What is Provigil and What Does Provigil Do? Provigil is the brand name for the drug Modafinil. http://www.cheapprovigilsales.com/ - order modafinil The side effects are as followed: - Nausea - Hallucinations - Depression and suicidal thoughts - Ulcers/swelling on the gums and around the mouth - Numbness and weakness in the muscles - Trouble sleeping (Insomnia etc. ) - Headaches and/or dizziness Cost of Provigil