(Player's Handbook v.3.5, p. 280)

Level: Bard 3, Sorcerer 3, Wizard 3, Vigilante 3, Beguiler 3, Sha'ir 3, Death Master 3, Jester 3, Sloth 4,
Components: V, S, M,
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature/level, no two of which can be more than 30 ft. apart
Duration: 1 round/level
Saving Throw: Will negates
Spell Resistance: Yes

An affected creature moves and attacks at a drastically slowed rate.
A slowed creature can take only a single move action or standard action each turn, but not both (nor may it take full-round actions).
Additionally, it takes a -1 penalty on attack rolls, AC, and Reflex saves.
A slowed creature moves at half its normal speed (round down to the next 5-foot increment), which affects the creature's jumping distance as normal for decreased speed.
Multiple slow effects don't stack.
Slow counters and dispels haste.
Material Component: A drop of molasses.