Forty-two percent of American consumers used alternative remedies in 1997, up from 34 percent in 1990, according to a telephone survey cited in the report. Consumers used these therapies mostly for chronic pain, anxiety, fatigue, and other long-term ailments. Of 23 randomized studies of St. John's wort, depressive patients in every study reportedly improved, apparently assisted by the herb's pharmacological effects on the brain. Mild side effects, including gastrointestinal symptoms, fatigue, and increased sensitivity to sunburn, have been reported. Extracts from the leaves of ginkgo trees are linked with cognitive improvements in memory-impaired patients that rival those brought about by more standard, pharmacological agents.
Side effects are rare, but can be serious.
Reputed to increase blood flow, the herb's anticoagulant properties may be harmful to patients with clotting problems. Psychosomatic Medicine is the official peer-reviewed journal of the American Psychosomatic Society, published bimonthly. For information about the journal, contact Joel E. Dimsdale, MD, at 619 543-5468. All rights reserved.