I think you should consult a doctor or a therapist about this. They'll be able to give you an indication about when it's the right time to reduce it and when you're ready to stop taking it. Only they have the right authority for this. Every person is different. I'm not able to put a time on it for you, since I don't have the proper authority to do so. Talk this through with a doctor or a therapist and they'll be able to provide you an answer.
