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Dietary supplement

Lung & Bronchial Formula Ingredients & Drug Interactions

by Christopher's Original Formulas

Lung & Bronchial Formula label
See full label image
Liquid Category: Botanical
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Lung & Bronchial Formula 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: Major

Lung & Bronchial Formula is a dietary supplement by Christopher's Original Formulas with 6 active ingredients. Its ingredients are commonly taken for cough and sore throat, dry mouth and throat irritation, digestive upset and heartburn.Based on those ingredients, 2,044 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Marshmallow, Mullein, Pleurisy Root. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Lung & Bronchial Formula by Christopher's Original Formulas

Ask about any prescription or over-the-counter medication and we check it for interactions with Lung & Bronchial Formula by Christopher's Original Formulas — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Lung & Bronchial Formula by Christopher's Original Formulas

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 20, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 6 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

This liquid formula contains 6 active ingredients: marshmallow, mullein, lobelia, chickweed, pleurisy root, and lungwort, blended in proportions the maker doesn't disclose. These are traditional respiratory herbs — marshmallow and mullein are often used for throat comfort, lobelia for cough, pleurisy root (also called butterfly weed) for chest symptoms, and chickweed and lungwort as supporting botanicals.

The product also contains inactive ingredients listed as "a base of" — we don't have the full list of those excipients on file.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: lung and bronchial health support.
  • We looked for evidence on: Asthma, Bronchitis, Cough, Influenza, Pneumonia, Respiratory tract infections — and 4 related terms.
  • The closest evidence on file: Lobelia is rated "Possibly Ineffective" for Smoking cessation (Natural Medicines).
  • Also on file: Mullein is rated "Insufficient Reliable Evidence To Rate" for Bronchitis, Asthma, Cough, Influenza, and more.
  • Also on file: Marshmallow is rated "Insufficient Reliable Evidence To Rate" for ACE inhibitor-induced cough.

The effectiveness evidence for the ingredients in this formula is not established in the data we hold. Marshmallow, mullein, lobelia, and chickweed all carry ratings of insufficient reliable evidence for their traditional uses — including respiratory tract infections, cough, bronchitis, and asthma.

Lobelia for smoking cessation is rated possibly ineffective. Pleurisy root and lungwort have no effectiveness data on file.

The evidence, ingredient by ingredient Marshmallow Mullein Lobelia Chickweed Pleurisy Root Lungwort

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 4 of the 6 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 6 of 6.
  • General safety write-ups exist for 6 of 6.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Marshmallow and mullein are generally well tolerated for short-term use, but human safety data are limited for both. Lobelia is the ingredient with the most serious safety concern — it can be toxic at higher doses, causing nausea, vomiting, diarrhea, dizziness, tremors, and at 600 mg or above, serious effects like rapid heart rate, low blood pressure, seizures, and even death; use caution and stay within recommended doses.

Pleurisy root also contains potentially toxic compounds similar to digitalis and should be used cautiously. Mullein topically and pleurisy root topically can cause skin irritation in some people.

Chickweed is generally considered lower-risk for short-term use.

Side effects, ingredient by ingredient Marshmallow Mullein Lobelia Chickweed Pleurisy Root Lungwort

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 4 of the 6 matched ingredients can interact with medications — Lobelia, Pleurisy Root, Mullein, Marshmallow.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; heart-rhythm medications; lithium.
  • For scale: 2,045 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 taking this product, clear it with your doctor or pharmacist if you take digoxin (Lanoxin) — the pleurisy root in this formula carries a major interaction risk for heart toxicity. Also check if you take lithium, diuretics (water pills), estrogen-based hormone therapy, or blood thinners (anticoagulants or antiplatelet drugs), all of which have documented interactions with ingredients here.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Major medication interactions have been identified, and safety information is well characterized.

This product is marketed for lung and bronchial support using traditional herbs, but we don't have evidence the formula works for that purpose. More importantly, if you take digoxin (a heart medication), any diuretic (water pill), lithium (for mood), estrogen therapy, or blood thinners, this product carries real interaction risks — check with your doctor or pharmacist before starting.

