hi from pharmacyreviewer. com come this answer. the half life for dexamethasone is 36 to 54 hours. that means that the half of the drug remains in the system at around that time. so it takes double that time (around 72 hours and more) to fully eliminate the drug from your system. elimination occurs via metabolism and renal excretion. so by now you should be well clear. just have a very happy marriage. good luck
medication and pregnancy inquiry. i am planning on trying to get pregnant in mid january 2015. . i had a back issue dec. 7 2015 and was given dexamethasone injection to help with it at urgent care because i was desperate for relief before my wedding. i was given one injection on my lower back. the dosage is unknown. . i am unsure how long the medicine will be in my system. . i do not want to get pregnant unless i know the dexamethasone will be out of my system by then. . am i safe to get pregnant? if not how long is it in your system?