Narthecium

Narthecium is the name given to the medi-packs used by Space Marine Apothecaries. They allow you to ignore the first failed saving throw each turn for the unit that the Apothecary is with. The Narthecium may not be used on any model who has been unfortunate enough to suffer 'Instant Death' (eg, hit by a weapon with twice its Toughness) or that has been hit by a weapon that allows no save. It may also not be used if the Apothecary is in base contact with an enemy model.