 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 Linden, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 840253633019
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Nov 22, 2023
DSLD ID 301401
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten 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 Linden by Hawaii Pharm, 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:
0.7 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
840253633019
IngredientAmount% DV
Linden Flower, Leaf Extract, Dry983 mg--

Other ingredients: Alcohol, 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.
Brand IP Statement(s)

Hawaii Pharm Herbal Extract Highest quality since 2008

Suggested/Recommended/Usage/Directions

Suggested use: Shake well before using. For adults add about 20-30 drops (0.7-1 mL, one full squeeze of the dropper bulb) to some juice or water, up to 4 times a day.

Precautions

Warning: We recommend to seek expert medical advice before taking.

Do not use if you are allergic to any ingredients.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

May affect the ability to drive and operate machinery. May have contraindications, can cause side effects and adverse reactions. Do not use if seal is broken or missing.

Keep out of the reach of children!

Storage

Store in a cool dry place.

Seals/Symbols

cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.

Organic Alcohol Based USA Made in United States of America

FDA Disclaimer Statement

This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.

General Statements

Scan this QR-code to get 15% discount on your next purchase. Limited time deal.

Formula

Tilia x europaea

Organic Alcohol Based

Formulation

Only natural ingredients Purity is laboratory tested and verified

All the raw materials are gluten-free by their nature No artificial colors, flavors, or preservatives

Not tested on animals

Organic Alcohol Based

Made in USA, Hawaii

FDA Statement of Identity

Herbal Supplement

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

See for yourself

Linden by Hawaii Pharm label

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

Linden 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 Linden by Hawaii Pharm

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

Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Linden Flower, Leaf Extract, Dry

Interacts with
1 drug
983 mg per serving Form: Tilia x europaea Flower Extract, Dry, Tilia x europaea Leaf Extract, Dry

Linden (also called lime flower) is a traditional herbal tea long used to calm nerves, ease cold symptoms, and support restful sleep. Strong human evi...

Linden Flower, Leaf Extract, Dry monograph & interactions

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

Interaction report

Linden by Hawaii Pharm Drug Interactions

Want to check YOUR meds against Linden?

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
1Drugs
1 Moderate

Ingredients driving the most interactions

Linden Flower, Leaf Extract, Dry 1

Individual Drug Interactions

The ingredients in Linden interact with 1 drug. Click any drug to see the details.

1 of the 1 ingredient in Linden interact with drugs. Each result below shows which ingredient is responsible. Linden Flower, Leaf Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in Linden 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.

Linden Flower, Leaf Extract, Dry1 drug type · 1 drug

Lithium

Theoretically, due to its potential diuretic effects, linden might increase the effects and adverse effects of lithium.
Linden is thought to have diuretic properties. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Linden Flower, Leaf Extract, Dry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Linden, from the product label.

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
Street Address
510 Sumner St. Ste. 613
City
Honolulu
State
HI
ZipCode
96817
Phone Number
888-854-2924
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

Linden by Hawaii Pharm: Common Questions

Does Linden by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, Linden has a known interaction with 1 medication. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Linden 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.
Can I take this if I'm on lithium?
Not without talking to your doctor first. Linden may increase lithium's effects and side effects, and your dose might need to be lowered. Your doctor or pharmacist will help you decide whether it's safe for you.
What exactly is linden?
Linden is a flower and leaf extract from the linden tree, traditionally used as a herbal remedy and brewed as a tea. This product is a liquid extract form of that same ingredient.
Does this have any side effects?
It's generally well tolerated, but there's one case report of an allergic reaction to linden pollen in linden flower tea and one report of skin redness from a linden extract-containing shampoo. If you have a pollen allergy, mention it to your doctor or pharmacist.
Is this safe in pregnancy?
Safety data for linden in pregnancy aren't on file. Talk with your doctor or pharmacist before using it if you're pregnant or breastfeeding — they can give you personalized advice.
What does linden do?
Linden is traditionally used as an herbal remedy, often as a tea. The data we hold doesn't include formal evidence for or against how well it works.

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

Not sure if Linden is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Linden label
Go deeper

The Full Monographs Behind Linden’s Ingredients

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

Herb & supplement monograph

Linden

Interacts with 1 drug

Linden (also called lime flower) is a traditional herbal tea long used to calm nerves, ease cold symptoms, and support restful sleep. Strong human evidence for these uses is lacking, but the...

Read the full Linden monograph →
Sources

Sources & How We Checked

Linden'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 2 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.

Linden 2 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.

See these in context on the Linden 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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