Hello @ebertolis, I took HU for only 6 months. I got whiplash and injured my neck in 2015 but rehabilitated it without drugs, injections or surgery. Prior to the medication, I NEVER had ANY problems with my teeth, hair loss or joint pains. Now that I am off of the medication, I still have the hair loss, but I am treating it with hair growth serum. However, I do not have the constant joint pains in my neck, back, and knees that I used to, despite still working out in my spin and weight training classes.