Search results
Results from the WOW.Com Content Network
The use of graphics on blotter sheets originated as an underground art form in the early 1970s, sometimes to help identify the dosage, maker, or batch of LSD. Images may be of various sizes but sheets are often 7.5-inch (190 mm)-square and perforated into a 30 by 30 grid.
In the lab, phenyl-2-nitropropene is produced by the reaction of benzaldehyde and nitroethane in the presence of a basic catalyst like n-butylamine.The reaction is a nitroaldol reaction, and is a variant of a Knoevenagel condensation reaction, which is one of a broader class of reactions called Henry condensations, or simply Henry reactions.
The oral bioavailability of amphetamine varies with gastrointestinal pH; [20] it is well absorbed from the gut, and bioavailability is typically 90%. [10] Amphetamine is a weak base with a p K a of 9.9; [ 189 ] consequently, when the pH is basic, more of the drug is in its lipid soluble free base form, and more is absorbed through the lipid ...
Levoamphetamine [note 1] is a stimulant medication which is used in the treatment of certain medical conditions. [10] It was previously marketed by itself under the brand name Cydril, but is now available only in combination with dextroamphetamine in varying ratios under brand names like Adderall and Evekeo.
Amphetamine [note 2] (contracted from alpha-methylphenethylamine) is a central nervous system (CNS) stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD), narcolepsy, and obesity; it is also used to treat binge eating disorder in the form of its inactive prodrug lisdexamfetamine.
GNC Holdings, LLC (an initialism of General Nutrition Centers) is an American multinational retail and nutritional manufacturing company based in Pittsburgh, Pennsylvania. [5] [6] It specializes in health and nutrition related products, including vitamins, supplements, minerals, herbs, sports nutrition, diet, and energy products.
Paper may be between 0.07 and 0.18 millimetres (0.0028 and 0.0071 in) thick. [20] Paper is often characterized by weight. In the United States, the weight is the weight of a ream (bundle of 500 sheets) of varying "basic sizes" before the paper is cut into the size it is sold to end customers.
[20] Methylphenidate – a benzylpiperidine derivative that may improve working memory, episodic memory, and inhibitory control, aspects of attention, and planning latency in healthy people. [13] [15] It also may improve task saliency and performance on tedious tasks. [17]