What is Provigil?
Provigil® (modafinil) is a prescription medicine used to treat people who have narcolepsy, a condition that causes frequent and uncontrollable daytime sleepiness. Provigil® also reduces yawning and is indicated to improve wakefulness in people with other sleep disorders such as sleep apnea/hypopnea syndrome, and shift work sleep disorder.
Potential side effects
The most commonly reported side effects of Provigil® include headaches, nausea, nervousness, diarrhea, dry mouth, rhinitis, back pain, dizziness, and difficulty sleeping at night. Similar stimulant-type medications to Provigil® such as Ritalin® (methylphenidate) and Dexedrine® (dextroamphetamine) have been associated with dependence when taken without a physician's directions. While there are no reports of physical or psychological dependence with Provigil®, the risk of dependence isn't well studied. If you have high blood pressure, heart disease, liver disease, or kidney disease, you may need a lower dose of Provigil®. Contact your physician if you have any more questions about taking Provigil®.
Provigil® success rate
Medical research shows that Provigil® is effective in up to 74% of the people who take it for
narcolepsy. Its effectiveness when compared to other drugs isn't known. The usual dose of
Provigil® is 200 mg daily in the morning. It can be taken with or without food. It may take one
to two months of treatment to see the drug's full effects.
Have a more specific question?
Sign in or register to ask a Walgreens pharmacist.