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#11
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"LadyLollipop" wrote in message news:qXXee.61476$WI3.15119@attbi_s71... "Jeff" wrote in message ink.net... this was 3 1/2 years ago. Try more modern news next time. Jeff Pat reply # 43480324885809348790324899348932948932483094834934-3249348903493248-93-24884 FACT is , it was 3 1/2 years ago, and it is STILL being prescribed!!!!!!! Which is a good thing for the kids with ADHD. Because methylphenidate is a safe drug that really helps these kids. Jeff |
#12
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wrote in message ... wow, very frightening and very relevant for anyone taking ritalin. Only if their pet mice get some. Ritalin has never been shown to cause liver cancer in humans. And the dose was 30 x higher than the maximum dose in humans. Jeff |
#13
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On Sat, 07 May 2005 13:13:19 GMT, "Jeff"
typical blind, deaf and very, very, very dumb Quack Flack droolings deleted ... This idiot has made the ignorant claim that no one has ever been harmed by 'silicon' (his error) implants. .. Totally false. There was probably some VERY good reasons he was never awarded an unrestricted medical license ... and lies that he is a 'kidsdoc" ... he NEVER completed a Pediatric residency ... nor had a regular medical license ... instead ... haunts Usenet with Pro Pharma Propaganda ... Ritalin and Liver cancer http://www.preventcancer.com/patient...id/ritalin.htm American Academy of Pediatrics Guidelines for Treating Behavioral Disorders in Children with Ritalin Ignores Evidence of Cancer Risks warns Samuel S. Epstein, M.D. Chicago, 10/04/01. Based on an industry-funded multi-university trial on 282 pre-teen children treated with Ritalin for attention deficit/hyperactivity disorders (ADHD), just published in Pediatrics, the American Academy of Pediatrics has endorsed the use of the drug. However, the Academy ignores clear evidence of the drug's cancer risks of which parents, teachers and school nurses, besides most pediatricians and psychiatrists, still remain uninformed and unaware. Some 40 years after the drug was first marketed by Ciba Geigy, carcinogenicity tests were conducted at the taxpayers expense by the National Toxicology Program, the results of which were published in 1995. Adult mice were fed Ritalin over a two-year period at dosages close to those prescribed to children. The mice developed a statistically significant incidence of liver abnormalities and tumors, including highly aggressive rare cancers known as hepatoblastomas. These findings are particularly disturbing as the tests were conducted on adult, rather than young mice which would be expected to be much more sensitive to carcinogenic effects. The National Toxicology Program concluded that Ritalin is a "possible human carcinogen," and recommended the need for further research. While still insisting that the drug is safe, the Food and Drug Administration admitted that these findings signal "carcinogenic potential," and required a statement to this effect in the drug's package insert. However, these inserts are not seen by parents or nurses. The Physicians' Desk Reference admits evidence on the carcinogenicity of Ritalin, now manufactured by Novartis, qualified by the statement that "the significance of these results is unknown," apparently not recognizing that this is more alarming than reassuring. Apart from cancer risks, there is also suggestive evidence that Ritalin induces genetic damage in blood cells of Ritalin-treated children. Concerns on Ritalin's cancer risk are more acute in view of the millions of children treated annually with the drug and the escalating incidence of childhood cancer, by some 35% over the last few decades, quite apart from delayed risks of cancer in adult life. These risks are compounded by the availability of alternative safe and effective procedures, notably behavior modification and biofeedback. There is no justification for prescribing Ritalin, even by highly qualified pediatricians and psychiatrists, unless parents have been explicitly informed of the drug's cancer risks. Otherwise, prescribing Ritalin constitutes unarguable medical malpractice. CONTACT: Samuel S. Epstein, M.D. Professor emeritus Environmental & Occupational Medicine Chairman, Cancer Prevention Coalition |
#14
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On Sat, 07 May 2005 13:13:19 GMT, "Jeff"
wrote: Ritalin has never been shown to cause liver cancer in humans. And the dose was 30 x higher than the maximum dose in humans. Jeff What a despicable Quack Flack Liar this one is: Adult mice were fed Ritalin over a two-year period at dosages close to those prescribed to children. |
#15
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"Ilena Rose" wrote in message ... On Sat, 07 May 2005 13:13:19 GMT, "Jeff" wrote: Ritalin has never been shown to cause liver cancer in humans. And the dose was 30 x higher than the maximum dose in humans. Jeff What a despicable Quack Flack Liar this one is: Adult mice were fed Ritalin over a two-year period at dosages close to those prescribed to children. I read the actual information, not this quacks interpretation. I don't consider 30x higher to be "dosages close to those prescribed to children." Jeff |
#16
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In article . com,
Pace Sanders wrote: David Wright wrote: Thanks for your comment Jeff but I suspect there are still some out there who are not aware of the carcinogenicity of Ritalin. Like you, for example. I could only find two studies on the subject, both in rats or mice. The conclusion was that there was little evidence of carcinogenicity from methylphenidate,and in some cases it actually seemed to *reduce* the instance of tumors. "a little evidence of carcinogenicity" is enough for me. You can find a *little* evidence that just about anything is carcinogenic. However, initial tests often seem to show things that later turn out not to be true. In any case, this was in mice and rats, which are often poor models for what happens in humans. -- David Wright :: alphabeta at prodigy.net These are my opinions only, but they're almost always correct. "His staff loves to say Bush is a man who doesn't know the meaning of the word 'quit.' Well, apparently he's not all that conversant with the word 'shame' either." (Will Durst) |
