 [ Symptoms ] can ondansetron show up positive for thc on a drug test  i was recently dropped from my doctor after 16 years of being a model patient in april i took a drug test and was terminated because he said my test was bad that is all the explanation i got i do not do any drugs i am not prescribed but i was given zofran ondansetron for nausea i only take it a couple times a month can this prescription in anyway make you have a bad drug test if not and he will not tell me specifically what was wrong with my drug test what can i do so this does not happen again [ Disease ] i also had the depo shot for 2 years became prego after 1 12 years of stoppin my periods came back but were never normal again for example i had 7 days of bleeding b4 now up to 4 the most but i have heard some research showing that depo has made some people unable to have children how long were you on it i really think you should talk to your doctor about this and try to get a lil info on the newly discoverd things about depo hope this helped and good luck