Traditional Uses

• Respiratory complaints
• Acute or chronic bronchitis
• Whooping cough
• Sore throats

Mode of Action

• Volatile oil has expectorant and vasodilating properties (opens blood vessels)
• Contains marrubiin which stimulates the secretions of mucous membranes in the bronchia of the lungs
• Contains marrubinic acid which stimulates bile production by the liver (cholerectic)

Drug Interactions

• No known drug interactions

Cautions

• Avoid during pregnancy and breast feeding
• Large doses have a laxative effect

Recommended Dose

• 30-180 mg once a day. (Dose may vary from brand to brand)

References

• Blumenthal, 1998; Lust, 1974; Newall, 1996; Tyler, 1993; Tyler, 1994; Weiss, 1988