Age: 33, 6'0", 210lbs, Allergic To Sulfa Drugs... Hi. I

Age: 33, 6'0", 210lbs, allergic to sulfa drugs... Hi. I was just surfing through the ideas online here... I'm interested in understanding which medications might help me with concentration/motivation when trying to buckle down into my reading/writing and musical composition/rendering, because sometimes, I'm a little lopsy loodle and can't really buckle down and get on task and stay on task and maintain.... any suggestions?