Effect may refer to: * A result or change of something ** List of effects ** Cause and effect, an idiom describing causality

Pharmacy and pharmacology

* Drug effect, a change resulting from the administration of a drug ** Therapeutic effect, a beneficial change in medical condition, often caused by a drug ** Adverse effect or side effect, an unwanted change in medical condition caused by a drug

In media

* Special effect, an artificial illusion ** Sound effect, an artificially created or enhanced sound ** Visual effects, artificially created or enhanced images *Audio signal processing ** Effects unit, a device used to manipulate electronic sound *** Effects pedal, a small device attached to an instrument to modify its sound

Other uses

* Effects, one's personal property or belongings * Effects (G.I. Joe), a fictional character in the G.I. Joe universe * Effects (film), ''Effects'' (film), a 2005 film * Effect size, a measure of the strength of a relationship between two variables * Effect system, formal system which describes the computational effects of computer programs * Pro-Design Effect, an Austrian paraglider design

Pharmacy and pharmacology

In media

Other uses

See also