Changes

===Excretion===

===Excretion===

Urinary and faecal excretion are the most notable routes clinically - many substances will require metebolism prior to excretion. Excretion in milk can raise concerns for suckling animals and public health issues.

Urinary and faecal excretion are the most notable routes clinically - many substances will require metabolism prior to excretion. Excretion in milk can raise concerns for suckling animals and public health issues.

Rates of excretion can be increased by:

Rates of excretion can be increased by: