Healthnotes Newswire óA study published in the current issue of the British Medical Journal (BMJ) suggests that the herbal product St. Johnís wort (Hypericum perforatum) may be among the most effective and safest initial treatments for mild to moderate depression.1
The German trial, which reportedly is the largest to date using St. Johnís wort, found that people with mild to moderate depression given 500 mg of the herbal extract per day experienced as much symptom relief as those given 150 mg per day of the common antidepressant imipramine (Tofranilģ).
The six-week trial also found that people given St. Johnís wort were much less likely to report side effects than were those given imipramine. The authors conclude that the results of this study and others ďprovide compelling evidence that hypericum (St. Johnís wort) is therapeutically equivalent to other antidepressants.Ē They also add, ďIn view of hypericumís comparable efficacy to other antidepressants and its safety record, hypericum should be considered for first line treatment in mild to moderate depression, especially in the primary care setting.Ē
This study follows on the heels of an earlier trial reported in Healthnotes Newswire on April 20, 2000. Sounding a tone similar to that of the new report, the earlier trial found that a comparable dose of St. Johnís wort extract treated people with mild to moderate depression as effectively as the popular antidepressant Prozacģ.2 Again, side effects were fewer and less severe in the group given St. Johnís wort than in the group given Prozac.
Both of these trials challenge previous assumptions about the dose of St. Johnís wort needed to effectively treat mild depression. Earlier trials comparing St. Johnís wort to even lower doses of imipramine and another standard antidepressant, amitriptyline (Elavilģ), have used daily doses ranging from 900 to 1,050 mg.3 4 The results of these trials suggest that 500 mg of St. Johnís wort per day may be all thatís needed to treat mild depression.
Before deciding to take St. Johnís wort for depression, consumers should consult a doctor. Depression can be a warning sign for an underlying disease such as anemia or low thyroid function. Be sure an antidepressantódrug or herbalóis the proper treatment.
Also, itís important to remember that mixing St. Johnís wort with other medications may be dangerous. Taking St. Johnís wort with prescription antidepressants, including Prozac or Zoloftģ, may lead to confusion, muscle twitching, and sweating.5 Equally important, St. Johnís wort may reduce blood levels of some prescription drugs.6 7 8 9 It is best to avoid the use of St. Johnís wort when taking warfarin, coumadin, theophylline, cyclosporine, indinavir, or even birth control pills.References