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Dietary supplement

Licorice Plus (Natural Licorice Flavor) Ingredients & Drug Interactions

by Priority One Nutritional Supplements

Licorice Plus (Natural Licorice Flavor) label
See full label image
Tablet Or Pill 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 Licorice Plus (Natural Licorice Flavor) 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

Licorice Plus (Natural Licorice Flavor) is a dietary supplement by Priority One Nutritional Supplements with 3 active ingredients. Its ingredients are commonly taken for anxiety and stress, sleep problems, digestive upset.Based on those ingredients, 2,119 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Slippery Elm, Licorice DGL, Lemon Balm Leaf Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements

Ask about any prescription or over-the-counter medication and we check it for interactions with Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements

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 Jul 11, 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 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Licorice Plus contains three active ingredients. Lemon balm leaf extract is included for its traditional use in addressing stress and possibly cold sores; it seems to calm nervous system activity.

Licorice DGL (deglycyrrhizinated licorice — a form with the glycyrrhizin removed) is used for skin conditions like eczema and mouth sores. Slippery elm rounds out the formula; it's a demulcent, meaning it coats and soothes mucous membranes.

The product also contains several inactive ingredients — stevia, xanthan gum, dextrose, natural licorice flavor, dextrin, anise oil, stearic acid, and vegetable magnesium stearate — which serve as sweeteners, thickeners, binders, and fillers to give the tablet its form and taste.

Does it work?

Moderate evidence
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

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Moderate

Some clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Herpes labialis (cold sores) — rated "Possibly Effective" (Lemon Balm) (Natural Medicines).
  • On file: Depression — rated "Possibly Effective" (Lemon Balm) (Natural Medicines).
  • On file: Stress — rated "Possibly Effective" (Lemon Balm) (Natural Medicines).
  • On file: Atopic dermatitis (eczema) — rated "Possibly Effective" (Licorice) (Natural Medicines).
  • On file: Canker sores — rated "Possibly Effective" (Licorice) (Natural Medicines).

Lemon balm leaf extract is rated possibly effective for cold sores and stress, and possibly effective for depression — meaning there's some promising evidence, but it's not rock-solid. Licorice DGL is rated possibly effective for eczema and canker sores, but the data on its use for Addison disease and asthma isn't strong enough to rate.

Slippery elm lacks established evidence for any of its traditional uses in the data we hold — constipation, cough, inflammatory bowel disease, diarrhea, and cancer are all rated insufficient evidence to rate. In short, the lemon balm and licorice pieces have modest support; the slippery elm's effectiveness isn't established here.

The evidence, ingredient by ingredient Lemon Balm Licorice Slippery Elm

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 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lemon balm is generally well tolerated for short-term use, though long-term safety hasn't been well studied. Dizziness and sedation have been reported, but they don't show up more often than placebo in clinical trials.

One rare case of heart rhythm changes was reported after using a multi-ingredient product containing lemon balm, but it's unclear whether lemon balm was responsible. Pregnancy safety data advises against it unless your doctor says otherwise; breastfeeding safety is uncertain, so talk to your doctor first.

Licorice DGL is generally well tolerated in the amounts and forms typically used, though high doses or long-term use of full-strength licorice can cause serious problems. The most common side effects are headache, nausea, and vomiting when taken by mouth.

Topically, contact dermatitis has been reported. Pregnancy safety data advises against licorice supplements; breastfeeding safety information isn't available.

Slippery elm is generally well tolerated short-term, but robust safety data are limited. It may cause contact dermatitis or allergic reactions if you're sensitive to elm pollen.

Pregnancy and breastfeeding safety data are insufficient — talk to your doctor if you're pregnant or nursing.

Side effects, ingredient by ingredient Lemon Balm Licorice Slippery Elm

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?
  • 3 of the 3 matched ingredients can interact with medications — Lemon Balm, Licorice, Slippery Elm.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; heart-rhythm medications.
  • For scale: 2,120 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.

Check before starting if you take blood thinners like warfarin (Coumadin), because licorice may reduce their effectiveness. Also double-check if you're on CNS depressants (sedatives, sleep aids, anxiety medications), thyroid hormone replacement, heart medications like digoxin, loop diuretics (water pills), midazolam, or any cancer drugs including cisplatin or paclitaxel.

