Although they all share anticholinergic activity, they are different drugs and have different indications and different treatments. Again, we notice that the details for treating each drug are a little bit different. Quickly absorbed means that you had better treat quickly to prevent absorption. Enterohepatically recirculated-the drug keeps reappearing in the gut. Activated charcoal in the gut may catch some of the drug as it comes through.
Phenothiazines also bind plasma proteins and have high volumes of distribution.
Phenothiazines are radioopaque.