Ephedra

(Ephedra Sinica, E. Intermedla, E. Equisetina)

Also called: Ma-huang, Chinese jointfir (E. sinica). Source: Native to the steppes of north and north-western China.

Medicinal Uses: Mild seasonal or long-term asthma, nasal congestion, sinusitis.

Part used: Stem.

Forms available: Capsules, tablets, teas, tinctures. Some products are standardised to 6 to 8 per cent ephedrine/pseudoephedrine.

Caution: Don't use ephedra or products that contain it if you have high blood pressure, heart disease, thyroid disease, diabetes, anorexia, bulimia or glaucoma. The herb may interact with MAO inhibitors (antidepressants), cardiac glycoside drugs and pharmaceuticals, so consult your doctor before using it.

Avoid ephedra if you're pregnant or breastfeeding unless under medical supervision. Numerous side effects of ephedra include insomnia, nervousness, tremors and loss of appetite. Discontinue use if symptoms worsen or do not lessen in an hour. Keep out of children's reach.