 [ Symptoms ] i thought my first period started 2 weeks ago but now theres brown stuff at first when i first got it it was a lot of red blood at one time now its all this thick dark brown stuff is this normal keep in mind this is my very first period [ Disease ] oxycodone of course is a potent narcotic pain medication his doctor must feel that he needs this level of pain control ondansetron is used to control nausea and vomiting only theodt just means oral disintegrating tablet melts in your mouth oxycodone can cause nausea but i have no idea if this is the reason his doctor prescribed it