HEALTH TALK
Hibiscus (Rosemallow, Karkadeh)
This herbal infusion is obtained from the dried leaves and flowers of cultivated Hibiscus plants.
By H. S. Nemr
Source and chemical components
The main components of this infusion are flavonoidal glycosides, mucilage, vitamin C, and tannins.
The mucilage present in this infusion has demulcent and emollient properties. The flavonoidal glycosides have expectorant and anti oxidant properties while the tannins are responsible for the astringent effect.
Therapeutic and reported folk uses
Preparations are used topically to reduce swelling and local irritation as folk therapy. It is also used as an infusion to relieve symptoms of cough, pharyngitis, bronchitis and hoarseness of voice and is approved by the German Commission E to be used in these indications.
Hibiscus.
Dosage
The suggested dose is 5 grams of the chopped herb taken orally or as an herbal infusion.
Adverse reactions and precautions
No adverse reactions have been reported in humans. Some Hibiscus species have been linked to muscle spasms in animals. This herb should be avoided during pregnancy and breastfeeding.
Interactions
No drug interactions have been reported for this herb.
H.S. Nemr is a graduate of BAU pharmacy school. He is currently a medication safety officer at Johns Hopkins Aramco Healthcare system.
References
- Professional’s Handbook of Complementary Alternative Medicines, 2nd edition.
- Ghazanfar, S. Handbook of Arabian Medicinal Plants 1994.
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