I have experienced an unpleasant taste in my mouth for 2 years now ever since a tooth extraction. After several visits to dentist I went to my gp who was able to refer to the Dental Hospital. They seem to believe the first taste is due to anxiety and that by constantly thinking about it it sort of makes me believe the taste is there. I found it to be very troubling so they recommended that my GP prescribe Mirtazapine. I have been taking 15mg daily for about 5 months. I can"t say that it has made the taste go away but it has at least helped with the worry caused by thinking about the taste all the time. I have another appointment at the Dental Hospital next month to see how I've been doing, so it'll be interesting to see what they say.