Even if you take other medications, run them through the tool on this page first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 6 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 25, 2019.

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 Lung & Bronchial Formula, straight from the product label.

Brand Christopher's Original Formulas
Barcode (UPC) 084783498155
Net contents 2 fl. Oz.; 59 mL
Market status On market
Date entered into DSLD Apr 25, 2019
DSLD ID 200606
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
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 Lung & Bronchial Formula by Christopher's Original Formulas, 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:
5 Drop(s)
Maximum serving Sizes:
15 Drop(s)
Servings per container
228
UPC/BARCODE
084783498155
IngredientAmount% DV
Marshmallow0 NP--
Proprietary Blend0 NP--
Mullein0 NP--
Lobelia0 NP--
Chickweed0 NP--
Pleurisy Root0 NP--
Lungwort0 NP--

Other ingredients: A base of

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.
Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 5 to 15 drops before meals, or as directed by your health care professional.

Storage

Store in a cool dry place.

Precautions

Warning: Do not use during pregnancy, or while nursing, except as directed by your health care professional.

Brand IP Statement(s)

2010 Wholistic Botanicals L.L.C. All Rights Reserved

John R. Christopher

FDA Statement of Identity

Dietary Supplement

Formulation

No Added Fillers or Chemicals

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.

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

See for yourself

Lung & Bronchial Formula by Christopher's Original Formulas label

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

Lung & Bronchial Formula 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 Lung & Bronchial Formula by Christopher's Original Formulas

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size5 Drop(s) Dosage formLiquid Servings per container228 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Blend

0 NP per serving

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

Interaction report

Lung & Bronchial Formula by Christopher's Original Formulas Drug Interactions

Want to check YOUR meds against Lung & Bronchial Formula?

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
2,044Drugs
1 Major 117 Moderate 1,926 Minor

Ingredients driving the most interactions

Marshmallow 2,040
Mullein 122
Pleurisy Root 117
Lobelia 1

Individual Drug Interactions

The ingredients in Lung & Bronchial Formula interact with 2,044 drugs. Click any drug to see the details.

4 of the 6 ingredients in Lung & Bronchial Formula interact with drugs. Each result below shows which ingredient is responsible. Marshmallow Mullein Pleurisy Root Lobelia

Each ingredient & the kinds of drugs it affects

For each ingredient in Lung & Bronchial Formula with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Marshmallow3 drug types · 2,040 drugs

Lithium

Theoretically, due to potential diuretic effects, marshmallow might reduce excretion and increase levels of lithium.
Marshmallow is thought to have diuretic properties. To avoid lithium toxicity, the dose of lithium might need to be decreased when used with marshmallow.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, marshmallow flower might have antiplatelet effects.
Animal research suggests that marshmallow flower extract has antiplatelet effects. However, the root and leaf of marshmallow, not the flower, are the plant parts most commonly found in dietary supplements. Theoretically, use of marshmallow flower with anticoagulant/antiplatelet drugs can have additive effects, and might increase the risk for bleeding in some patients.

Likelihood Unlikely Evidence D
Oral Drugs

Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Marshmallow contains mucilage which can affect oral drug absorption. To avoid changes in absorption, take marshmallow 30-60 minutes after oral medications.

Likelihood Possible Evidence D
Marshmallow full monograph & interactions

Mullein1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Lab tests on extracts from different parts of common and dense-flowered mullein plants show that they do have some blood-thinning effects, as they increase the time it takes for blood to clot. This is likely due to at least one of the known constituents of muellein, triterpenoid saponins. However, the effects appear to be mild and results have been inconsistent. Extracts from different plant parts have been show to have varying anticoagulant strengths, with water-based ones being more potent than alcohol-based extracts.

Likelihood Unlikely Evidence A
Mullein full monograph & interactions

Pleurisy Root3 drug types · 117 drugs

Digoxin (Lanoxin)

Pleurisy root contains digitalis-like cardenolide glycosides. Taking pleurisy root in combination with digoxin could increase the risk of adverse effects and toxicity.

