- investigate Girtab nomenclature
- There seems to be some confusion regarding this name. Jim Kaler of STARS says Girtab refers to Theta Scorpii. This is also indicated in the sidebar of the Theta Scorpii Wikipedia article. However, Wikipedia also says Girtab refers to Kappa Scorpii.
- Psychoactive drug (Wikipedia)
A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance that changes functions of the nervous system, and results in alterations in perception, mood, cognition, and behavior.