Drug Name Clavamox

Closely related chemically to amphetamine are the so-called appetite suppressants or anorexiants, such as fenfluramine, mazindole, and sibutramine. These may also cause dependence and their therapeutic value and safety are questionable.
However, the ?-adrenoceptor stimulant action is due to the (-)-form (see above). As described for receptor interactions, enantioselectivity may also be manifested in drug interactions with enzymes and transport proteins. Enantiomers may display different affinities and reaction velocities.

 

N-demethyldiazepam (nordazepam) is biologically active and undergoes hydroxylation at position 3 on the diazepine ring. The hydroxylated product (oxazepam) again is pharmacologically active. By virtue of their long half-lives, diazepam (t1/2 ~ 32 h) and, still more so, its metabolite, nordazepam (t1/2 50–90 h), are eliminated slowly and accumulate during repeated intake.
In this manner, a continuous phospholipid barrier arises also inside squamous epithelia, although at an extracellular location, unlike that of intestinal epithelia. A similar barrier principle operates in the multilayered keratinized squamous epithelium of the outer skin.