 |
| Browse Plants Articles |
 |
| Bamboo Lichen Grass Bulb Perennial Climber Tree Annual/Perennial Biennial/Perennial Annual/Biennial Shrub Annual Climber Fern Corm Climber Perennial Annual Biennial |
| Power Search! |
| Browse Botanic Names |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| Sponsored By KhorWills |
| We would like to thank the team from Khor Wills & Associates for their support & assistance in ensuring this site is free for all.  Digital Forensic and IT Risk Experts |
Lactuca sativa Cultivation | Propagation | General Uses Medicinal Information: The whole plant is rich in a milky sap that flows freely from any wounds. This hardens and dries when in contact with the air[4]. The sap contains 'lactucarium', which is used in medicine for its anodyne, antispasmodic, digestive, diuretic, hypnotic, narcotic and sedative properties[9, 21, 46, 165, 192, 213, 238]. Lactucarium has the effects of a feeble opium, but without its tendency to cause digestive upsets[4], nor is it addictive[7]. It is taken internally in the treatment of insomnia, anxiety, neuroses, hyperactivity in children, dry coughs, whooping cough, rheumatic pain etc[238]. Concentrations of lactucarium are low in young plants and most concentrated when the plant comes into flower[238]. It is collected commercially by cutting the heads of the plants and scraping the juice into china vessels several times a day until the plant is exhausted[4]. The cultivated lettuce does not contain as much lactucarium as the wild species, most being produced when the plant is in flower[4]. An infusion of the fresh or dried flowering plant can also be used[9]. The plant should be used with caution, and never without the supervision of a skilled practitioner. Even normal doses can cause drowsiness whilst excess causes restlessness[238] and overdoses can cause death through cardiac paralysis[7, 9]. Some physicians believe that any effects of this medicine are caused by the mind of the patient rather than by the medicine[213]. The sap has also been applied externally in the treatment of warts[222]. The seed is anodyne and galactogogue[218]. Lettuce has acquired a folk reputation as an anaphrodisiac, anodyne, carminative, diuretic, emollient, febrifuge, hypoglycaemic, hypnotic, narcotic, parasiticide and sedative[218]. For further Lactuca sativa gardening information |
