For Communion as Viaticum, the Eucharist is given in the usual form, with the added words "May the Lord Jesus Christ protect you and lead you to eternal life".
The Eucharist is seen as the ideal spiritual food to strengthen a dying person for the journey from this world to life after death.
The desire to have the bread and wine consecrated in the Eucharist available for the sick and dying led to the reservation of the Blessed Sacrament, a practice which has endured from the earliest days of the Christian Church.
Unlike the Anointing of the Sick, Viaticum may be administered by a priest, deacon or by an extraordinary minister, using the reserved Blessed Sacrament.
Some claim this could relate to a traditional practice[1] that scholars have compared to the pre-Christian custom of Charon's obol, a small coin placed in the mouth of the dead for passage to the afterlife and sometimes also called a viaticum in Latin literary sources.