This plant has been used as an anti-rheumatic, carminative and stomachic. The oil extracted from the seed has historically been used in medicines for tonsillitis, sore throats, coughs, colds, constipation, gravel and stones due to its lubricating and emollient properties, and was mixed with lime water to treat scalds and burns. A poultice of the fresh leaves was used to treat eye problems, bruises and swellings, and a tincture used to treat diarrhoea. The fresh herb was boiled and taken as a tea for rheumatic pains, heartburn, colds, coughs and dropsy, and infusion of the roots was used as an eyewash.

The oil extracted from the seed has been used similarly to the linseed oil (Linum usitatissimum), for example for lighting, in paints and varnishes. An infusion of the whole plant is said to be beneficial for the skin and to prevent hair loss. A fibre can be obtained from the stems and used to make string, cloth, nets, paper and baskets.

The raw seed contains cyanide and should not be eaten raw.