Western Red Cedar Ingredients & Drug Interactions
by Herbal Terra
What is this page for?
First and foremost: checking Western Red Cedar 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
Western Red Cedar is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for warts and skin growths, respiratory and immune support, cold and upper respiratory symptoms.Based on those ingredients, 576 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Western Red Cedar by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with Western Red Cedar 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 Western Red Cedar by Herbal Terra
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
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.
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 — Thuja.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: seizure medications; immunosuppressants / transplant drugs.
- For scale: 576 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.
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.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
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
General information
Key facts about Western Red Cedar, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 617503340405 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2020 |
| DSLD ID | 234612 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten 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 Western Red Cedar by Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract | 970 mg | -- |
Other ingredients: Menstruum
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.
Formulation
Origin of plant material: USA.
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
Thuja plicata
FDA Statement of Identity
Herbal Supplement
Seals/Symbols
Made in USA Made in an FDA registered facility Natural Gluten Free
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Western Red Cedar 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 Western Red Cedar 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.
Wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract
Interacts with576 drugs
Thuja, also called northern white cedar or arborvitae, is a tree whose leaf and oil have a long history in folk and homeopathic medicine, especially f...
Wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract monograph & interactionsOther (inactive) ingredients: Menstruum. These complete the product’s ingredient list but are not active constituents.
Western Red Cedar by Herbal Terra Drug Interactions
Western Red Cedar contains a single active ingredient, and it has known interactions with 576 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Western Red Cedar?
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 Western Red Cedar interact with 576 drugs. Click any drug to see the details.
1 of the 1 ingredient in Western Red Cedar interact with drugs. Each result below shows which ingredient is responsible. wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract
CephalexinCephalex, Keflex, Keftab, Lexin
How Cephalexin interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cephalexin interactionCephalothinKeflin
How Cephalothin interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cephalothin interactionCephapirinCefadyl
How Cephapirin interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cephapirin interactionCephradineAnspor, Velosef
How Cephradine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cephradine interactionCetirizineCetirizine, Quzyttir, Zyrtec
How Cetirizine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cetirizine interactionCetirizine, PseudoephedrineReactine Allergy & Sinus, Zyrtec-D
How Cetirizine, Pseudoephedrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Cetirizine, Pseudoephedrine interactionChlorambucilLeukeran
How Chlorambucil interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorambucil interactionChloroquineAralen HCL, Aralen Phosphate, Aralen Phosphate Injection, Avloclor, Malarivon, Nivaquine
How Chloroquine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chloroquine interactionChloroquine, Primaquine PhosphateAralen / Primaquine
How Chloroquine, Primaquine Phosphate interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chloroquine, Primaquine Phosphate interactionChlorpheniramineChlor-Trimeton, Teldrin
How Chlorpheniramine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine interactionChlorpheniramine Maleate, Dextromethorphan HydrobromideCoricidin HBP Cough & Cold, Coricidin II Cough & Cold, Pediatric Vicks Formula 44m Cough & Cold Relief
How Chlorpheniramine Maleate, Dextromethorphan Hydrobromide interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine Maleate, Dextromethorphan Hydrobromide interactionChlorpheniramine Maleate, Hydrocodone BitartrateVituz
How Chlorpheniramine Maleate, Hydrocodone Bitartrate interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine Maleate, Hydrocodone Bitartrate interactionChlorpheniramine Polistirex, Codeine PolistirexTuzistra XR
How Chlorpheniramine Polistirex, Codeine Polistirex interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine Polistirex, Codeine Polistirex interactionChlorpheniramine Tannate, Phenylephrine TannateRicobid
How Chlorpheniramine Tannate, Phenylephrine Tannate interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine Tannate, Phenylephrine Tannate interactionChlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine TannateHistatan, R Tannamine, R-Tannate, Rhinatate, Tri Tannate, Triotann +1 more
How Chlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine Tannate interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine Tannate, Phenylephrine Tannate, Pyrilamine Tannate interactionChlorpheniramine, Hydrocodone, PseudoephedrineTussend
How Chlorpheniramine, Hydrocodone, Pseudoephedrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Hydrocodone, Pseudoephedrine interactionChlorpheniramine, MethscopolamineAllerx
How Chlorpheniramine, Methscopolamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Methscopolamine interactionChlorpheniramine, Methscopolamine, PhenylephrineAH Chew, DA, DA II, Dallergy, Dallergy ER, Dura Vent DA +9 more
How Chlorpheniramine, Methscopolamine, Phenylephrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Methscopolamine, Phenylephrine interactionChlorpheniramine, Methscopolamine, PhenylpropanolaminePannaz
How Chlorpheniramine, Methscopolamine, Phenylpropanolamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Methscopolamine, Phenylpropanolamine interactionChlorpheniramine, Methscopolamine, PseudoephedrineMescolor, Rescon-Mx, Xiral
