The fish oil pill isn't really a pill, it is a vitamin using Omega 3 fatty acids (the good kind of fatty acids). They help in memory, focus, joint health, and heart health.
Being an A.D.H.D. person who adamantly abhors chemical altering medicine, I look for purely natural ways to cope with my A.D.H.D. ADDitude Magazine has many articles on how to naturally cope with things like memory and focus, and the fish oil pills were recommended to me. They help along with eating right, exercising and meditation.
You can buy fish oil pills at any local supermarket.