Likelihood Probable Evidence D
Diuretic Drugs

Theoretically, concomitant use of potassium-depleting diuretics and pleurisy root can increase the risk of cardiac glycoside toxicity due to potassium depletion. Some diuretics that can deplete potassium include chlorothiazide (Diuril), chlorthalidone (Thalitone), furosemide (Lasix), hydrochlorothiazide (HCTZ, Hydrodiuril, Microzide), and others.

Likelihood Possible Evidence D
Estrogens

Theoretically, excessive amounts of pleurisy root might interfere with hormone drug therapy.

Likelihood Possible Evidence D
Pleurisy Root full monograph & interactions

Lobelia1 drug type · 1 drug

Lithium

Lobelia is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, lobelia might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Lobelia full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Lung & Bronchial Formula, from the product label.

Christopher's Original Formulas

See all Christopher's Original Formulas products
Name
Wholistic Botanicals L.L.C.
City
Spanish Fork
State
UT
ZipCode
84660
Phone Number
1-800-453-1406
Web Address
www.drchristopher.com
Pharmacist Counseling Corner

Lung & Bronchial Formula by Christopher's Original Formulas: Common Questions

Does Lung & Bronchial Formula by Christopher's Original Formulas interact with any medications?
Yes. Based on its ingredients, Lung & Bronchial Formula has a known interaction with 2,044 medications, including 1 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Lung & Bronchial Formula contains 6 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Is this safe to take while pregnant?
No. Marshmallow, mullein, and pleurisy root are all advised against in pregnancy due to insufficient safety data; lobelia is rated likely unsafe due to toxicity concerns. Chickweed is rated likely safe, and lungwort lacks enough data. Overall, the safety data advise against use during pregnancy — talk with your doctor before considering it.
What about breastfeeding?
The safety data advise against it. Marshmallow, mullein, chickweed, and lungwort all lack enough reliable safety information for breastfeeding. Pleurisy root is rated possibly unsafe while breastfeeding, and lobelia is rated likely unsafe due to toxicity. Talk with your doctor or pharmacist for personalized guidance.
Can I take this at the same time as my other oral medications?
Marshmallow in this formula contains mucilage that might impair absorption of oral drugs. To be safe, take marshmallow at least 30 to 60 minutes after your other oral medications. But also check the tool on this page for interactions with your specific drugs — don't rely on timing alone.
Does this formula actually work for cough or bronchitis?
The evidence isn't established in our data. Mullein, marshmallow, lobelia, and chickweed are all rated as having insufficient reliable evidence for cough, bronchitis, and asthma. Lobelia for smoking cessation is rated possibly ineffective. Talk with your doctor about what the evidence supports for your situation.
What side effects might I notice from this product?
Lobelia can cause nausea, vomiting, diarrhea, dizziness, tremors, and throat irritation, especially at higher doses — these have been reported even at doses as low as 50 mg. Pleurisy root can cause nausea, vomiting, and gastrointestinal upset. Mullein and chickweed may cause skin irritation if you're sensitive to them topically.
Is this formula safe to use long-term?
The safety data emphasize short-term use only for marshmallow and mullein — human safety data for longer use are limited. Pleurisy root contains potentially toxic compounds and should be used cautiously and under guidance. This is not a product to take indefinitely without professional oversight.

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.

Lung & Bronchial Formula label
Go deeper

The Full Monographs Behind Lung & Bronchial Formula’s Ingredients

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

Herb & supplement monograph

Marshmallow

Interacts with 2,040 drugs

Marshmallow root is a traditional herb rich in soothing, gel-like fibers called mucilage, which is why it has long been used for coughs, sore throats, and stomach irritation. Evidence for th...

Read the full Marshmallow monograph → Herb & supplement monograph

Mullein

Interacts with 122 drugs

Mullein is a traditional herbal remedy most often used as a tea or syrup to soothe coughs, sore throats, and respiratory irritation. High-quality human studies are lacking, so its benefits a...

