An oral solid dosage form containing one or several active principle(s) having analgesic properties, the composition of said dosage form being such that it prevents the misuse of said dosage form through the liquid extraction of the active principle(s) contained therein, using commonly available solvents.Said oral solid dosage form containing at least one salt of at least one analgesic active principle, and an anti-misuse system comprising at least one quenching agent, said quenching agent being suitable for inducing complexation of said analgesic active principle salt when the analgesic active principle salt is improperly extracted, notably by a drug abuser, in vitro in solution from said oral solid dosage form.
