dtgreene: There's no "incapacitated" status in Ultima 3.
The status ailments in Ultima 3 are:
* Poison, which does damage over time. Curing this requires a 35 MP spell, a trip to the healer, or a fountain (like one of the ones in Perenian Depths level 2).
* Death. Curing this requires a 65 MP spell or a trip to the town healer. Furthermore, curing this status ailment can fail. (Note that the game auto-saves if someone dies; this behavior is often considered undesirable, but there are actually a couple exploits involving this.)
* Ashes: Result of a failed attempt at curing Death, and I believe the character loses all equipment when this happens. Cured with a 75 MP spell (which will lower the caster's Wisdom by 5 when used on a valid target), or with a healer. Curing this can fail.
* Cold (NES version only): This status found only in the NES version (and most likely the MSX cartridge version) is similar to Poison, but it is contagious and can't be cured with a spell.
Perhaps you mean one of these status ailments?