Copyright is a form of protection provided by the laws of the United States. (title 17, U. S. Code ) to the authors of âoriginal works of authorship,â including. literary, dramatic, musical, artistic, and certain other intellectual works. This. protection is available to both published and unpublished works.
The peak levels and half life of Ritalin depend on the formulation. But with the immediate release version of Ritalin, methylphenidate reaches peak levels in the blood in about 2 hours. And methylphenidate from Ritalin tablets is eliminated from plasma with an average half-life of about 3.5 hours. As a comparison, in children the average half-life of methylphenidate is about 2.5 hours, with a range of about 1.5 â 5.0 hours.
Half-life is the time that it takes for 1/2 of the drug to be gone from the body. For example if 2 hours is the 1/2 life, in 2 hours there will be 1/2 of the drug left, in another 2 hours 1/4 left, in another 2 hours 1/8 left, in another 2 hours 1/16th left, etc. The longer the half life of a drug, the longer it can be detected in the body.