Marshmallow: Uses & Information

It has been traditionally used for cough, inflammation of the mouth and stomach, and peptic ulcers. It appears to have antimicrobial and anti-inflammatory properties and may be used topically to increase epithelialization of wounds. However, there are no recent clinical trials to support these uses.


Root: 6 g/day.

Leaf: 10 g/day.

Marshmallow syrup: 10 g/day.

Topical: 5 to 10 g in an ointment or cream base or 5% powdered marshmallow leaf applied 3 times daily.

Gargle: 2 g soaked in 240 mL of cold water for 2 hours then gargled. Hot water should not be used.


Contraindications have not been identified.


Avoid use. Information regarding safety and efficacy in pregnancy and lactation is lacking.


Oral medications: When taken with other oral medications, marshmallow may delay the absorption of the other medications.

Oral hypoglycemic agents/Insulin: Due to potential additive hypoglycemic effects, marshmallow should be used cautiously in patients receiving oral hypoglycemic agents and insulin.

Topical corticosteroids: Marshmallow may enhance the effects of topical corticosteroids. Use caution.

Aminoglycosides: Use caution or avoid use of marshmallow in patients receiving aminoglycosides such as gentamicin.

Adverse Reactions

Anecdotal evidence suggests potential allergic reactions and hypoglycemia.


* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.