Read the full Mullein monograph → Herb & supplement monograph

Lobelia

Interacts with 1 drug

Lobelia is a traditional herb once used for breathing problems and to help people quit smoking, but reliable evidence supporting these uses is lacking. It can be toxic in higher amounts, cau...

Read the full Lobelia monograph → Herb & supplement monograph

Chickweed

Chickweed is a common edible wild plant traditionally used on the skin for itching and minor irritation, and taken as a tea or tincture for various complaints. Solid human studies are lackin...

Read the full Chickweed monograph → Herb & supplement monograph

Pleurisy Root

Interacts with 117 drugs

Pleurisy root is the dried root of Asclepias tuberosa (butterfly weed), a plant used in traditional North American and herbal medicine mainly for respiratory complaints. There is very little...

Read the full Pleurisy Root monograph → Herb & supplement monograph

Lungwort

Lungwort (Pulmonaria officinalis) is a traditional European herb long used as a tea for coughs and minor breathing complaints, named for its lung-shaped, spotted leaves. There is very little...

Read the full Lungwort monograph →
Sources

Sources & How We Checked

Lung & Bronchial Formula'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 25 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.

Marshmallow 5 references
  1. Monographs on the medicinal uses of plant drugs. Exeter, UK: European Scientific Co-op Phytother, 1997.
  2. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  5. Hage-Sleiman R, Mroueh M, Daher CF. Pharmacological evaluation of aqueous extract of Althaea officinalis flower grown in Lebanon. Pharm Biol 2011;49(3):327-33.

See these in context on the Marshmallow monograph →

Mullein 2 references
  1. Castro AI, Carmona JB, Gonzales FG, Nestar OB. Occupational airborne dermatitis from gordolobo (Verbascum densiflorum). Contact Dermatitis 2006;55(5):301.
  2. Flores Echaiz C, Al Ali A, Cao AQ, Sasseville D. Simultaneous contact dermatitis caused by Asteraceae and Verbascum thapsus. Contact Dermatitis 2017;76(5):316-8.

See these in context on the Mullein monograph →

Lobelia 6 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. McChargue DE, Collins FL Jr, Cohen LM. Effect of non-nicotinic moist snuff replacement and lobeline on withdrawal symptoms during 48-h smokeless tobacco deprivation. Nicotine Tob Res 2002;4:195-200. PubMed
  5. Stead LF, Hughes JR. Lobeline for smoking cessation. Cochrane Database Syst Rev 2000;2:CD000124. PubMed
  6. Plakun, A. L., Ambrus, J., Bross, I., Graham, S., Levin, M. L., and Ross, C. A. Clinical factors in smoking withdrawal: preliminary report. Am J Public Health Nations.Health 1966;56(3):434-441. PubMed

See these in context on the Lobelia monograph →

Chickweed 4 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Jovanovic M, Mimica-Dukic N, Poljacki M, Boza P. Erythema multiforme due to contact with weeds: a recurrence after patch testing. Contact Dermatitis 2003;48:17-25. PubMed
  3. Jovanovic, M., Poljacki, M., Mimica-Dukic, N., Boza, P., Vujanovic, Lj, Duran, V., and Stojanovic, S. Sesquiterpene lactone mix patch testing supplemented with dandelion extract in patients with allergic contact dermatitis, atopic dermatitis and non-alle
  4. Poljacki, M., Jovanovic, M., Boza, P., Mimica-Dukic, N., Petrovic, A., and Novovic, Z. [Is Vojvodina a risk area for contact weed allergies?]. Med Pregl. 2005;58(3-4):123-126. PubMed

See these in context on the Chickweed monograph →

Pleurisy Root 7 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  5. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  6. Gossel TA, Bricker JD. Principles of Clinical Toxicology. New York, NY:Raven Press, 1994.
  7. De Smet PAGM, Keller K, Hansel R, Chandler RF, Eds. Adverse Effects of Herbal Drugs 1. Verlag, Berlin: Springer, 1992. DOI

See these in context on the Pleurisy Root monograph →

Lungwort 1 reference
  1. Pyrrolizidine Alkaloids — NIH LiverTox Source

See these in context on the Lungwort 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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