E.D.
I have started to take homeopathic remedies (I was a skeptic until I took a remedy for migraines and my irritable bowel syndrome- and it worked better than the prescription medicine)
Go to 1-800homeopathy.com. They have remedies for everything including babies on up to elderly people. Even pregnant or recovering from pregnancy. And even pets! Try them out! It's amazing and not expensive. It's also not medicine (it's like herbal) and non addicting. And you can take it with medicine.
Just take my advice and read up on it. It's worth it.
E.
PS. St. John's Wort helps with concentration as does Ginko Biloba.