Dear Welcome to HCM We understand your concerns I went through your problem description. I sincerely suggest that depo provera studies on human beings never shown any significant relation to ammonia. No relationship at all. Then what is the reason for this ammonia smell? Where are you working? Do you have any relationship with ammonia? means your work place etc? I suggest that you are imagining the smell. Don t get outraged. because this could be true. People do have hallucinations (imagination) about so many vivid things. If you cannot explain any relationships, just ignore the ammonia smell because actually it is not there. Hope this clears your doubts. Available for further clarifications. good luck.