These worked great for me, I got to my goal of 150 after starting out at 195, my highest weight ever after having my daughter. I took the 37.5mg pills, split in half so I took one in the morning and one before lunch. I had insomnia at the start so my doctor said to just take the morning half and then start taking the second half after 2 weeks. I still got some insomnia as well as headaches and dry mouth but the phen helped me with eating better and controlling portions. I'm finishing off my last pack now, taking half a pill every second day and my weight is in check so far, I just hope it lasts when I finish!