Slippery elm may also slow absorption of any oral medication you take, so space your doses apart if possible. Use the medication checker on this page to be sure.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Licorice Plus may be worth considering if you're looking to support stress or skin health and you're not on medications that interact with lemon balm or licorice. If you take any prescription drugs — especially blood thinners, heart medications, water pills, sedatives, thyroid hormones, or chemotherapy — you'll need to check with us or your pharmacist first.

The ingredient interactions here are real enough to warrant that conversation.

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

Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 13, 2022.

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 Licorice Plus (Natural Licorice Flavor), straight from the product label.

Brand Priority One Nutritional Supplements
Barcode (UPC) 815354020853
Net contents 90 Chewable Tablet(s)
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 277391
Product type Botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements, 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 Chewable Tablet(s)
Maximum serving Sizes:
1 Chewable Tablet(s)
Servings per container
90
UPC/BARCODE
815354020853
IngredientAmount% DV
Lemon Balm Leaf Extract200 mg--
Licorice DGL400 mg--
Slippery Elm100 mg--

Other ingredients: Stevia, Xanthan Gum, Dextrose, natural Licorice flavor, Dextrin, Anise Oil, Stearic Acid, Vegetable Magnesium Stearate

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.
Precautions

Warning: Contains licorice which should not be ingested by pregnant women.

Keep out of reach of children.

Suggested/Recommended/Usage/Directions

Recommendations: Take one (1) chewable tablet three times a day or as directed by your physician.

Storage

Keep container tightly closed, store in a cool, dry place.

FDA Disclaimer Statement

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

Formulation

Contains no preservatives.

Vegetarian formulation

Non-GMO

Not a significant source of total sugars.

General Statements

Bisphenol-A (BPA) & Phthalate Free

For professional use only.

Seals/Symbols

GMP Certified

Brand IP Statement(s)

Priority One Nutritional Supplements Inc since 1988

Good & Sweet is a registered trademark or Phyto Tech Corp.

FDA Statement of Identity

A Dietary Supplement

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

See for yourself

Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements label

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

Licorice Plus (Natural Licorice Flavor) 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 Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Chewable Tablet(s) Dosage formTablet Or Pill Servings per container90 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.

Lemon Balm Leaf Extract

Interacts with
264 drugs
200 mg per serving

Lemon balm is a gentle, lemon-scented mint-family herb traditionally used to ease stress, support sleep, and calm digestion, and topically for cold so...

Lemon Balm Leaf Extract monograph & interactions

Licorice DGL

Interacts with
1,040 drugs
400 mg per serving

Licorice root is a traditional remedy used for sore throats, coughs, and digestive complaints, but solid human evidence is limited for most uses. Regu...

Licorice DGL monograph & interactions

Slippery Elm

Interacts with
2,022 drugs
100 mg per serving

Slippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated di...

Slippery Elm monograph & interactions

Other (inactive) ingredients: Stevia, Xanthan Gum, Dextrose, Natural Licorice flavor, Dextrin, Anise Oil, Stearic Acid, Vegetable Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements Drug Interactions

Want to check YOUR meds against Licorice Plus (Natural Licorice Flavor)?

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
2,119Drugs
2,116 Moderate 3 Minor

Ingredients driving the most interactions

Slippery Elm 2,022
Licorice DGL 1,040
Lemon Balm Leaf Extract 264

Individual Drug Interactions

The ingredients in Licorice Plus (Natural Licorice Flavor) interact with 2,119 drugs. Click any drug to see the details.

3 of the 3 ingredients in Licorice Plus (Natural Licorice Flavor) interact with drugs. Each result below shows which ingredient is responsible. Slippery Elm Licorice DGL Lemon Balm Leaf Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Licorice Plus (Natural Licorice Flavor) 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.

Slippery Elm1 drug type · 2,022 drugs

Oral Drugs

Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Slippery elm inner bark contains mucilage, which may interfere with the absorption of orally administered drugs.

Likelihood Possible Evidence D
Slippery Elm full monograph & interactions

Licorice DGL18 drug types · 1,040 drugs

Antihypertensive Drugs

Theoretically, licorice might reduce the effects of antihypertensive drugs.
In human research, licorice increases blood pressure in a dose-dependent manner.

