Registered Malawi · PMRA

COFRID COMBINATION PRODUCT TABLET

LIQUORICE EXTRACT GLYCERRHIZA, P-MENTHAN, ANISED, PEPPERMINT OIL, EUCALYPTUS OIL, CREOSOTE

PMPB/PL69/39 TABLET respiratory system INN generic

What it does

Aniseed is a natural herb often used for its flavor and potential health benefits.

Commonly used for: digestive problems, coughs, breathing issues, bloating …

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Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.

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Medicine sourcing is available in Kenya only. We don't sell or dispense medicines - licensed pharmacies do.

Sourcing - Kenya only

Registration & product details

Registration no.
PMPB/PL69/39
Registration date
28/05/2001
Expiry date
31/03/2024
Status
Registered
Active ingredient
LIQUORICE EXTRACT GLYCERRHIZA, P-MENTHAN, ANISED, PEPPERMINT OIL, EUCALYPTUS OIL, CREOSOTE
Dosage form
TABLET
Strength
-
Pack size
-
Therapeutic class
-
ATC class (WHO)
R05CA - Expectorants
Drug group
RESPIRATORY SYSTEM
RxNorm RxCUI
2915
Manufacturer / MAH
-
Applicant / LTR
-
Country of origin
-

Source: Pharmacy and Medicines Regulatory Authority · fetched 2026-04-21 17:37:46 · updated 2026-09-29 04:33:06

Disclaimer: This information is sourced from Pharmacy and Medicines Regulatory Authority (Malawi). Always consult a qualified healthcare professional before using any medication.

About anised

Aniseed is a natural herb often used for its flavor and potential health benefits.

What it treats

  • digestive problems
  • coughs
  • breathing issues
  • bloating
  • gas

How it works

Aniseed may help soothe the digestive system and can have a calming effect.

Who it's for

Adults and children who are experiencing digestive discomfort or respiratory issues.

Cautions

  • • Should be used with care in pregnant or breastfeeding women.
  • • May cause allergic reactions in some individuals.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About creosote

Creosote is a natural product often used in traditional medicine for its potential health benefits.

What it treats

  • chronic cough
  • respiratory conditions

How it works

Creosote may help soothe irritation in the throat and respiratory tract.

Who it's for

Adults and children experiencing persistent cough or respiratory discomfort.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About eucalyptus

Eucalyptus is a natural remedy often used for its soothing properties, especially for respiratory issues.

What it treats

  • coughs
  • cold symptoms
  • respiratory infections

How it works

Eucalyptus contains compounds that can help relieve symptoms by reducing inflammation and acting as a mild antiseptic.

Who it's for

Eucalyptus is suitable for adults and children, but care should be taken with young children and those with allergies.

Cautions

  • • Avoid if allergic to eucalyptus or related plants.
  • • Use with caution in young children.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About extract

This medicine is an extract that is used for various health conditions.

What it treats

  • general health improvement
  • nutritional support

How it works

The extract may provide health benefits by supplying essential nutrients or compounds that support bodily functions.

Who it's for

This medicine is suitable for individuals looking to improve their overall health or address specific nutritional needs.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About glycerrhiza

Glycyrrhiza, commonly known as licorice root, is a natural remedy often used for its soothing effects on the stomach and respiratory system.

What it treats

  • sore throat
  • stomach ulcers
  • inflammation
  • coughs

How it works

Glycyrrhiza contains compounds that may help reduce inflammation and soothe irritation in the body.

Who it's for

Glycyrrhiza may be suitable for adults looking for natural relief from digestive or throat discomfort.

Cautions

  • • May cause high blood pressure if used in large amounts.
  • • Not recommended for pregnant women.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About liquorice

Liquorice is a natural substance often used for its soothing properties and flavor. It is found in various herbal remedies and candies.

What it treats

  • sore throat
  • stomach ulcers
  • coughs
  • stress relief

How it works

Liquorice contains compounds that can help reduce inflammation and soothe the digestive system.

Who it's for

Adults and children who need relief from throat discomfort or digestive issues.

Cautions

  • • Excessive use may lead to high blood pressure.
  • • People with heart conditions should be cautious.
  • • Not recommended during pregnancy without medical advice.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About p-menthan

p-Menthan is a natural compound often used for its soothing effects.

