Melanocyte-stimulating hormone is a collective name for a group of peptide hormones produced by the skin, pituitary gland and hypothalamus in response to ultraviolet (UV) radiation. It plays a key role in producing coloured pigmentation found in the skin, hair and eyes.n Addisonâs disease, the adrenal glands do not produce enough hormones (including cortisol). This leads to a positive feedback loop where the hypothalamus stimulates the pituitary gland to release more adrenocorticotropic hormone to try and stimulate the adrenal glands to produce more cortisol.
Mescaline is a natural hallucinogenic substance that comes from a small spineless cactus called the Peyote, or Lophophora williamsi; the San Pedro Cactus, or Echinopsis pachanoi; and the Peruvian Torch cactus, or the Echinopsis peruviana.
Meclizine (mek' li zeen) is a first generation antihistamine that belongs to the piperazine class of these agents (with cyclizine and hydroxyzine) which are used largely for their antiemetic and sedative effects. Meclizine is used mostly for the treatment of vertigo and symptoms of nausea, vomiting and dizziness associated with motion sickness.