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Related to laetrile: Vitamin B17


 (lā′ĭ-trĭl′, -trəl)
A substance derived from amygdalin that has been promoted by some individuals as a treatment for cancer, although scientific studies have found no evidence of its effectiveness.

[lae(vorotatory) (variant of levorotatory) + (ni)trile.]


(Pharmacology) an extract of peach stones, containing amygdalin, sold as a cure for cancer but judged useless and possibly dangerous by medical scientists
[C20: from laevorotatory + nitrile]


(ˈleɪ ɪ trɪl)

a controversial drug prepared chiefly from apricot pits and purported to cure cancer.
[1950–55; lae(voratatory) + (ni)trile]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.laetrile - a substance derived from amygdalin; publicized as an antineoplastic drug although there is no supporting evidence
amygdalin - a bitter cyanogenic glucoside extracted from the seeds of apricots and plums and bitter almonds
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References in periodicals archive ?
The question of amygdalin's effectiveness was the subject of the film Second Opinion, which detailed the cover-up of positive data on laetrile at Sloan-Kettering Institute, New York, which led to my firing in 1977 (Merola 2014).
Three weeks of intense therapy followed by an intense home therapy using the porta-cath as an injection site for laetrile didn't work.
The FDA vigorously opposed making laetrile available in the United States, even to terminally ill cancer patients, because "there were no adequate well-controlled scientific studies of laetrile's safety or effectiveness.
Those of us who were around during the 1970s may recall the controversy over the cancer treatment laetrile.
The question of whether the FDA should make an exception for drugs given to individuals who are terminally ill was, of course, widely debated in the 1970s during the laetrile craze.
The Laetrile Clinical Trial Revisited: What Was Actually Tested?
because its owner, Maureen Long, was using laetrile (amygdalin) in the treatment of cancer patients.
Laetrile, the Horsey treatment, and the Gerson diet were advocated, especially at clinics in Tijuana, Mexico, for cancer treatment.
It is amazing that although the scientific community rejected the claim that laetrile (the cyanogenic glycoside, amygdalin) is a vitamin, a broad section of the public still accepts it as "vitamin B17.
Attending seminars in alternative, nutritional, and naturopathic medicine, I was introduced to homeopathy, herbal medicine, and nutrition, as well as "unproved" medicine such as laetrile and cancer cures.
Bradford's group succeeded in decriminalizing laetrile and legally supported alternative cancer treatments.