What it treats

  • muscle pain
  • joint pain
  • headaches

How it works

p-Menthan works by providing a cooling sensation that can help relieve pain and discomfort.

Who it's for

This product is suitable for adults and children experiencing mild to moderate pain.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About peppermint

Peppermint is a natural herb commonly used for its soothing properties.

What it treats

  • digestive issues (like indigestion)
  • headaches
  • muscle pain
  • colds and respiratory issues

How it works

Peppermint contains menthol, which helps relax muscles and has a cooling effect, providing relief from discomfort.

Who it's for

Anyone looking for natural relief from digestive problems, headaches, or muscle tension.

Cautions

  • • May cause allergic reactions in some people.
  • • Avoid if you have certain digestive conditions, like gastroesophageal reflux disease (GERD).

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

Clinical monograph: anised

Aniseed, derived from the Pimpinella anisum plant, is a spice and herbal remedy known for its aromatic properties. It has been used traditionally in culinary applications as well as in traditional medicine for its carminative and digestive benefits. Aniseed contains several active compounds, including anethole, which is responsible for its characteristic flavor and some of its therapeutic effects.

Indications

  • Digestive issues
  • Flatulence
  • Bloating
  • Cough relief
  • Menstrual discomfort

Dosage

Children: Refer to established herbal dosage guidelines and consult healthcare professionals for specific dosing information.

Adults: Refer to established herbal dosage guidelines and consult healthcare professionals for specific dosing information.

Mechanism of action

Anethole, the primary active component of aniseed, acts as a selective agonist for certain receptors, including the GABA(A) receptor, which may contribute to its calming effects. It also possesses anti-inflammatory and antimicrobial properties. The compounds in aniseed may enhance gastrointestinal motility and promote digestion by stimulating digestive enzymes.

Pharmacodynamics

Aniseed exhibits various pharmacodynamic effects, including anti-inflammatory, antifungal, and antispasmodic activities. It can promote the secretion of digestive juices, thereby aiding in digestion. Additionally, aniseed has been noted for its potential effects on the central nervous system, contributing to mild sedative effects.

Pharmacokinetics

The absorption of aniseed's active compounds occurs primarily in the gastrointestinal tract following oral ingestion. Anethole is metabolized in the liver, and its metabolites can be excreted in urine. Its half-life and specific metabolic pathways can vary based on individual factors such as age, health status, and concurrent medications.

Pregnancy

There is insufficient reliable information on the safety of anise during pregnancy. Caution is advised.

Breast-feeding

Anise is generally considered safe during breastfeeding in moderate amounts, but excessive consumption should be avoided.

Storage

Store in a cool, dry place away from direct sunlight.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: creosote

Creosote is a complex mixture of phenolic compounds derived from the dry distillation of wood tar or coal tar. It has been traditionally used as a topical antiseptic and a treatment for various skin conditions. Additionally, it has been utilized in the management of respiratory ailments due to its expectorant properties. Creosote is known for its strong odor and is typically available in a liquid form.

Indications

  • Topical antiseptic
  • Treatment of skin conditions such as eczema and psoriasis
  • Expectorant for respiratory conditions
  • Antifungal treatment

Dosage

Children: Refer to professional guidelines or specific product labeling for appropriate dosing.

Adults: Refer to professional guidelines or specific product labeling for appropriate dosing.

Mechanism of action

Creosote exhibits its effects primarily through the presence of phenolic compounds, which have antibacterial and antifungal properties. These compounds interact with the microbial cell membranes, leading to cell lysis and death. Additionally, creosote may stimulate mucous secretion in the respiratory tract, aiding in the expulsion of mucus.

Pharmacodynamics

Creosote has demonstrated antimicrobial activity against a variety of pathogens, including bacteria and fungi. It also has mild irritant properties that can stimulate the mucosal lining of the gastrointestinal tract and respiratory system, promoting expectoration. The phenolic compounds in creosote may also have anti-inflammatory effects, contributing to its therapeutic use in skin and respiratory conditions.