Likelihood Possible Evidence B
Cisplatin (Platinol-Aq)

Theoretically, licorice might reduce the effects of cisplatin.
In animal research, licorice diminished the therapeutic efficacy of cisplatin.

Likelihood Possible Evidence D
Corticosteroids

Theoretically, concomitant use of licorice and corticosteroids might increase the side effects of corticosteroids.
Case reports suggest that concomitant use of licorice and oral corticosteroids, such as hydrocortisone, can potentiate the duration of activity and increase blood levels of corticosteroids. Additionally, in one case report, a patient with neurogenic orthostatic hypertension stabilized on fludrocortisone 0.1 mg twice daily developed pseudohyperaldosteronism after recent consumption of large amounts of black licorice.

Likelihood Possible Evidence D
Cytochrome P450 2B6 (Cyp2B6) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2B6.
In vitro research shows that licorice extract and glabridin, a licorice constituent, inhibit CYP2B6 isoenzymes. Licorice extract from the species G. uralensis seems to inhibit CYP2B6 isoenzymes to a greater degree than G. glabra extract in vitro. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2B6; however, these interactions have not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2C19.
In vitro, licorice extracts from the species G. glabra and G. uralensis inhibit CYP2C19 isoenzymes in vitro. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2C19; however, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C8 (Cyp2C8) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2C8.
In vitro, licorice extract from the species G. glabra and G. uralensis inhibits CYP2C8 isoenzymes. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2C8; however, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, licorice might increase or decrease levels of drugs metabolized by CYP2C9.
There is conflicting evidence about the effect of licorice on CYP2C9 enzyme activity. In vitro research shows that extracts from the licorice species G. glabra and G. uralensis moderately inhibit CYP2C9 isoenzymes. However, evidence from an animal model shows that licorice extract from the species G. uralensis can induce hepatic CYP2C9 activity. Until more is known, licorice should be used cautiously in people taking CYP2C9 substrates.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, licorice might increase or decrease levels of drugs metabolized by CYP3A4.
Pharmacokinetic research shows that the licorice constituent glycyrrhizin, taken in a dosage of 150 mg orally twice daily for 14 days, modestly decreases the area under the concentration-time curve of midazolam by about 20%. Midazolam is a substrate of CYP3A4, suggesting that glycyrrhizin modestly induces CYP3A4 activity. Animal research also shows that licorice extract from the species G. uralensis induces CYP3A4 activity. However, licorice extract from G. glabra species appear to inhibit CYP3A4-induced metabolism of testosterone in vitro. It is thought that the G. glabra inhibits CYP3A4 due to its constituent glabridin, which is a moderate CYP3A4 inhibitor in vitro and not present in other licorice species. Until more is known, licorice should be used cautiously in people taking CYP3A4 substrates.

Likelihood Possible Evidence B
Digoxin (Lanoxin)

Theoretically, concomitant use of licorice with digoxin might increase the risk of cardiac toxicity.
Overuse or misuse of licorice with cardiac glycoside therapy might increase the risk of cardiac toxicity due to potassium loss.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, concomitant use of licorice with diuretic drugs might increase the risk of hypokalemia.
Overuse of licorice might compound diuretic-induced potassium loss. In one case report, a 72-year-old male with a past medical history of hypertension, type 2 diabetes, hyperlipidemia, arrhythmia, stroke, and hepatic dysfunction was hospitalized with severe hypokalemia and uncontrolled hypertension due to pseudohyperaldosteronism. This was thought to be provoked by concomitant daily consumption of a product containing 225 mg of glycyrrhizin, a constituent of licorice, and hydrochlorothiazide 12.5 mg for 1 month.

Likelihood Possible Evidence D
Estrogens

Theoretically, licorice might increase or decrease the effects of estrogen therapy.
Theoretically, licorice might interfere with estrogen therapy due to estrogenic and anti-estrogenic effects.

Likelihood Possible Evidence D
Loop Diuretics

Theoretically, loop diuretics might increase the mineralocorticoid effects of licorice.
Theoretically, loop diuretics might enhance the mineralocorticoid effects of licorice by inhibiting the enzyme that converts cortisol to cortisone; however, bumetanide (Bumex) does not appear to have this effect.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, licorice might decrease levels of midazolam.
In humans, the licorice constituent glycyrrhizin appears to moderately induce the metabolism of midazolam. This is likely due to induction of cytochrome P450 3A4 by licorice. Until more is known, licorice should be used cautiously in people taking midazolam.