#17
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Timmy, I read the entire study, and this article ignores 99% of it. Fer
instance, the article leaves out the lack of epidemiological evidence that the effect is reproduced in humans (there is no proof that it is) and, that the same study also showed that the incidence of certain types of breast tumors actually decreased. Do not rely on journalism for your medical information. Read the original for yourself. This issue has been hashed, rehashed and re-re-hashed in mkh, and mha so that it is very old news. BTW, I wonder why you did not bother to crosspost it to asad, where people who know this study inside and out, hang out? "Tim Campbell" wrote in message oups.com... http://www.preventcancer.com/patient...id/ritalin.htm American Academy of Pediatrics Guidelines for Treating Behavioral Disorders in Children with Ritalin Ignores Evidence of Cancer Risks warns Samuel S. Epstein, M.D. Chicago, 10/04/01. Based on an industry-funded multi-university trial on 282 pre-teen children treated with Ritalin for attention deficit/hyperactivity disorders (ADHD), just published in Pediatrics, the American Academy of Pediatrics has endorsed the use of the drug. However, the Academy ignores clear evidence of the drug's cancer risks of which parents, teachers and school nurses, besides most pediatricians and psychiatrists, still remain uninformed and unaware. Some 40 years after the drug was first marketed by Ciba Geigy, carcinogenicity tests were conducted at the taxpayers expense by the National Toxicology Program, the results of which were published in 1995. Adult mice were fed Ritalin over a two-year period at dosages close to those prescribed to children. The mice developed a statistically significant incidence of liver abnormalities and tumors, including highly aggressive rare cancers known as hepatoblastomas. These findings are particularly disturbing as the tests were conducted on adult, rather than young mice which would be expected to be much more sensitive to carcinogenic effects. The National Toxicology Program concluded that Ritalin is a "possible human carcinogen," and recommended the need for further research. While still insisting that the drug is safe, the Food and Drug Administration admitted that these findings signal "carcinogenic potential," and required a statement to this effect in the drug's package insert. However, these inserts are not seen by parents or nurses. The Physicians' Desk Reference admits evidence on the carcinogenicity of Ritalin, now manufactured by Novartis, qualified by the statement that "the significance of these results is unknown," apparently not recognizing that this is more alarming than reassuring. Apart from cancer risks, there is also suggestive evidence that Ritalin induces genetic damage in blood cells of Ritalin-treated children. Concerns on Ritalin's cancer risk are more acute in view of the millions of children treated annually with the drug and the escalating incidence of childhood cancer, by some 35% over the last few decades, quite apart from delayed risks of cancer in adult life. These risks are compounded by the availability of alternative safe and effective procedures, notably behavior modification and biofeedback. There is no justification for prescribing Ritalin, even by highly qualified pediatricians and psychiatrists, unless parents have been explicitly informed of the drug's cancer risks. Otherwise, prescribing Ritalin constitutes unarguable medical malpractice. CONTACT: Samuel S. Epstein, M.D. Professor emeritus Environmental & Occupational Medicine Chairman, Cancer Prevention Coalition c/o University of Illinois at Chicago School of Public Health, M/C 922 2121 W. Taylor Street Chicago, IL 60612 phone 312-996-2297, fax 312-413-9898 |
#18
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"Tim Campbell" wrote in message ups.com... Jeff wrote: this was 3 1/2 years ago. Try more modern news next time. Jeff Thanks for your comment Jeff but I suspect there are still some out there who are not aware of the carcinogenicity of Ritalin. True. There are those of us who read the actual study and know that there is no carcinogenicity in humans. Just specially bred mice. |
#19
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"LadyLollipop" wrote in message news:w8Yee.61498$WI3.18364@attbi_s71... "David Wright" wrote in message ... In article . com, Tim Campbell wrote: Jeff wrote: this was 3 1/2 years ago. Try more modern news next time. Jeff Thanks for your comment Jeff but I suspect there are still some out there who are not aware of the carcinogenicity of Ritalin. Like you, for example. I could only find two studies on the subject, both in rats or mice. The conclusion was that there was little evidence of carcinogenicity from methylphenidate,and in some cases it actually seemed to *reduce* the instance of tumors. -- David Wright :: alphabeta at prodigy.net These are my opinions only, but they're almost always correct. INCORRECT Actually, very correct. I read both studies that David reference, in their entirety, and what he said is *exactly* correct. http://www.pharma.us.novartis.com/pr...ritalin-sr.pdf On page 4 it points out that the daily dose used in the study was approx. 60 mg/kg/day which is 30 times the MAXIMUM recommended daily dose. Since MPH is rapidly cleared from the system, there is no possibility of a cumulative effect. These are the F A C T S from a website that you posted as authorative and supporting your claim that David is incorrect. Actually they prove you wrong, and prove him wRIGHT. |
#20
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"Pace Sanders" wrote in message ups.com... David Wright wrote: Thanks for your comment Jeff but I suspect there are still some out there who are not aware of the carcinogenicity of Ritalin. Like you, for example. I could only find two studies on the subject, both in rats or mice. The conclusion was that there was little evidence of carcinogenicity from methylphenidate,and in some cases it actually seemed to *reduce* the instance of tumors. "a little evidence of carcinogenicity" is enough for me. find and read the study. |
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