Pharmacokinetics

The pharmacokinetics of creosote are not well-characterized due to its complex composition. However, it is known that the absorption of phenolic compounds can occur through the skin and mucous membranes. Once absorbed, they may undergo hepatic metabolism and are excreted primarily in the urine. The onset of action varies depending on the route of administration and the specific formulation used.

Contra-indications

  • Hypersensitivity to creosote or any of its components
  • Severe liver disease
  • Active gastrointestinal bleeding
  • History of drug abuse

Adverse effects

  • Gastrointestinal irritation
  • Nausea and vomiting
  • Abdominal pain
  • Dizziness
  • Headache
  • Skin irritation
  • Respiratory distress (inhalation of vapors)

Interactions

  • May interact with other hepatotoxic drugs, increasing the risk of liver damage
  • Potentially enhances the effects of sedatives and other central nervous system depressants

Precautions

  • Use with caution in patients with liver impairment
  • Monitor for signs of gastrointestinal bleeding
  • Avoid use in patients with a history of substance abuse
  • Consider potential occupational exposure risks

Pregnancy

Creosote should be avoided during pregnancy due to potential teratogenic effects and lack of safety data.

Breast-feeding

Due to limited data, breastfeeding while using creosote is not recommended.

Storage

Store in a cool, dry place, away from direct sunlight. Keep out of reach of children.

Formulations

  • Liquid preparations for topical use
  • Ointments or creams containing creosote
  • Solutions for inhalation

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: eucalyptus

Eucalyptus is a genus of flowering trees and shrubs in the myrtle family, Myrtaceae. The leaves and oil extracted from eucalyptus are commonly used in traditional medicine and as flavoring agents. Eucalyptus oil is known for its antiseptic, anti-inflammatory, and analgesic properties, making it popular in respiratory therapies for conditions such as coughs, colds, and sinusitis.

Indications

  • Respiratory infections
  • Cough and cold symptoms
  • Sinusitis
  • Bronchitis
  • Muscle pain and inflammation

Dosage

Children: Refer to specific product guidelines or consult a healthcare professional for appropriate dosing of eucalyptus oil in children, as it varies based on formulation and indication.

Adults: Refer to specific product guidelines or consult a healthcare professional for appropriate dosing of eucalyptus oil, as it varies based on formulation and indication.

Mechanism of action

Eucalyptus oil contains compounds such as eucalyptol (1,8-cineole) that exhibit antimicrobial properties. It acts on the respiratory system by promoting bronchodilation and reducing mucus production. The oil also has a cooling effect, which can provide relief from symptoms of respiratory distress. Additionally, the oil's anti-inflammatory properties help decrease inflammation in the airways.

Pharmacodynamics

The primary active ingredient in eucalyptus oil, eucalyptol, interacts with the body's inflammatory response and can modulate the activity of neurotransmitters involved in pain signaling. It may enhance mucociliary clearance in the respiratory tract, facilitating the expulsion of mucus and pathogens. The analgesic effects can help relieve discomfort associated with respiratory infections.

Pharmacokinetics

Eucalyptus oil is typically administered via inhalation or topical application. When inhaled, components like eucalyptol are absorbed through the mucous membranes of the respiratory tract and rapidly distributed throughout the body. The oil is metabolized primarily in the liver, and its metabolites are excreted in urine. The half-life of eucalyptol varies but is generally short, necessitating frequent dosing for sustained effects.

Adverse effects

  • Allergic reactions
  • Skin irritation
  • Nausea
  • Vomiting
  • Diarrhea
  • Dizziness

Interactions

  • May interact with anticoagulants, potentially increasing bleeding risk
  • May enhance the effects of other medications that cause sedation

Precautions

  • Use with caution in individuals with asthma or other respiratory conditions
  • Avoid use in young children without medical supervision
  • Eucalyptus oil should not be ingested in large quantities due to toxicity

Pregnancy

Eucalyptus oil is generally considered unsafe in pregnancy due to potential toxicity and should be avoided unless prescribed by a healthcare professional.