Likelihood Possible Evidence B
P-Glycoprotein Substrates

Theoretically, licorice might decrease the absorption of P-glycoprotein substrates.
In vitro research shows that licorice can increase P-glycoprotein activity.

Likelihood Possible Evidence D
Paclitaxel (Abraxane, Onxol)

Theoretically, licorice might decrease plasma levels and clinical effects of paclitaxel.
Multiple doses of licorice taken concomitantly with paclitaxel might reduce the effectiveness of paclitaxel. Animal research shows that licorice 3 grams/kg given orally for 14 days before intravenous administration of paclitaxel decreases the exposure to paclitaxel and increases its clearance. Theoretically, this occurs because licorice induces cytochrome P450 3A4 enzymes, which metabolize paclitaxel. Notably, a single dose of licorice did not affect exposure or clearance of paclitaxel.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, licorice might decrease plasma levels and clinical effects of warfarin.
Licorice seems to increase metabolism and decrease levels of warfarin in animal models. This is likely due to induction of cytochrome P450 2C9 (CYP2C9) metabolism by licorice. Advise patients taking warfarin to avoid taking licorice.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, licorice might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that licorice induces CYP1A2 enzymes.

Likelihood Possible Evidence D
Methotrexate (Trexall, Others)

Theoretically, licorice might increase levels of methotrexate.
Animal research suggests that intravenous administration of glycyrrhizin, a licorice constituent, and high-dose methotrexate may delay methotrexate excretion and increase systemic exposure, leading to transient elevations in liver enzymes and total bilirubin. This interaction has not yet been reported in humans.

Likelihood Unlikely Evidence D
Licorice DGL full monograph & interactions

Lemon Balm Leaf Extract2 drug types · 264 drugs

Cns Depressants

Theoretically, concomitant use of lemon balm might have additive effects with CNS depressant drugs.
Lemon balm seems to have CNS depressant activity in animals and in humans.

Likelihood Possible Evidence B
Thyroid Hormone

Theoretically, lemon balm might interfere with thyroid hormone replacement therapy.
In vitro, constituents of lemon balm extract bind to thyroid stimulating hormone (TSH), preventing TSH receptor-binding and leading to the inhibition of TSH-stimulated adenylate cyclase activity. In animals, lemon balm extract has been shown to decrease levels of circulating TSH and inhibit thyroid secretion.

Likelihood Possible Evidence D
Lemon Balm Leaf Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Licorice Plus (Natural Licorice Flavor), from the product label.

Priority One Nutritional Supplements

See all Priority One Nutritional Supplements products
Name
Priority One Nutritional Supplements, Inc.
Pharmacist Counseling Corner

Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements: Common Questions

Does Licorice Plus (Natural Licorice Flavor) by Priority One Nutritional Supplements interact with any medications?
Yes. Based on its ingredients, Licorice Plus (Natural Licorice Flavor) has a known interaction with 2,119 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Licorice Plus (Natural Licorice Flavor) contains 3 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.
Can I take this if I'm pregnant?
Lemon balm is best avoided in pregnancy unless your doctor advises otherwise, and licorice supplements should also be avoided because of potential harmful effects. There isn't enough safety data on slippery elm in pregnancy either. Talk to your doctor or pharmacist before using this product if you're pregnant or planning to become pregnant.
Is it safe to breastfeed while taking this?
Lemon balm and slippery elm have limited safety information for breastfeeding, so you should talk to your doctor first. Licorice safety while breastfeeding isn't well documented, so that's another conversation to have. Personalized advice from your pharmacist or doctor is best here.
What's the difference between this licorice and regular licorice?
This product contains licorice DGL, which stands for deglycyrrhizinated licorice — a form where glycyrrhizin, the compound that causes most of licorice's side effects and interactions at high doses, has been removed. That makes DGL gentler on your body when used as directed, though it still has documented interactions with some medications.
Will lemon balm make me sleepy?
Lemon balm does have CNS depressant activity, meaning it calms the nervous system. Dizziness and sedation have been reported in some people, though clinical trials suggest these effects don't occur more often than placebo. If you notice drowsiness, be cautious with driving or operating machinery.
Can I take this with other medications or supplements?
This product interacts with a significant number of medications — everything from blood thinners to heart drugs to cancer medications. Don't assume it's safe to combine. Use the medication checker on this page with your exact prescriptions, and talk to your pharmacist before starting.

