R R

What Is Provigil?

Provigil is a prescription wakefulness-promoting medication containing modafinil. It is approved to improve wakefulness in adults experiencing excessive sleepiness associated with narcolepsy, obstructive sleep apnea, or shift work disorder. Provigil is taken orally and is classified as a Schedule IV controlled substance in the United States. It helps patients remain awake but does not cure the underlying sleep disorder. In obstructive sleep apnea, Provigil does not replace treatments such as continuous positive airway pressure that address airway obstruction during sleep.

Link to This Resource Page

Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.

To display this...

What Is Provigil?

Provigil is a prescription wakefulness-promoting medication containing modafinil. It is approved to improve wakefulness in adults experiencing excessive sleepiness associated with narcolepsy, obstructive sleep apnea, or shift work disorder. Provigil is taken orally and is classified as a Schedule IV controlled substance in the United States. It helps patients remain awake but does not cure the underlying sleep disorder. In obstructive sleep apnea, Provigil does not replace treatments such as continuous positive airway pressure that address airway obstruction during sleep.

read more about provigil ...

Copy this HTML:

Copy HTML Copied!

How Does Provigil Work?

Provigil acts on brain systems involved in regulating wakefulness. Modafinil binds to the dopamine transporter and inhibits dopamine reuptake, increasing dopamine signaling in certain areas of the brain. Its full wakefulness-promoting mechanism is not completely established and differs from that of traditional amphetamine stimulants. Modafinil can reduce excessive sleepiness in eligible patients but does not correct the cause of narcolepsy or obstructive sleep apnea. It can also affect liver enzymes involved in medication metabolism, creating interactions with certain prescription drugs.

What Sleep Disorders Does Provigil Treat?

Provigil is approved to improve wakefulness in adults with excessive sleepiness caused by narcolepsy, obstructive sleep apnea, or shift work disorder. Narcolepsy is a neurological condition associated with excessive daytime sleepiness and other sleep-related symptoms. Shift work disorder affects people whose work schedules interfere with normal sleep timing. For obstructive sleep apnea, Provigil treats residual excessive sleepiness rather than the airway obstruction itself. Healthcare professionals evaluate sleep habits, underlying conditions, and existing treatments before prescribing it. Provigil is not approved for pediatric use or general fatigue unrelated to its labeled conditions.

How Should Provigil Be Taken?

For narcolepsy and obstructive sleep apnea, the recommended Provigil dose is 200 mg orally once daily in the morning. For shift work disorder, the recommended dose is 200 mg approximately one hour before the work shift begins. Provigil can be taken with or without food, although food may delay absorption. Patients with severe liver impairment generally receive half the standard recommended dose. Lower doses may be considered for older adults. Patients should not exceed their prescription or use Provigil to replace adequate sleep. Hormonal contraception may be less effective during treatment and for one month after discontinuation.

What Are the Side Effects and Warnings of Provigil?

Common adverse effects include headache, nausea, nervousness, dizziness, insomnia, and anxiety. Serious risks include severe skin reactions such as Stevens-Johnson syndrome, drug reaction with eosinophilia and systemic symptoms, angioedema, and serious psychiatric symptoms. Provigil can cause or worsen agitation, depression, mania, or hallucinations in susceptible patients. Cardiovascular precautions apply to certain structural heart conditions. Modafinil can reduce the effectiveness of steroidal contraceptives through medication interactions. Patients should stop the medication and seek urgent medical attention for a severe rash, facial swelling, breathing difficulties, or major behavioral changes.

Common Questions About Provigil

Is Provigil the same as modafinil?

Yes. Provigil is a brand name for modafinil, a prescription medication that promotes wakefulness in adults with certain sleep disorders.

Can Provigil treat narcolepsy?

Yes. Provigil is approved to improve wakefulness in adults with excessive sleepiness associated with narcolepsy.

Does Provigil treat obstructive sleep apnea?

Provigil can improve excessive sleepiness associated with obstructive sleep apnea, but it does not treat the underlying airway obstruction or replace prescribed airway therapy.

Can Provigil affect birth control?

Yes. Provigil can reduce the effectiveness of hormonal contraceptives. Alternative or additional contraception is recommended during treatment and for one month after stopping it.

References

DailyMed - PROVIGIL (modafinil) tablet. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=0391f182-1958-9fef-a944-53b229ce99e7. Date Accessed November 2, 2026.

Modafinil. MedlinePlus. https://medlineplus.gov/druginfo/meds/a602016.html. Date Accessed November 2, 2026.

Modafinil. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/4236. Date Accessed November 2, 2026.

Modafinil. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK531476/. Date Accessed November 2, 2026.

Modafinil. IUPHAR/BPS Guide to Pharmacology. https://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=7555. Date Accessed November 2, 2026.