Coleus (Coleus forskohlii)
Overview
Analgesic (Anodyne) & Antiseptic: Eugenol content helps relieve pain (e.g., toothaches) and kill bacteria. Aromatic & Carminative: Eases digestive discomfort such as gas, bloating, and colic. Counterirritant & Stimulant: Improves local blood flow, especially when used in liniments, and can gently energize the mind/body. Vermifuge: Traditionally used to expel intestinal parasites.
Traditional uses & properties
Heart & Circulatory Tonic: May aid congestive heart failure, poor coronary blood flow, and lower high blood pressure. Antispasmodic & Bronchodilator: Relaxes smooth muscle, helpful in asthma, bronchitis, and other respiratory complaints. Digestive Remedy: Traditionally taken for gas and bloating. Potential Thyroid Support: Stimulates thyroid hormone release, possibly improving metabolism.
Safety & precautions
Circulatory & Glaucoma: Do not self-treat serious conditions like heart failure or elevated eye pressure without professional oversight. General Use: While the single compound forskolin is well-studied, the whole herb has not undergone extensive research; use with caution.
Habitat
Native to the plains and lower Himalayan slopes of India, coleus also grows in other subtropical or warm-temperate regions (e.g., Nepal, Sri Lanka, Myanmar, parts of Africa). Now cultivated commercially, especially in Gujarat, it prefers well-drained soil in sun or partial shade. Harvest takes place in autumn, collecting both root and leaves.