Latin Name:

Family:

St. John's Wort is one of the most popular herbal remedies for depression. A tea prepared from the leaves and flowering tops of hypericum perforatum L. is widely used in Europe today for its anti depressive effects. It is also used to relieve anxiety and in the treatment of sleep disturbances. It is the most popular non- prescription drug for treating mild to moderate depression.

Other possible benefits of St. John's Wort are relief from menstrual cramps, promotion of wound healing and the fighting off of certain viral infections.

	Depression and other emotional illnesses
	Anxiety
	Kidney disorder
	Wound and burn healing (Externally)
	Anti bacterial
	Anti viral - AIDS
	Bed wetting and childhood night terrors
	Gastritis, gastric ulcers and inflammatory bowel disease
	Menstrual cramps
	Diuretic
	Myalgia and neuralgia (Externally)
	For PMS(premenstrual syndrome)

Although, to date, there have been no reports of any serious problems in humans, this herb can be poisonous to cattle. However, prolonged and high dose (1800 mg. per day) consumption of hypericum may render the skin photosensitive especially in individuals who are already sensitive to sunlight. Therefore persons taking St. John's Wort should avoid excessive exposure to sunlight, tanning lights or UV sources.

Also anyone on any prescribed psycho-active medication should consult with their physician before combining it with St. John's Wort. (See Caution). Topically, St. John’s wort oil is a skin irritant.

Adverse Side Effects:
 Photosensitivity causing dermatitis and inflammation of mucus membranes.

Drug Interactions:
Because of its MAO inhibition type of activity, it may potentiate the effects of other MAO inhibitors. However, the MAO 1 activity in St. John's Wort, in usual doses, is not enough to cause interaction with tyramine containing foods like red wine and cheese.

	Selective serotonin reuptake inhibitors (SSRI's)
	Tricyclic antidepressants
	Amphetamine
	Mono amine oxidase inhibitors (MAOIs)s
	Dopamine agonist such as bromocriptine.

Therefore patients who combine these and other similar products should be advised to contact their physician if they develop any of the symptoms of "Serotonin Syndrome".

	Confusion
	Agitation
	Shivering
	Fever
	Diaphoresis (profuse sweating)
	Diarrhea
	Nausea
	Myoclonus (muscle spasms or twitching)
	Hyperreflexia
	Tremor

How Supplied:

For internal use:
Capsules, fluid extract, tincture 

For external use:
oil, ointment.

Dosage:

St. John's Wort comprises of a number of active ingredients, namely dianthrone derivatives (hypericin and pseudohypericin) flavonoids and tannins (hyperoside, quercitin, rutin, catechin), xanthrones, monoterpenes and sesquisterpenes and phytosterols (beta-sitosterol)

Hypericin and xanthones and flavonoids have been shown to have mono-amine oxidase( MAO) inhibiting property. In depression, MAO inhibitors are used to reduce the breakdown of neurotransmitters such as norepinephrine and serotonin and thereby increasing their concentration in the central nervous system.

Recent clinical trials using standardized hypericin extract showed improvement in symptoms of depression including anxiety, insomnia, depression and feelings of worthlessness.

Most recent research at two of the world's leading medical institutions, New York University and the Weizman Institute of Science in Israel ,found that 2 of the main constituents of St. John's Wort namely hypercin and pseudohypericin were found to inhibit the growth of retroviruses( including HIV, the AIDS virus) in animals.

Although the results of these studies are promising, more work needs to be done.

The mechanism is thought to involve the production of oxygen free radicals which can damage the viral envelope. Therefore, non- enveloped viruses , e.g. Adeno virus or poliovirus are not affected by hypericin.

At present, human studies involving high doses of synthetic form of hypericin (10mg) are being tested on HIV infected patients.

In addition to its anti depressant and anti-viral properties, St. John's Wort has significant wound healing properties. St. John's Wort increases the rate of healing in second and third degree burns. The product used is sometimes known as "red oil". It is named after the red color formed when the fresh flowers are extracted in olive oil. Increased epithelialization of wounds also occurs when St. John's Wort is taken orally as an 1:10 tincture. It is likely that some of the wound healing activity of St. John's Wort may come from anti bacterial activity. Additionally, the flavonoids are tannins and they exert their wound healing effects through their astringent and protein precipitating actions

Active Ingredients:

Enhancing Agents:

Hypericum perforatium is an aromatic perennial herb and belongs to the family hypericaceae. It is native to Europe, but is found worldwide. It has golden yellow flowers - flowering between June and September. The flowers have the brightest appearance on June 24^th , birthday of John the Baptist.

St.John’s wort is a natural source of food flavoring in Europe . It is also used in pastilles and lozenges and in alcoholic beverages. Active ingredients are extracted from the leaves and the flowering tops.

Processing involves harvesting of the aerial parts of St. John's Wort, drying away from sunlight and extraction by water and ethanol.