How Chlorpheniramine, Methscopolamine, Pseudoephedrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Methscopolamine, Pseudoephedrine interactionChlorpheniramine, Phenindamine, PhenylpropanolamineNolamine
How Chlorpheniramine, Phenindamine, Phenylpropanolamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenindamine, Phenylpropanolamine interactionChlorpheniramine, PhenylephrineDallergy JR, Ed A Hist, Histatab Plus, Rynatan
How Chlorpheniramine, Phenylephrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine interactionChlorpheniramine, Phenylephrine, PhenylpropanolamineRutuss
How Chlorpheniramine, Phenylephrine, Phenylpropanolamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine, Phenylpropanolamine interactionChlorpheniramine, Phenylephrine, Phenylpropanolamine, PhenyltoloxamineDe Con, Decongest, Naldecon, Nalspan SR, Tri Phen Mine Sr, Uni Decon +1 more
How Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Phenyltoloxamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Phenyltoloxamine interactionChlorpheniramine, Phenylephrine, Phenylpropanolamine, PyrilamineHistalet Forte, Poly Hist Forte, Vanex Forte
How Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Pyrilamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine, Phenylpropanolamine, Pyrilamine interactionChlorpheniramine, Phenylephrine, PhenyltoloxamineCom Time, Comhist, Comhist LA, Linhist LA, Q Hist LA
How Chlorpheniramine, Phenylephrine, Phenyltoloxamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine, Phenyltoloxamine interactionChlorpheniramine, Phenylephrine, PyrilamineTanamine
How Chlorpheniramine, Phenylephrine, Pyrilamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylephrine, Pyrilamine interactionChlorpheniramine, PhenylpropanolamineAler-Releaf, Conex DA, Contac, Dehist, Histabid Duracaps, Ornade +1 more
How Chlorpheniramine, Phenylpropanolamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Phenylpropanolamine interactionChlorpheniramine, Pheylephrine, PyrilaminePhena-Plus
How Chlorpheniramine, Pheylephrine, Pyrilamine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Pheylephrine, Pyrilamine interactionChlorpheniramine, PseudoephedrineA.R.M., Anamine TD, Atrohist, Atrohist Ped, Brexin LA, Children's Deconamine +26 more
How Chlorpheniramine, Pseudoephedrine interacts with Western Red Cedar — through 1 ingredient. Tap an ingredient for the detail:
Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid ExtractSeizure Threshold Lowering Drugs Moderate
Interaction Summary
Thuja products can contains significant amounts of thujone, a neurotoxin.
Read the full Wildcrafted Western Red Cedar (thuja Plicata) Dried Leaf Liquid Extract + Chlorpheniramine, Pseudoephedrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Western Red Cedar 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.
wildcrafted Western Red Cedar (Thuja plicata) dried leaf liquid extract
Anticonvulsants
Thuja products can contain thujone, which might lower the seizure threshold. Theoretically, this could decrease the effectiveness of anticonvulsants drugs.
Immunosuppressants
Thuja might stimulate immune function. Theoretically, taking thuja might decrease the effects of immunosuppressive therapy. Immunosuppressant drugs include azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Sandimmune), daclizumab (Zenapax), muromonab-CD3 (OKT3, Orthoclone OKT3), mycophenolate (CellCept), tacrolimus (FK506, Prograf), sirolimus (Rapamune), prednisone (Deltasone, Orasone), and other corticosteroids (glucocorticoids).
Seizure Threshold Lowering Drugs
Thuja products can contains significant amounts of thujone, a neurotoxin. Theoretically, patients taking drugs that lower the seizure threshold might be at greater risk of seizure if they also take thuja. Advise patients taking these drugs to avoid thuja products. Some drugs that lower the seizure threshold include anesthetics (propofol, others), antiarrhythmics (mexiletine), antibiotics (amphotericin, penicillin, cephalosporins, imipenem), antidepressants (bupropion, others), antihistamines (cyproheptadine, others), immunosuppressants (cyclosporine), narcotics (fentanyl, others), stimulants (methylphenidate), theophylline, and others.
Brand information
Manufacturer and brand details for Western Red Cedar, from the product label.
Western Red Cedar by Herbal Terra: Common Questions
Does Western Red Cedar by Herbal Terra interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Western Red Cedar 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 Western Red Cedar’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Western Red Cedar'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 10 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.
Thuja 10 references
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Millet Y, Jouglard J, Steinmetz MD, et al. Toxicity of some essential plant oils. Clinical and experimental study. Clin Toxicol 1981;18:1485-98. PubMed
- Gohla SH, Haubeck HD, Neth RD. Mitogenic activity of high molecular polysaccharide fractions isolated from the Cupressaceae Thuja occidentale L. I. Macrophage-dependent induction of CD-4-positive T-helper (Th+) lymphocytes. Leukemia 1988;2:528-33.
- Fetrow CW, Avila JR. Professional's Handbook of Complementary & Alternative Medicines. 1st ed. Springhouse, PA: Springhouse Corp., 1999.
- Henneicke-von Zepelin H, Hentschel C, Schnitker J, et al. Efficacy and safety of a fixed combination phytomedicine in the treatment of the common cold (acute viral respiratory tract infection): results of a randomised, double blind, placebo-controlled, m
- Naser, B., Bodinet, C., Tegtmeier, M., and Lindequist, U. Thuja occidentalis (Arbor vitae): A Review of its Pharmaceutical, Pharmacological and Clinical Properties. Evid.Based Complement Alternat.Med 2005;2(1):69-78.
- Patel R, Alavi F, Ortega S, Matela A. Herb-Induced Liver Injury by Cimicifuga racemosa and Thuja occidentalis Herbal Medications for Fertility. Case Rep Gastrointest Med 2021;2021:8858310. PubMed
- Ambooken B, Thomas M, Jisha KT. Papillary Eccrine Adenoma in a 5-year-old Girl Altered by Application of Thuja Ointment. J Cutan Aesthet Surg 2020;13(4):370-371. PubMed
- Badaoui A, Fougerousse AC. Contact dermatitis to linalool and limonene: Unusual sources of exposure. Ann Dermatol Venereol 2023;150(2):167-168. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
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