Dược Động Học :
▧ Absorption :
A study conducted in 2000 demonstrated that low amounts of triclosan can be absorbed through skin and can enter the bloodstream. [PMID: 10722890] Triclosan is rapidly absorbed and distributed in the human body (Sandborgh-Englund et al., 2006). Maximum concentrations are reached within three hours after oral intake. However, the metabolism and excretion of the compound is fast.
▧ Metabolism :
Triclosan is prone to phase II metabolism via sulfotransferase and glucuronosyltransferase enzymes (Wang et al., 2004). In humans the resulting conjugates are excreted primarily in urine (Sandborgh-Englund et al., 2006).
▧ Route of Elimination :
In one study, after in vivo topical application of a 64.5mM alcoholic solution of [(3)H]triclosan to rat skin, 12% radioactivity was recovered in the faeces, 8% in the carcass 1% in the urine, 30% in the stratum corneum and 26% was rinsed from the skin surface at 24 hours after application. [PMID: 10722890]
▧ Half Life :
The terminal plasma half life of triclosan is 21 h (Sandborgh-Englund et al., 2006).