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WEDNESDAY, Aug. 19 (HealthDay News) -- Giving codeine to children after a tonsillectomy may be deadly, a new report warns.
The report, in the Aug. 19 issue of the New England Journal of Medicine, follows the death of an otherwise healthy 2-year-old boy who was prescribed codeine to relieve pain from having his tonsils removed.
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The child, who had a history of snoring and sleep apnea, or repeated pauses in breathing throughout the night, had the surgery in an outpatient clinic and was sent home, the researchers explained.
Doctors prescribed codeine syrup and told the boy's mother to give it to him for pain, but two nights later, the child developed a fever and wheezing. He was found dead the next morning, according to the report.
Toxicology tests showed that the mother had given the child the proper dosage, but the coroner found that the child had high levels of morphine in his system. Further investigation determined that the child had an ultra-rapid metabolism genotype, which causes the body to metabolize codeine at a faster rate than the norm.
Codeine, a narcotic used to treat mild to moderate pain, is metabolized by the body to morphine. In children with the ultra-rapid genotype, morphine can build to deadly concentrations.
"The sudden death of a healthy child was quite sobering because tonsillectomies are done every day, all over North America," Dr. Gideon Koren, a pediatrics professor at the University of Western Ontario and University of Toronto, said in a university news release. "And more and more of them are done on an outpatient basis, with the child going home the same day." Koren wrote the report after investigating the child's death.
Last year, another study found that mothers given codeine for pain after giving birth can pass deadly levels of morphine to their babies though their breast milk if they carry this ultra-rapid genotype, according to background information in the news release. Morphine levels can build up rapidly in the breast milk of these women.
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-- Jennifer Thomas
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