Breast-feeding

Caution is advised when using eucalyptus during breastfeeding, as it may pass into breast milk and could affect the infant.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Formulations

  • Eucalyptus oil (topical, inhalation, or oral preparations)
  • Eucalyptus leaves (dried for teas or extracts)

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: extract

Extracts are concentrated preparations obtained from plants, herbs, or other natural sources through various extraction methods such as solvent extraction, steam distillation, or cold pressing. They are used for their therapeutic properties in herbal medicine and can contain a variety of bioactive compounds including alkaloids, flavonoids, terpenes, and essential oils. The specific effects and uses of an extract depend on its source material and the compounds it contains.

Indications

  • General wellness support
  • Anti-inflammatory effects
  • Antioxidant activity
  • Digestive aid
  • Support for immune function

Dosage

Children: Paediatric dosing should be determined based on the specific extract and its intended use. Consultation with a healthcare provider is recommended for accurate dosing.

Adults: Dosage varies widely depending on the specific extract and formulation. It is essential to follow the manufacturer's instructions or consult a healthcare professional for appropriate dosing.

Mechanism of action

The mechanism of action of herbal extracts can vary significantly based on their constituents. Commonly, they exert their effects through multiple pathways including modulation of neurotransmitter systems, interference with inflammatory processes, or direct antioxidant activity. Some extracts may activate certain receptors or inhibit enzymes related to disease processes.

Pharmacodynamics

The pharmacodynamics of extracts is complex due to the presence of multiple active compounds which can have synergistic or antagonistic effects. These compounds may influence cellular signaling pathways, alter gene expression, or modulate immune response. The overall pharmacological profile is determined by the specific composition of the extract, its concentration, and the biological target it interacts with.

Pharmacokinetics

The pharmacokinetics of extracts involves absorption, distribution, metabolism, and excretion of the active compounds. Generally, herbal extracts are absorbed in the gastrointestinal tract, with bioavailability influenced by factors such as formulation, the presence of food, and individual metabolic differences. Compounds may undergo hepatic metabolism, and elimination can occur through urine or feces, depending on their chemical nature.

Pregnancy

Consult a healthcare professional before use, as the safety of the extract during pregnancy has not been established.

Breast-feeding

Consult a healthcare professional before use, as the safety of the extract during breastfeeding has not been established.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: glycerrhiza

Glycyrrhiza, commonly known as licorice, is a herb derived from the root of the Glycyrrhiza glabra plant. It has been traditionally used in herbal medicine for its anti-inflammatory, antiviral, and demulcent properties. The active component of glycyrrhiza is glycyrrhizin, which is responsible for its sweet taste and many of its therapeutic effects. Glycyrrhiza is often used to soothe gastrointestinal issues, respiratory conditions, and as an adjunct in the treatment of certain viral infections.

Indications

  • Gastrointestinal disorders
  • Sore throat
  • Cough
  • Adjuvant therapy for viral infections
  • Chronic fatigue syndrome
  • Adrenal insufficiency

Dosage

Children: Refer to established guidelines and clinical protocols for specific dosing recommendations.

Adults: Refer to established guidelines and clinical protocols for specific dosing recommendations.

Mechanism of action

Glycyrrhizin, the active compound in glycyrrhiza, inhibits the enzyme 11-beta-hydroxysteroid dehydrogenase type 2, which leads to increased levels of cortisol. This mechanism results in a pseudohyperaldosteronism effect, enhancing sodium retention and potassium excretion. Furthermore, glycyrrhiza exhibits anti-inflammatory effects through inhibition of the production of inflammatory cytokines and modulation of immune response pathways.

Pharmacodynamics

Glycyrrhiza has a variety of pharmacological effects, including anti-inflammatory, immunomodulatory, and antiviral properties. It has been shown to enhance mucosal defense mechanisms, making it beneficial in gastrointestinal disorders. Its immunomodulatory effects may be attributed to its ability to influence the activity of various immune cells, including macrophages and lymphocytes.

Pharmacokinetics

Glycyrrhizin is primarily absorbed in the gastrointestinal tract, with peak plasma concentrations occurring within a few hours after ingestion. It undergoes extensive metabolism in the liver, where it is converted into various metabolites. It has a relatively long half-life, allowing for sustained effects. The elimination is primarily renal, with metabolites excreted in the urine. The pharmacokinetics can be influenced by factors such as age, liver function, and co-administration of other medications.

