Description
Hypericum Mother Tincture, (St. John’s Wort) helps relieve mild to
moderate depression. It can also be used for the ‘winter blues.’ It is
safer, cheaper and just as effective as conventional anti-depressants,
and is available over the counter. Clinical trials
Hypericum perforatum (St.
John’s Wort) has a genuine anti-depressant medicinal action, and
reduces anxiety. Its action is gentle yet very effective, with none of
the usual anti-depressant side effects such as anxiety, weight loss,
sleeplessness and loss of sexual desire.
It is predicted to
replace conventional mild to moderate anti-depressants, and is the
leading treatment for depression in Germany, where its sales outnumber
Prozac 20 to one. In 1994, 66 million daily doses of Hypericum were
prescribed there for use in the treatment of depression.*
WELEDA
has manufactured Hypericum for depression for over 60 years. Weleda
Hypericum (herba) Mother Tincture (St. John’s Wort) is the only
Hypericum extract registered with the Ministry of Health for depression.
It
is best suited for treating chronic mild to moderate depression. We
recommend that acute depression e.g. post-natal depression be treated
by a practitioner.
Hypericum is one of the best-tested herbs in
the world according to the standards of modern clinical trials.
Thirteen trials were conducted in 1993 alone. Research including
placebo control double-blind human trials has shown that it works as
well as Prozac and tricyclic antidepressants such as imipramine for
mild to moderate depression. It has also held up in clinical trials
against diazepam, desipramine, amitriptyline, bromazepam and
maprotiline.
Side effects are practically non-existent in the
literature. Hypericum may cause photosensitivity in some individuals
though this is not usually a problem at normal therapeutic doses.
The
respected Journal of Geriatric Psychiatry and Neurology published a
whole issue - 17 research papers - on Hypericum’s use as an anti
depressant in 1994. One of these studies showed that 80% of the 3250
patients with mild to moderate depression in the sample felt either
better or completely free of symptoms after a month. (Further trial
details were published in the New Zealand Medical Journal 28/02/97,
reprinted from the British Medical Journal.)**
The active constituents
Until
recently, Hypericum’s active constituents were thought to be hypericin
and pseudohypericin. (Hypericin’s action is similar to
haematoporphyrin, a synthetic product of haemoglobin with
antidepressant properties. It is readily absorbed into the digestive
tract and also crosses the blood brain barrier. )
However, it is
now known that rutin, quercitin and chlorogenic acid are also central
to its action. This means that other brand’s products that merely
isolate the constituent hypericin have limited action, as they do not
contain all the active ingredients.
For example, previously the
sedative action was thought to be due to the hypericin, but recent
studies credit the flavanoids. Levels of Hypericin are highest in the
flowers and levels of flavanoids are highest in the leaves when the
flowers are in full bloom, which makes a whole plant extract important.
It
is also possible that the antidepressant action is due to other
mechanisms. These include: the effect of light known to be associated
with Hypericum use (photosensitivity), and also identified as a factor
in seasonal depression.
Another clinical trial compared the
effect of Hypericum extract with that of the benzodiazepine, diazepam,
in the treatment of anxiety and Hypericum was found to be more
effective.***