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.

Licorice Plus (Natural Licorice Flavor) label
Go deeper

The Full Monographs Behind Licorice Plus (Natural Licorice Flavor)’s Ingredients

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

Herb & supplement monograph

Lemon Balm

Interacts with 264 drugs

Lemon balm is a gentle, lemon-scented mint-family herb traditionally used to ease stress, support sleep, and calm digestion, and topically for cold sores. Early studies are promising but gen...

Read the full Lemon Balm monograph → Herb & supplement monograph

Licorice

Interacts with 1,040 drugs

Licorice root is a traditional remedy used for sore throats, coughs, and digestive complaints, but solid human evidence is limited for most uses. Regular licorice contains glycyrrhizin, whic...

Read the full Licorice monograph → Herb & supplement monograph

Slippery Elm

Interacts with 2,022 drugs

Slippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated digestive tracts. Its mucilage can coat an...

Read the full Slippery Elm monograph →
Sources

Sources & How We Checked

Licorice Plus (Natural Licorice Flavor)'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 107 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.

Lemon Balm 12 references
  1. Wolbling RH, Leonhardt K. Local therapy of herpes simplex with dried extract from Melissa officinalis. Phytomedicine 1994;1:25-31.
  2. Akhondzadeh S, Noroozian M, Mohammadi M, et al. Melissa officinalis extract in the treatment of patients with mild to moderate Alzheimer's disease: a double blind, randomised, placebo controlled trial. J Neurol Neurosurg Psychiatry 2003;74:863-6. PubMed
  3. Kennedy DO, Scholey AB, Tildesley NT, et al. Modulation of mood and cognitive performance following acute administration of Melissa officinalis (lemon balm). Pharmacol Biochem Behav 2002;72:953-64. PubMed
  4. Albrecht M, Berger W, Laux P, Schmidt U, et al. Psychopharmaka und Verkehrssicherheit. Der Einfluß von Euvegal® - Dragees forte auf die Fahrtüchtigkeit und Kombinationswirkungen mit Alkohol Z Allg Med 1995;71:1215-25.
  5. Herberg, KW. Nebenwirkungen pflanzlicher Beruhigungsmittel/ Leistung und Befinden nach Einnahme einer Baldrian-Hopfen-Kombination. Z.Allg Med 1996;72:234-240.
  6. Soulimani R, Fleurentin J, Mortier F, et al. Neurotropic action of the hydroalcoholic extract of Melissa officinalis in the mouse. Planta Med. 1991 Apr;57:105-9.
  7. Sourgens H, Winterhoff H, Gumbinger HG, et al. Antihormonal effects of plant extracts. TSH- and prolactin-suppressing properties of Lithospermum officinale and other plants. Planta Med. 1982 Jun;45:78-86. DOI
  8. Auf'mkolk M, Ingbar JC, Amir SM, et al. Inhibition by certain plant extracts of the binding and adenylate cyclase stimulatory effect of bovine thyrotropin in human thyroid membranes. Endocrinology. 1984 Aug;115:527-34. PubMed
  9. Santini F, Vitti P, Ceccarini G, et al. In vitro assay of thyroid disruptors affecting TSH-stimulated adenylate cyclase activity. J Endocrinol Invest. 2003 Oct;26:950-5. PubMed
  10. Alijaniha F, et al. Heart palpitation relief with Melissa officinalis leaf extract: double blind, randomized, placebo controlled trial of efficacy and safety. J Ethnopharmacol. 2015;164:378-384. doi: 10.1016/j.jep.2015.02.007. Epub 2015 Feb 11. PubMed
  11. Araj-Khodaei M, Noorbala AA, Yarani R, et al. A double-blind, randomized pilot study for comparison of Melissa officinalis L. and Lavandula angustifolia Mill. with Fluoxetine for the treatment of depression. BMC Complement Med Ther. 2020;20(1):207. PubMed
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Slippery Elm 3 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
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See these in context on the Slippery Elm monograph →

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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.

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