K. Jones asks: Where does the symbol “Rx” come from? Rx proposed a different origin- specifically, the symbol known as the “Eye of Horus. How a special sign came to mean a doctor's prescription. Transcript of Thoth, with his wisdom and special powers, healed the eye of Horus. Ehab explaining how, over time, the ancient Eye of Horus has slowly morphed into the Rx symbol used for. Take charge of your biochemistry through foods and supplements, rather than allow toxic prescription drugs to take charge of you. As time elapsed Ra, the Supreme Solar God was identified as the sun god and according to ancient Egyptian mythology, the right eye came to represent the sun and so it was called the "Eye of Ra" whilst the left represented the moon and was known as the "Eye of Horus". Eye of Horus - Measuring System The ancient Egyptians used the Eye of Horus as a notation of measurement to express fractions of volume. Call to talk to Ben during the show Take charge of your biochemistry through foods and supplements, rather than allow toxic prescription drugs to take charge of you. Horus's eye, also called he wadjet eye, became a symbol for health. View my complete profile. Thus began the legend of the Eye of Horus which initially referenced Sirius, the brightest star in the sky, known as the Dog Star whose first appearance at the beginning of summer predicted the flooding of the Nile. According to Egyptian Mythology Horus lost his left eye in his war with Set who tore the eye into six pieces. Why is there a symbol 'Rx' in prescriptions given by a doctor? See comment in PubMed Commons below J R Coll Physicians Lond. Facts about the Egyptian Eye of Horus The Eye of Horus was an ancient Egyptian hieroglyph and its icon is depicted in art, artefacts, relics. The narrator was Maurice Joyce. Help us improve Quora:.