Native to America, Passion Flower owes its name to the
resemblance of its flower to the Christ’s crown of thorns. It was exported by
the first Spaniards and rapidly spread in regions with warm climates. Passion
Flower was known for its sedative, hypnotic, antispasmodic and « anodynes »
(analgesic) properties. It was traditionally used for neuralgia, convulsions,
tachycardia, insomnia and hysteria.
Actions and pharmacology
Passion Flower’s main chemical components are alkaloids (harmane, harmaline,
harmanine, etc.), flavonoids (vitexine, apigenine, luteoline, quercetine, etc.),
maltol and ethylmaltol, sterols, etc.
Cyanogen molecules (producing cyanide in certain conditions) were presumably
found in Passion Flower. These molecules have only been identified in a few
varieties like Passiflora biflora, P. talamancensis, etc., but
never in Passiflora incarnata.(3)
The flavonoid apigenine links with GABA receptors, which could explain part
of Passion Flower’s tranquilizing effect. The alkaloids harmanes may inhibit
monoamine oxidase, implying possible antidepressant and stimulant effects.
Maltol and ethylmaltol may have sedative and anticonvulsant effects. However,
there are too few of these molecules to validate these effects.(5)
Like that of many other herbs, Passion Flower’s effectiveness on anxiety and
nervousness relies on the synergy of its components.
The German Commission E acknowledges its benefits in cases of: nervous
restlessness.(4)
Scientific studies
A placebo-controlled clinical study on 182 patients evaluated the
effectiveness of a medicinal herb combination containing Passion Flower. The
results indicate a significant effect on anxiety (measured by Hamilton’s anxiety
scale).(6)
In an in vivo study, Passion Flower demonstrated tranquilizing and sedative
effects as well as a potentializing action on sub-therapeutic dosages of
sleeping drugs.(7)
Precautions, contraindications and interactions
Contraindication: known allergy to Passion Flower.
A study mentions a possible uterotonic effect, preventing Passion Flower’s
use during pregnancy.(1) Moreover, its traditional use for
dysmenorrhea adds another doubt as to its safety during pregnancy.(2)
Caution is therefore recommended.
Passion Flower is a mild tranquilizer suitable for children.
Therapeutic combinations
ANXIETY and NERVOUSNESS
Avena Complex, Dormeasan®, St. John’s Wort, Valerian, Passidora,
Urticalcin®
HYPERACTIVITY
Passidora, Urticalcin®, AVenaforce®®
INSOMNIA
Dormeasan®, St. John’s Wort, Valerian, Passidora, AVenaforce®®
MENTAL FATIGUE
Avena Complex, Geriaforce, Siberian Ginseng
DEPRESSION
Hyperiforce®, St. John’s Wort, Avena complex, Siberian Ginseng,
Geriaforce, Passidora
FATIGUE and STRESS
Avena Complex, AVenaforce®®,
Geriaforce, Siberian Ginseng, Kelpasan®, St. John’s Wort, Stinging
Nettle, Urticalcin®
BURNOUT, EXHAUSTION, CHRONIC FATIGUE, NEURASTHENIA
Avena Complex, AVenaforce®®,
St. John’s Wort, Urticalcin®, Siberian Ginseng, Dormeasan®,
Rasayana® DX