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A wide variety of alkaloid and non-alkaloid compounds have been identified in various species of Ephedra.Of the six ephedrine-type ingredients found in ephedra (at concentrations of 0.02-3.4%), the most common are ephedrine and pseudoephedrine, [13] which are the sources of its stimulant and thermogenic effects. [4]
The Ephedra alkaloids, ephedrine and pseudoephedrine – constituents of E. sinica and other members of the genus – have sympathomimetic and decongestant qualities, [22] and have been used as dietary supplements, mainly for weight loss. [23] The drug ephedrine is used to prevent low blood pressure during spinal anesthesia. [22]
Near the end of the study, Health Canada issued a warning on their website stating that those who are under the age of 12, or who have heart disease and may have strokes, should avoid taking pseudoephedrine and ephedrine. Also, they warned that everyone should avoid taking ephedrine or pseudoephedrine with other stimulants like caffeine. They ...
Ephedrine works by inducing the release of norepinephrine and hence indirectly activating the α-and β-adrenergic receptors. [11] Chemically, ephedrine is a substituted amphetamine and is the (1R,2S)-enantiomer of β-hydroxy-N-methylamphetamine. [14] Ephedrine was first isolated in 1885 and came into commercial use in 1926.
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]
As of June 28, 2024 all provinces and territories require single-ingredient ephedrine and pseudoephedrine products in retail settings to be sold behind the counter in pharmacies, and by pharmacists (or, in some cases, also by individuals working under the supervision of a pharmacist, such as pharmacy technicians), to prevent their misuse and ...
Ephedrine. Ephedrine, a stereoisomer of pseudoephedrine, acts as a direct and indirect sympathomimetic amine. Its indirect mechanism makes it more unique than other sympathomimetic agents, for example, pseudoephedrine and phenylephrine. [9] It directly binds to both alpha and beta receptors.
Tyrosine or phenylalanine → dioxyphenilalanine → dopamine → adrenaline and mescaline tyrosine → tyramine phenylalanine → 1-phenylpropane-1,2-dione → cathinone → ephedrine and pseudoephedrine [21] [52] [142] Tyramine, ephedrine, pseudoephedrine, mescaline, cathinone, catecholamines (adrenaline, noradrenaline, dopamine) [21] [143]