No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Tu Si Zi Ingredients & Drug Interactions

by Herbal Terra

Liquid Category: Botanical
No known interaction
The interaction bottom line No known interaction

Tu Si Zi is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for sexual health and impotence, energy and fatigue, kidney and reproductive support (in traditional medicine).We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

HelloPharmacist Scorecard of Tu Si Zi by Herbal Terra

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

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: Tu Si Zi dried seed liquid extract, also known as dodder. The extract is suspended in menstruum, which is an inactive ingredient used to extract and preserve the plant material.

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 Dodder product and its label doesn't state a use — see Dodder'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 evidence for Tu Si Zi (dodder) isn't established yet in our data. We hold insufficient reliable evidence to rate whether it works for depression or atopic dermatitis (eczema), which means the studies so far haven't been solid enough to say either way.

If you're considering it for one of these conditions, that's a conversation to have with your doctor.

The evidence, ingredient by ingredient Dodder

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.

Dodder is generally well tolerated when taken by mouth. At high doses, it may cause intestinal colic (cramping pain in the abdomen) and diarrhea.

A combination product containing dodder and whey has been reported to cause loss of appetite, mild indigestion, and a feeling of stomach heaviness, though it's unclear whether dodder alone was responsible. Traditional use suggests keeping the daily dose to no more than 8 grams of dodder aerial parts.

Because human safety data are limited, use this product cautiously and under the guidance of a healthcare professional. The safety data advise against use during pregnancy and while breastfeeding.

Side effects, ingredient by ingredient Dodder

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredients we could check. Still, run your exact medications through the tool on this page before you start, and let your pharmacist know you're taking this.

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.

Tu Si Zi is a single-ingredient liquid extract with no documented drug interactions, but the evidence for whether it actually works for depression or eczema isn't solid yet. If you're pregnant, breastfeeding, or managing a chronic condition, talk with your pharmacist or doctor before starting.

High doses may cause stomach upset, so stick to recommended amounts.

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 Sep 25, 2020.

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 Tu Si Zi, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 617503488985
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 25, 2020
DSLD ID 235173
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 Tu Si Zi by Herbal Terra, 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:
1 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
617503488985
IngredientAmount% DV
Tu Si Zi dried seed liquid extract970 mg--

Other ingredients: Menstruum

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.
Formulation

Origin of plant material: Nepal.

Manufactured in the USA in an FDA registered facility

Alcohol free

Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Alcohol-free liquid herbal extract

Non GMO

No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free

Suggested/Recommended/Usage/Directions

Direction Shake well before use. Adults take up to 30 drops (1 mL, one full squeeze of the dropper bulb) in 3-4 fl. oz of juice or water up to 4 times a day. We recommend to seek expert medical advice before taking this or any other herbal supplements.

FDA Disclaimer Statement

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

Precautions

Caution May have contraindications.

Do not use if you are allergic to any ingredients.

Consult a physician before using during pregnancy, if nursing, or if you are on any medications.

Keep out of the reach of children.

Storage

Store in a cool, dry, dark place.

Formula

Cuscuta chinensis

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

Made in USA Made in an FDA registered facility Natural Gluten Free

See for yourself

Tu Si Zi by Herbal Terra label

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

What’s inside

The Ingredients in Tu Si Zi by Herbal Terra

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

Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Tu Si Zi dried seed liquid extract

No known
interactions
970 mg per serving

Dodder (Cuscuta) is a parasitic plant whose seeds are used in traditional Chinese and Middle Eastern medicine, mainly for sexual, kidney, and energy-r...

Tu Si Zi dried seed liquid extract monograph & interactions

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

Interaction report

Tu Si Zi by Herbal Terra Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Tu Si Zi. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Tu Si Zi, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra
Pharmacist Counseling Corner

Tu Si Zi by Herbal Terra: Common Questions

Does Tu Si Zi by Herbal Terra interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Tu Si Zi. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Tu Si Zi 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.
What is Tu Si Zi used for?
Tu Si Zi (dodder seed extract) is traditionally used for depression and atopic dermatitis (eczema), but the evidence isn't established enough yet to say whether it works. Talk with your doctor about whether it's right for your situation.
Can I take this if I'm pregnant or breastfeeding?
No, the safety data advise against it during pregnancy and while breastfeeding. There isn't enough reliable safety information, so it's best avoided. Talk with your doctor about other options.
What side effects might I notice?
Dodder is generally well tolerated. At high doses, you might experience intestinal cramping or diarrhea. Some people using a combination of dodder and whey reported loss of appetite, mild indigestion, and stomach heaviness, though it's not clear dodder alone caused these.
Is there a recommended dose?
Traditional use suggests a maximum daily dose of 8 grams of dodder aerial parts. Since this is a liquid extract, follow the label directions, and talk with your pharmacist if you're unsure how much to take.
Why is the safety data limited?
Human safety studies for dodder extract haven't been extensive, so we don't have as much real-world evidence as we'd like. That's why it's important to use it cautiously and under guidance from a healthcare professional.

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

Not sure if Tu Si Zi 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.

Tu Si Zi label
Go deeper

The Full Monographs Behind Tu Si Zi’s Ingredients

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

Sources

Sources & How We Checked

Tu Si Zi'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 3 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.

Dodder 3 references
  1. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  2. Mehrbani M, Choopani R, Fekri A, Mehrabani M, Mosaddegh M, Mehrabani M. The efficacy of whey associated with dodder seed extract on moderate-to-severe atopic dermatitis in adults: A randomized, double-blind, placebo-controlled clinical trial. J Ethnopharm PubMed
  3. Firoozabadi A, Zarshenas MM, Salehi A, Jahanbin S, Mohagheghzadeh A. Effectiveness of Cuscuta planiflora Ten. and Nepeta menthoides Boiss. & Buhse in major depression: a triple-blind randomized controlled trial study. J Evid Based Complementary Altern Med

See these in context on the Dodder 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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