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4-Fluoroephedrine, also known as 4-fluoro-β-hydroxy-N-methylamphetamine, is a substituted phenethylamine, amphetamine, and β-hydroxyamphetamine derivative. [6] [1] It is the 4-fluoro analogue of ephedrine. [6] [1] The synthesis of 4-fluoroephedrine has been described. [7] It can serve as a precursor in the synthesis of 4-fluoromethamphetamine ...
In 1997, the FDA proposed a regulation on ephedra (the herb from which ephedrine is obtained), which limited an ephedra dose to 8 mg (of active ephedrine) with no more than 24 mg per day. [78] This proposed rule was withdrawn, in part, in 2000 because of "concerns regarding the agency's basis for proposing a certain dietary ingredient level and ...
In January 2002, Health Canada issued a voluntary recall of all ephedrine products containing more than 8 mg per dose, all combinations of ephedrine with other stimulants such as caffeine, and all ephedrine products marketed for weight-loss or bodybuilding indications, citing a serious risk to health.
Different ATS also have different toxic dose. Methamphetamine fatality from ATS have been reported after ingestion of a minimal dose of 1.3 mg/kg, while the estimated minimum lethal dose in a non-addicted adult is 200 mg. [14] [26] Generally, children are more likely to develop toxicity and have lower chances of developing tolerance. [14]
4-Fluoroamphetamine is a releasing agent and reuptake inhibitor of dopamine, serotonin, and norepinephrine. [9] The respective EC 50 values are 2.0 x 10 −7 M, 7.3 x 10 −7 M, and 0.37 x 10 −7 M, while the IC 50 values are 7.7 x 10 −7 M, 68 x 10 −7 M, and 4.2 x 10 −7 M. [3]
[16] [17] [18] Combinations of theophylline, ephedrine, and a barbiturate were later phased out in favor of combinations of theophylline and ephedrine alone (e.g., brand name Franol). [ 2 ] [ 1 ] Fixed-dose combinations of theophylline and ephedrine were abandoned after the 1970s as they did not allow for dose titration in asthma therapy owing ...
Racephedrine, also known as racemic ephedrine and sold under the brand names Efetonina and Ephoxamine among others, is the racemic form of ephedrine which has been used as a bronchodilator to treat asthma.
4-Fluoromethylphenidate was studied further along with other analogues of (±)-threo-methylphenidate (TMP) to assess their potential as anti-cocaine medications. 4F-MPH was reported as having an ED 50 mg/kg of 0.26 (0.18–0.36), regarding its efficacy as a substitute for cocaine, and a relative potency of 3.33 compared to methylphenidate for ...