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D-Phenylalanine (DPA, D-Phe), sold under the brand names Deprenon, Sabiben, and Sabiden, is an enantiomer of phenylalanine which is described as an antidepressant and is marketed as a prescription drug for medical use in Argentina. [1] [2] The medication has been marketed since at least the 1970s [3] and continued to be available by the 2000s. [1]
Phenylalanine is a precursor for tyrosine, the monoamine neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline), and the biological pigment melanin. It is encoded by the messenger RNA codons UUU and UUC. Phenylalanine is found naturally in the milk of mammals.
Smart drink ingredients often include substances such as DL-phenylalanine or L-phenylalanine, L-tyrosine, choline (trimethylaminoethanol), pyroglutamic acid, B vitamins, glucuronolactone, and DMAE (dimethylaminoethanol). These amino acids were claimed to have positive or enhanced effects on alertness, stress resistance and energy levels.
In one study of men aged 65 years and over, those with lower testosterone levels experienced reduced sleep efficiency, woke up more in the middle of the night, and had less time in slow-wave sleep ...
The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.
A lot of people have a person come over to do it or go to med spas, which are less regulated,” Kahn adds. If you experience negative side effects after taking NAD supplements, stop use and ...
Through manipulation of rodent diets, Rose was able to show that ten amino acids are essential for rats: lysine, tryptophan, histidine, phenylalanine, leucine, isoleucine, methionine, valine, and arginine, in addition to threonine. Rose's later work showed that eight amino acids are essential for adult human beings, with histidine also being ...
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