Liraglutide
"I'm very tall and very overweight. Six months on a controlled diet and exercise program yielded no results. My doctor put me on Victoza, suspecting some sort of metabolism issue (fasting blood sugar was a constant 101 for several years). Starting dose of 0.6 gave me a 20 minute headache each morning and left me lethargic. It got better in a week, upped to 1.2, same thing started. 20 minute headache, no energy. Again, it got better each day. Hit maintenance level of 1.8 and the weight began pouring off me at roughly a pound a day! A very effective appetite suppressant and my fasting blood sugar averages 91 now."