A hormone secreted by the anterior lobe of the pituitary gland: The adrenocorticotrophic hormone encourages the growth of the adrenal gland and is applied as a medical treatment for rheumatoid arthritis, skin ailments and other disorders.

A pituitary hormone that prevents excessive fluid loss: An antidiuretic hormone is part of the system maintaining a correct salt and water balance in vertebrates which includes any animal, as well as humans, with a segmented spinal column and a well-developed brain, for example a mammal, a bird, a reptile, an amphibian, or a fish.