More factors can affect bioavailability when absorption is slow or incomplete than when it is rapid and complete, so slow or incomplete absorption often leads to variable therapeutic responses.

• 与吸收慢和不完全的药物相比，吸收迅速而完全的药物的生物利用度影响因素更多。因此，吸收缓慢或不完全常常导致治疗学效应的不同。