November 12, 1989 |
Consumers should stop taking the food supplement L-Tryptophan while authorities investigate at least 30 illnesses that may be associated with the product, the Food and Drug Administration said Saturday. The product, sold over the counter in tablet and capsule form, has been used by some people with sleeping problems or premenstrual syndrome, the FDA said.
May 31, 1990 |
The rare blood disorder linked to the dietary supplement L-tryptophan appears to be caused by impurities found in the supplements, and immune-system weaknesses that make some individuals more susceptible to the illness, federal health officials said Wednesday. The officials said they found chemical contaminants in all of the L-tryptophan samples they studied. Any of the dozens of impurities could have played a role in the illness, they added.
CALIFORNIA | LOCAL
July 10, 1990
A Burbank couple on Monday filed a $30-million lawsuit against a Japanese manufacturer of the dietary supplement L-tryptophan, alleging that impurities in the product severely disabled the woman. Mike and Cecile Gracy filed suit in Burbank Superior Court, claiming that Showa Denko of Tokyo produced impure batches of the supplement in late 1988 and early 1989 that caused Cecile Gracy to develop eosinophilia-myaglia syndrome, a potentially fatal muscle and blood ailment.
July 11, 1990 |
The U.S. Food and Drug Administration said Tuesday that it will not allow L-tryptophan back on the market, despite a call by the Costa Mesa-based National Nutritional Foods Assn. to lift the agency's ban on the food supplement. The FDA's statement in Washington came despite news that a study will be published today in the Journal of the American Medical Assn. indicating that an epidemic of a potentially fatal blood disorder may be linked to only one manufacturer of the food supplement.
March 23, 1990 |
The Food and Drug Administration on Thursday expanded its recall of the dietary supplement L-tryptophan to include even small dosages, declaring that the substance poses a "major public health problem" and can be fatal. The agency cited 1,411 reported cases of the newly recognized condition eosinophilia-myalgia syndrome, or EMS, which has been linked to L-tryptophan. Nineteen deaths have been reported. "EMS can cripple. It can cause great pain.
November 2, 1991 |
The Food and Drug Administration on Friday denied a petition that sought to stop it from approving genetically engineered products. The agency said there is no evidence the products endanger the public. The Foundation on Economic Trends filed the petition in August, 1990, after more than 1,500 people became ill and more than two dozen died after taking L-tryptophan, an amino acid used as a remedy for insomnia, appetite control and depression.