Provigil nootropic drug is also called as wakefulness promoting agent. The name given to it because of its capacity to make one stay alert in the day hours. People tend to fall asleep in the daytime when they do not get proper sleep in the night because of several sleep ailments. Some also buy Provigil for the improvement of cognitive abilities. For whatever purpose you are consuming the medicine, you need to know about the pros and cons developed by this medication. Thus meet your doctor and get your queries solved regarding this smart drug.A lot can happen with provigil drug if you don’t know how to consume the drug in right way. Thus you must ask your doctor about the dosage format and also drug interaction tendency of this medicine. If you are having any health issues then consuming nootropic medication may worsen your present situation. Therefore you must take this drug after discussing with your physician.This smart drug works on the brain neurotransmitters and alters their re-uptake process. This is how it helps in increasing the effects of these brain chemicals. On the other hand, provigil 200mg pills also augment the flow of blood to the brain cells along with increased supply of nutrients. Growth of new nerve cells is also supported by this medicine. Provigil without prescription is also available so that people can use it for memory enhancement.Before you try your hand on smart drugs, you must know that these drugs such as Provigil tablets may cause some side issues in you. These are headache, nausea, anxiety, lightheadedness, dry mouth and insomnia. In very rare cases you may develop chest pain, eating disorders, hypertension and other mental issues with this drug for narcolepsy. In such incidents, you must stop using the drug and contact your health care provider.