Abstract: A nicotine method and solution which utilizes an acidic solution containing nicotine. The solution is for use to treat various medical conditions, such as to reduce the need of a user of smoking tobacco to smoke tobacco, to reduce attention deficit disorder symptoms in a person who has attention deficit disorder, and/or to reduce Alzheimer's disease symptoms in a person who has Alzheimer's disease. The solution is palatable and may be introduced into the person by the person drinking it. Subsequent to drinking, the blood plasma levels are sufficient to reduce the need to smoke tobacco, to reduce attention deficit disorder symptoms, and/or to reduce Alzheimer's disease symptoms.