Modafinil, popularly known as the "smart drug," is a sleep-inducing pharmaceutical marketed as Provigil.

Modafinil, also known as the "smart drug," is a sleep-inducing medication sold under the brand name Provigil.

Modafinil is a drowsiness-relieving medication. Provigil is the brand name, and it's only available with a prescription (Buy Modafinil Online).

Narcolepsy, obstructive sleep apnea, and shift work sleep disorder are all treated with modafinil, which is marketed under the brand name Provigil.