Contra-indications

  • Hypersensitivity to glycyrrhiza or any of its components
  • Severe renal impairment
  • Hypertension
  • Hypokalemia
  • Corticosteroid therapy

Adverse effects

  • Hypertension
  • Hypokalemia
  • Edema
  • Headache
  • Fatigue
  • Gastrointestinal disturbances
  • Muscle weakness
  • Heart rhythm disturbances

Interactions

  • Corticosteroids - may enhance the effects of corticosteroids
  • Diuretics - glycyrrhiza may counteract the effects of potassium-sparing diuretics
  • Antihypertensives - may reduce the efficacy of antihypertensive medications
  • Cardiac glycosides - may increase the risk of arrhythmias due to hypokalemia

Precautions

  • Use with caution in patients with cardiovascular disease
  • Monitor blood pressure and potassium levels during prolonged use
  • Avoid excessive doses to prevent serious side effects
  • Consult healthcare professionals before use in pregnant or breastfeeding women

Pregnancy

Glycyrrhiza should be used with caution during pregnancy, as excessive consumption may be linked to risks such as preterm labor or fetal harm.

Breast-feeding

Limited data on the safety of glycyrrhiza during breastfeeding; consult a healthcare professional before use.

Storage

Store in a cool, dry place, away from direct sunlight. Keep out of reach of children.

Formulations

  • Dried root
  • Powdered extract
  • Tincture
  • Syrup
  • Capsules

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: liquorice

Liquorice, derived from the root of Glycyrrhiza glabra, has been used in traditional medicine for centuries. It contains glycyrrhizin, the primary active compound, which is responsible for its sweet flavor and various therapeutic properties. Liquorice is often utilized for its anti-inflammatory, antiviral, and expectorant effects, making it a common ingredient in cough syrups and herbal remedies.

Indications

  • Cough and respiratory tract disorders
  • Peptic ulcer disease
  • Gastroesophageal reflux disease (GERD)
  • Adrenal insufficiency
  • Inflammatory conditions

Dosage

Children: Refer to the BNF for Children for appropriate dosing.

Adults: Refer to reputable clinical guidelines or pharmacopoeias for appropriate dosing.

Mechanism of action

Glycyrrhizin inhibits the enzyme 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2), which typically converts active cortisol to its inactive form, cortisone. This inhibition leads to increased cortisol levels, resulting in mineralocorticoid-like effects such as sodium retention and potassium excretion, which can influence blood pressure and fluid balance. Additionally, liquorice exhibits antioxidant properties and may modulate immune responses.

Pharmacodynamics

Liquorice displays a variety of pharmacological effects including anti-inflammatory, antiviral, and gastroprotective actions. Its anti-inflammatory effects are attributed to the inhibition of pro-inflammatory cytokines and the suppression of immune cell activation. The antiviral properties are primarily linked to its action against viruses such as herpes simplex and hepatitis C. Moreover, liquorice can enhance mucus secretion in the respiratory tract, facilitating the expulsion of phlegm.

Pharmacokinetics

Liquorice is absorbed from the gastrointestinal tract, with glycyrrhizin being the most bioactive compound. Its metabolites can be detected in the plasma, and the elimination half-life is variable, generally between 6 to 12 hours. The metabolism of glycyrrhizin occurs primarily in the liver, and it undergoes phase I and phase II metabolic processes. Excretion mainly occurs through urine, with both active and inactive metabolites present.

Contra-indications

  • Hypersensitivity to liquorice or any of its components
  • Severe hypertension
  • Heart disease
  • Kidney disease
  • Cirrhosis of the liver

Adverse effects

  • Hypertension
  • Hypokalemia
  • Edema
  • Headache
  • Fatigue
  • Gastrointestinal disturbances
  • Muscle weakness
  • Arrhythmias

Interactions

  • Corticosteroids - may enhance the effects of corticosteroids
  • Digoxin - may increase the risk of digoxin toxicity due to hypokalemia
  • Diuretics - may reduce effectiveness of potassium-sparing diuretics and increase potassium loss
  • Antihypertensives - may counteract the effects of antihypertensive medications

Precautions

  • Use with caution in patients with hypertension
  • Monitor electrolytes, particularly potassium levels in long-term use
  • Avoid excessive consumption, particularly in patients with underlying cardiovascular conditions

Pregnancy

Use during pregnancy is not well studied; consult a healthcare provider before use.

