Blood as the earliest drug, its substitutes, preparations and latest position

Blood was soul and Redness its active principle when red substances were rich in soul-content. But soul was a substance whence blood became a drug which donated soul to treat wounds and incurable diseases. Its redness as life-force, but also as substance, could prolong life. A drug made from human blood could treat serious wounds and as a life saving drug was also a drug of fertility. The latest use of blood appears as syrup haemoglobin while the latest use of human blood would be blood transfusion.