In short order Glycon worship was found throughout the vast area between the Danube and Euphrates. Beginning late in the reign of Antoninus Pius and continuing into the 3rd century, official Roman coins were struck in honor of Glycon, attesting his popularity. The Roman currency bearing the image of Glycon is known to have been in active circulation during 3rd century AD, however it is unknown if some of them were produced in this time period or if they remained in use after being produced earlier, during Alexander's life (c.105-c.170).