Native to Europe, St. John's wort is now found growing in dry areas such as the edges of fields and along roadsides in many temperate climates throughout the world.
It's a shrub-like weed that spreads rapidly and invades cultivated land unless controlled.
St. John's wort blooms from late May through September, depending on the climate.
It was believed to bloom on the birth day of St. John the Baptist, June 24, hence the name St. John's wort.
Best known for use as a mild antidepressant, St. John's wort is also being studied for its possible affects on other mood disorders such as anxiety and obsessive-compulsive disorder.
St. John's wort herbal supplements are among the leading medicines used in Germany to relieve the symptoms of mild to moderate depression.
People taking this herb show an improvement in mood and ability to carry out their daily lives.
Symptoms including sadness, hopelessness, worthlessness, exhaustion, and poor sleep also may decrease with the usage of St. John's wort.
Used topically, it may have antiviral and antibacterial effects.
The major active ingredients in StJohns-Wort include hypericin and other dianthrones, flavonoids, xanthones, and hyperforin.
For many years researchers believed the antidepressant properties of St. John's wort were a result of its hypericin contnet and the inhibition of the enzyme monoamine oxidase, however, more recent research suggests that its antidepressant actions may be a result of other active constituents, such as hyperforin, and flavonoids.
Clinical studies suggest that St. John's wort extracts may exert their antidepressant actions by inhibiting the reuptake of the neurotransmitters serotonin, norepinephrine, and dopamine.
This action may be due to hyperforin.
St. John's wort's may work as an antidepressant, by making more of hyperforin (a neurotransmitter) available to the brain.
Dosage & Administration
A common recommendation for St. John's wort extract when taken in connection with mild to moderate depression is 500-1,000 mg per day.
Results may be noted as early as two weeks but may take longer.
You should consult with a health care professional to determine how long to use StJohns-Wort.
For more severe depression, higher intakes may be required, under the supervision of a physician.
We always recommend consulting with a doctor before starting any supplement.
There may be a number drug interactions with St. John's wort that are not yet known.
St. John's wort stimulates a drug-metabolizing enzyme that metabolizes at least 50 of the drugs on the market.
Based on this fact alone, St. John's wort could possibly interfere with a number of medications.
So please, consult with a qualified medical professional before supplementing with St. John's wort, or an other herb(s) for that matter.Tweet
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