During Medieval times, lily of the valley was used by herbalists instead of foxglove.
Lily of the valley affects the heart rate, enabling it to function more regularly and efficiently, reducing excessive irritability of the myocardium without increasing the amount of oxygen required by the heart muscle.
In the treatment of heart ailments, the leaves and flowers have been used for centuries for their cardiac glycosides; convallotoxin, convallatoxol, convalloside, convallatoxoloside, convallarin, glucoconvalloside and convallamarin which has similar effects to digitalis, but the effect is less cumulative making it safer for elderly patients.
It also contains the saponins convallaric acid, asparagine, and flavonoids.
The effect of the whole plant is more gradual in comparison to isolated digitalis glycosides, producing effective results with a smaller dose.
The active cardiac glycosides in the lily of the valley are released consecutively and do not pose a toxic problem to the kidneys, which excrete them easily.
The plant’s flavonoids stimulate the arteries to dilate and simultaneously, the asparagine acts as a diuretic, making it a good herb for high blood pressure.
An ointment made from the plant roots has been used to treat burn d prevent scar tissue.
In aromatherapy, the essential oil of lily of the valley is used to relieve depression, imbue gentleness, happiness, modesty, a sweet disposition and sense of security.
Lily of the valley is associated with the planet Mercury.
During medieval times a poultice of the herb combined with lavender and peppercorns was applied to the forehead and back of the neck as a treatment for brain illnesses such as melancholy, depression, epilepsy, and stroke to restore mental balance.
The herb has been used for weak contractions during childbirth as well as for epileptic seizures, strokes, angina and ensuing paralysis, conjunctivitis, and leprosy.
Lily of the valley has been recommended for strengthening the brain and rejuvenating a weak memory.