Action of a drug other than that desired for beneficial pharmacological effect.
a secondary effect of a drug which is produced as well as the therapeutic effect. The term is usually used to refer to undesirable or toxic effects.
a toxic effect from the drug which is not wanted
a toxic effect, which is not wanted, from taking the drug
An additional activity of a drug that may produce detrimental or unwanted effects
A predicate that produces a side-effect is one that has any effect on the â€œoutside worldâ€ (the user's terminal, a file, etc.), or that changes the Prolog database.