Complex sentence: Some religions are based completely on the use of certain drugs, such as Entheogens, which are mostly hallucinogens, being either psychedelics or deliriants, but some are also stimulants and sedatives.
Split into simpler sentences: Some religions are based completely on the use of certain drugs. Entheogens are mostly hallucinogens, being either psychedelics or deliriants, but some are also stimulants and sedatives.