Forsythia Ingredients & Drug Interactions
by Herbal Terra
What is this page for?
First and foremost: checking Forsythia 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
Forsythia is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for colds and flu symptoms, sore throat, fever.Based on those ingredients, 123 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Forsythia Fruit Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Forsythia by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with Forsythia by Herbal Terra — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Forsythia 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.
What’s inside
Full disclosure
This product contains one active ingredient: Forsythia Fruit Extract in a dried form. The liquid also includes alcohol, water, and glycerin as inactive ingredients to deliver the extract.
Does it work?
Couldn't assess
The evidence for forsythia in treating bronchiolitis (inflammation in the small airways of the lungs) is insufficient to rate in our data. That doesn't mean it doesn't work—just that the reliable research isn't there yet to make a confident claim either way.
How safe is it?
Limited data
Forsythia has been used short-term in traditional medicine, but human safety data are limited. The safety data advises against use during pregnancy and while breastfeeding because there isn't enough information to know it's safe in those situations.
No adverse effects are documented in the data we hold, though that's partly because research on it has been sparse.
Meds to double-check
Moderate interaction found
Before starting Forsythia Fruit Extract, check if you take any anticoagulant or antiplatelet drugs (blood thinners like warfarin, heparin, aspirin, or clopidogrel)—there's a Moderate interaction risk. Also double-check if you're on azithromycin (Zithromax) or similar antibiotics, as a Minor interaction is documented.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is limited.
Forsythia is a traditional herbal extract with limited modern safety research. If you're on blood thinners or azithromycin, you'll want to check with us before adding it.
Talk to your pharmacist about whether it's right for you and whether the traditional uses match what you're hoping to treat.
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 Jan 23, 2025.
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
General information
Key facts about Forsythia, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 1977490474316 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Jan 23, 2025 |
| DSLD ID | 325033 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Sugar Free |
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 Forsythia by Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Forsythia Fruit Extract, Dry | 983 mg | -- |
Other ingredients: Alcohol, Water, Glycerin
Tap any ingredient to jump to its full detail below.
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
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.
Precautions
We recommend to seek expert medical advice before taking. May have contraindications and cause adverse reaction.
Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications.
Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications. Keep out of the reach of children!
Do not use if you are allergic to any ingredients.
Storage
Store in a cool, dry, dark place.
FDA Disclaimer Statement
This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.
Formulation
cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.
Sugar free
Expertly extracted 100% natural Premium product
Organic alcohol
No artificial ingredients, color additives, fillers or binders.
Natural Gluten free
Formula
Forsythia suspensa
Organic alcohol
FDA Statement of Identity
Herbal Supplement
Seals/Symbols
Made in USA
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Forsythia by Herbal Terra label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Forsythia 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 container60 Amounts shown are per serving.
Forsythia Fruit Extract, Dry
Interacts with123 drugs
Forsythia is a traditional Chinese herb, used mainly for cold and flu symptoms and as part of multi-herb formulas. Most evidence comes from laboratory...
Forsythia Fruit Extract, Dry monograph & interactionsOther (inactive) ingredients: Alcohol, Water, Glycerin. These complete the product’s ingredient list but are not active constituents.
Forsythia by Herbal Terra Drug Interactions
HelloPharmacist Interaction Report
Forsythia Fruit Extract by Herbal Terra has documented interactions with blood thinners and one antibiotic.
The most serious concern is with anticoagulant and antiplatelet drugs (blood thinners and anti-clotting medications)—forsythia may theoretically increase bleeding risk by reducing how platelets clump together. This is rated Moderate severity and includes drugs like aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, and others in that class.
Read the full breakdown — every affected drug type, severity by severity
There is also a Minor interaction documented with azithromycin (Zithromax), an antibiotic. Animal studies suggest forsythia slows how your body clears both the antibiotic and forsythia itself, which could raise levels of each.
Altogether, these interactions span 123 individual medications. If you take any blood thinner, antiplatelet drug, or are on azithromycin, run your specific medications through the checker below before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Forsythia?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Forsythia interact with 123 drugs. Click any drug to see the details.
1 of the 1 ingredient in Forsythia interact with drugs. Each result below shows which ingredient is responsible. Forsythia Fruit Extract, Dry
AzithromycinAzasite, Zithromax, Zmax
How Azithromycin interacts with Forsythia — through 1 ingredient. Tap an ingredient for the detail:
Forsythia Fruit Extract, DryAzithromycin (zithromax) Minor
Interaction Summary
Theoretically, taking forsythia with azithromycin might increase the risk of adverse effects.
Read the full Forsythia Fruit Extract, Dry + Azithromycin interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Forsythia 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.
Forsythia Fruit Extract, Dry
Anticoagulant/Antiplatelet Drugs
Theoretically, taking forsythia with anticoagulant or antiplatelet drugs might increase the risk of bleeding due to decreased platelet aggregation. Forsythia might reduce platelet aggregation by inhibiting platelet activating factor. Some of these drugs include aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others.
Azithromycin (Zithromax)
Theoretically, taking forsythia with azithromycin might increase the risk of adverse effects. Animal research in rats shows that taking a single dose of forsythia with azithromycin decreases the clearance and increases the area under the curve of both forsythiaside, a constituent of forsythia, and azithromycin. The mechanism of this interaction is not well understood.
Brand information
Manufacturer and brand details for Forsythia, from the product label.
Herbal Terra
See all Herbal Terra products- Name
- Herbal Terra LLC
- Phone Number
- +18083857868
- Web Address
- herbalterra.com
Forsythia by Herbal Terra: Common Questions
Does Forsythia by Herbal Terra interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this if I'm pregnant or breastfeeding?
What is forsythia used for?
Are there any side effects I should know about?
Does this product have fillers?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Forsythia is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Forsythia’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Forsythia'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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.
Forsythia 3 references
- Kong XT, Fang HT, Jiang GQ, et al. Treatment of acute bronchiolitis with Chinese herbs. Arch Dis Child 1993;68:468-71. PubMed
- Iwakami S, Wu JB, Ebizuka Y, Sankawa U. Platelet activating factor (PAF) antagonists contained in medicinal plants: lignans and sesquiterpenes. Chem Pharm Bull (Tokyo) 1992;40:1196-8. PubMed
- Li XG, Ni J, Shen S, Wang XP, Tian JC. Pharmacokinetic interaction of Forsythia suspensa extract and azithromycin injection after single and co-intravenous administration in rats. Chin J Nat Med 2020;18(3):234-240. PubMed
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