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  2. Lisdexamfetamine - Wikipedia

    en.wikipedia.org/wiki/Lisdexamfetamine

    Lisdexamfetamine is a substituted amphetamine with an amide linkage formed by the condensation of dextroamphetamine with the carboxylate group of the essential amino acid L -lysine. [ 19 ] The reaction occurs with retention of stereochemistry, so the product lisdexamfetamine exists as a single stereoisomer.

  3. Lysine - Wikipedia

    en.wikipedia.org/wiki/Lysine

    Lysine (symbol Lys or K) [2] is an α-amino acid that is a precursor to many proteins.It contains an α-amino group (which is in the protonated −NH + 3 form when dissolved in water), an α-carboxylic acid group (which is in the deprotonated −COO − form when dissolved in water), and a side chain lysyl ((CH 2) 4 NH 2), classifying it as a basic, charged (at physiological pH), aliphatic ...

  4. Dietary Reference Intake - Wikipedia

    en.wikipedia.org/wiki/Dietary_Reference_Intake

    The Dietary Reference Intake (DRI) is a system of nutrition recommendations from the National Academy of Medicine (NAM) [ a ] of the National Academies (United States). [ 1 ] It was introduced in 1997 in order to broaden the existing guidelines known as Recommended Dietary Allowances (RDA s, see below). The DRI values differ from those used in ...

  5. Dextroamphetamine - Wikipedia

    en.wikipedia.org/wiki/Dextroamphetamine

    When urine pH is abnormal, the urinary recovery of amphetamine may range from a low of 1% to a high of 75%, depending mostly upon whether urine is too basic or acidic, respectively. [20] Following oral administration, amphetamine appears in urine within 3 hours. [22] Roughly 90% of ingested amphetamine is eliminated 3 days after the last oral dose.

  6. Vitamin C - Wikipedia

    en.wikipedia.org/wiki/Vitamin_C

    As noted, government recommendations are a range of 40 to 110 mg/day and normal plasma is approximately 50 μmol/L, so "normal" is about 25% of what can be achieved when oral consumption is in the proposed megadose range. Pauling popularized the concept of high dose vitamin C as prevention and treatment of the common cold in 1970.

  7. Essential amino acid - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acid

    An essential amino acid, or indispensable amino acid, is an amino acid that cannot be synthesized from scratch by the organism fast enough to supply its demand, and must therefore come from the diet. Of the 21 amino acids common to all life forms, the nine amino acids humans cannot synthesize are valine, isoleucine, leucine, methionine ...

  8. Arginine - Wikipedia

    en.wikipedia.org/wiki/Arginine

    Arginine is the amino acid with the formula (H 2 N)(HN)CN(H)(CH 2) 3 CH(NH 2)CO 2 H. The molecule features a guanidino group appended to a standard amino acid framework. At physiological pH, the carboxylic acid is deprotonated (−CO 2 −) and both the amino and guanidino groups are protonated, resulting in a cation.

  9. Vitamin B6 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B6

    The RDA for pregnancy is 1.4 mg/day, for lactation is 1.5 mg/day. For children ages 1–17 years the RDA increases with age from 0.5 to 1.5 mg/day. The adult UL was set at 40–45 mg/day for women and 50–60 mg/day for men, with the lower values in those ranges for adults over 70 years of age. [25]

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