Remove the Instrument of Death

Remove the instrument of death causes a weapon-wielding target to drop the weapon immediately. (A successful saving throw indicates that the spell had no effect.) Unless aware of the caster, targets probably will think they dropped the weapon due to their own clumsiness. They must spend a full round of activity to re-arm themselves, unless they dropped their weapons into a pit, over a cliff, etc. After every five experience levels of the caster, that wizard can choose one more target. Thus, a 6th-level wizard can attempt to disarm two opponents, while an 11th-level caster can affect three.

This spell applies specifically to weapons or objects being used as weapons. It will not make targets drop other items.