Breast-feeding

Limited information available; consult a healthcare provider before use.

Storage

Store in a cool, dry place away from direct sunlight.

Formulations

  • Dried root
  • Powder
  • Extracts
  • Syrups

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: pmenthan

BNF-referenced

Pmenthan is a chemical compound with the molecular formula C10H20. It is primarily recognized for its role in various applications, including as a solvent and in the formulation of fragrances. While specific therapeutic indications are limited, its properties make it a useful compound in the pharmaceutical and cosmetic industries.

Dosage

Children: Refer to specific product information or clinical guidelines, as dosing may vary based on formulation and intended use.

Adults: Refer to specific product information or clinical guidelines, as dosing may vary based on formulation and intended use.

Mechanism of action

Pmenthan functions as a hydrocarbon, which can interact with biological membranes and influence membrane fluidity. Its precise mechanism of action is not well-defined in the context of medicinal use, but it may contribute to the solubilization of other compounds or act as a carrier in formulations.

Pharmacodynamics

The pharmacodynamics of pmenthan are not extensively documented, but as a hydrocarbon, it may affect the permeability of cell membranes, potentially altering the absorption and distribution of co-administered drugs or compounds.

Pharmacokinetics

Limited pharmacokinetic data are available for pmenthan. Generally, hydrocarbons are absorbed through the skin or respiratory tract, metabolized in the liver, and excreted via urine. The exact pathways and half-life of pmenthan in humans are not well studied.

Pregnancy

Safety in pregnancy has not been established.

Breast-feeding

Safety during breastfeeding has not been established.

Storage

Store in a cool, dry place away from direct light.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: peppermint

Peppermint, derived from the Mentha piperita plant, is commonly used in traditional and complementary medicine. Its essential oil contains menthol, which is primarily responsible for its therapeutic effects. Peppermint is often utilized for its soothing properties, particularly in digestive disorders and respiratory conditions. It is available in various forms, including oil, capsules, and teas.

Indications

  • Irritable bowel syndrome
  • Dyspepsia
  • Nausea
  • Headaches
  • Respiratory congestion

Dosage

Children: Refer to the BNF for Children for appropriate dosing guidelines.

Adults: Refer to the relevant product-specific information for dosing recommendations, as peppermint formulations can vary widely.

Mechanism of action

The primary active component, menthol, works by activating the TRPM8 (transient receptor potential cation channel subfamily M member 8) ion channel, which is involved in the sensation of cold and cooling. This action can lead to a localized anesthetic effect, reducing pain and discomfort. Additionally, menthol can cause relaxation of smooth muscle in the gastrointestinal tract, aiding in the relief of digestive symptoms.

Pharmacodynamics

Peppermint exhibits antispasmodic effects, particularly in the gastrointestinal tract, by relaxing the smooth muscles. It also has a mild analgesic effect due to its cooling sensation, which can provide symptomatic relief in various conditions. Furthermore, peppermint oil may have antimicrobial properties, contributing to its use in treating certain infections.

Pharmacokinetics

Menthol is rapidly absorbed after oral administration and is metabolized in the liver. The peak plasma concentration typically occurs within a few hours. The elimination half-life of menthol is approximately 1.5 to 2 hours, and it is primarily excreted in the urine as metabolites. The pharmacokinetics of peppermint oil can vary based on the formulation and route of administration.

Interactions

  • peppermint oil + lomitapide: Unknown (increases exposure)

Pregnancy

Peppermint is generally considered safe for use in pregnancy when used in culinary amounts. However, high doses should be avoided due to potential uterine stimulation.

Breast-feeding

Peppermint is considered safe during breastfeeding when used in culinary amounts. Caution is advised with high doses as effects on the infant are not well studied.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Formulations

  • Peppermint oil
  • Peppermint extract
  • Peppermint tea

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Molecular reference: p-menthan

PubChem CID 7459

Molecular formula: C10H20

Source: PubChem (NCBI) · pathways from PathBank, Reactome, WikiPathways & PharmGKB.

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The same active ingredient registered across other registries we cover - including different brands.