Thank you. I passed it on to my husband and we'll keep posting here as to what the doctor has him do next. He has been very faithful to the dosage timing and is a clockwork schedule guy for work and sleep. He had to stop the 5 HTP before they reached max as the nausea was too much and they moved on to the dopamine challenge. Thanks for the information about the nausea, we didn't know how important that can be, He has been open about it with the doctor but because he can withstand a lot, he probably hangs in there longer then he should.