Search results
Results from the WOW.Com Content Network
Illicit methamphetamine is more commonly made by the reduction of ephedrine or pseudoephedrine, which produces the more active d-methamphetamine isomer. The maximum conversion rate for ephedrine and pseudoephedrine is 92%, although typically, illicit methamphetamine laboratories convert at a rate of 50% to 75%. [104]
Pseudoephedrine is excreted through urine, and the concentration in urine of this drug shows a large inter-individual spread; that is, the same dose can give a vast difference in urine concentration for different individuals. [123] Pseudoephedrine is approved to be taken up to 240 mg per day.
Ephedrine, pseudoephedrine, and phenylpropanolamine are precursor chemicals used in the illicit manufacture of methamphetamine or amphetamine. They are also common ingredients used to make cough, cold, and allergy products. It was argued that the CMEA would curtail the clandestine production of methamphetamine.
Ephedrine is the precursor of synthetic amphetamines. The diastereomer of ephedrine, pseudoephedrine is found in Ephedra sinica together along with ephedrine. Ephedrine and pseudoephedrine are both generally used for weight reduction and performance enhancement. They can also be reduced to methamphetamine. [2]
Government changed policy of sale of legal drugs, which contain substances needed for meth production - the buyer must have a medical prescription, must identify themself by ID card and can obtain only a small quantity. Due to this Czech meth producers are buying drugs with Pseudoephedrine in Poland, where there are no such restrictions. [8]
Changes to federal regulations in 1988 and throughout the 1990s enabled the DEA to more closely track the ephedrine and pseudoephedrine precursors. [8] Many individual States have enacted precursor control laws which limit the sale of over-the-counter cold medications which contain ephedrine or pseudoephedrine. [ 14 ]
The FDA assembled its outside advisers to take another look at phenylephrine, which became the main drug in over-the-counter decongestants when medicines with an older ingredient ...
She appeared at the 68th session of the United States Conference of Mayors Winter Meeting in Washington, D.C., in 2000 with President Clinton and others to discuss social and law enforcement dangers of the drug nationally, especially in medium-sized and rural communities in order to deal with "the rapidly emerging issue of meth in America ...