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Provigil and Nuvigil

Provigil and Nuvigil are prescribed to patients with narcolepsy, obstructive sleep apnea and shift work disorder. The medications can have serious side effects, including psychiatric issues, serious skin rashes and potential for abuse.

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  • Last update: November 3, 2025
  • Est. Read Time: 7 min read
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  • Written by
  • Last update: November 3, 2025
  • Est. Read Time: 7 min read
Key Takeaways
  • Provigil and Nuvigil are prescribed for sleep disorders
  • Psychiatric issues, including mania, psychosis and depression, can develop when taking these medications
  • Some patients also developed serious and potentially life-threatening skin conditions

Provigil and Nuvigil are both prescription stimulants used to help adults with sleeping disorders be more awake and alert. Both medications are Schedule IV controlled substances, meaning they have a relatively low, but clinically significant, potential for abuse.

Both drugs have side effects that can cause serious harm to patients, including skin problems, like rashes, and psychiatric issues, including mania, psychosis and depression.

Many patients who were prescribed these medications and experienced adverse side effects are taking legal action against the drug makers. An antitrust lawsuit claimed that Provigil’s manufacturer delayed generic and more affordable options. Other cases claim that Provigil and Nuvigil manufacturers failed to warn consumers about skin and mental health impacts.

What Are Provigil and Nuvigil Prescribed For?

Provigil and Nuvigil are prescribed to treat three sleep disorders: narcolepsy, obstructive sleep apnea and shift work disorder.

Provigil is the brand name for a drug called modafinil, a stimulant that the FDA approved in 1998. In 2007, the FDA approved another variant of the medicine, called Nuvigil, with the active ingredient armodafinil. The medications are similar, but armodafinil typically has longer-lasting effects.

Both medications were approved to treat three sleep disorders:

Narcolepsy:
Narcolepsy is characterized by extreme drowsiness that often causes you to fall asleep suddenly without warning.
Obstructive sleep apnea:
Obstructive sleep apnea interferes with your breathing when you sleep, causing your throat muscles to relax so much that they block your airway.
Shift work disorder:
Shift work disorder is a health problem that can develop in people who work at night. It can cause difficulty falling asleep or staying asleep, as well as sleepiness at undesirable times.

The American Academy of Sleep Medicine warned that the medications are only approved for the treatment of these three conditions. The organization stresses that the drugs shouldn’t be used for cognitive or performance enhancements, nor should they be prescribed off-label for these reasons.

Despite this, these drugs are often prescribed off-label for conditions such as ADHD and depression.

Provigil and Nuvigil Side Effects: Psychiatric and Physical Risks

There is a significant overlap in common Nuvigil and Provigil side effects. Clinical trials show that both drugs caused anxiety, gastrointestinal upset and headache in 5% or more of study participants.

Headache is the most common side effect of Nuvigil, occurring in 17% of clinical study subjects taking it compared to only 9% taking a placebo. There was a similar increase among Provigil study patients (34% vs 23%).

Common Provigil and Nuvigil Side Effects
  • Anxiety/nervousness
  • Diziness
  • Dry mouth
  • Headaches
  • Insomnia/ difficulty sleeping
  • Loss of appetite
  • Nausea
  • Shaking
  • Sweating
  • Vomiting

Nuvigil and Provigil have many side effects in common. However, those who take Provigil may experience several side effects not typically associated with Nuvigil, including back pain, rhinitis and throat inflammation.

Most common side effects are minor and gradually diminish as you adjust to the new medication. If they worsen or do not go away after several days, talk to your doctor about strategies for managing them.

Managing Common Provigil and Nuvigil Side Effects

Some lifestyle changes can alleviate many of the most common Nuvigil and Provigil side effects. Staying hydrated and reducing stress may reduce headaches associated with Provigil and Nuvigil. To limit dizziness, try to move slowly when changing positions.

Gastrointestinal disorders are also fairly common with these drugs. Taking them with food may lessen nausea. Avoiding spicy and greasy foods can also help and aid digestion in general. Take note of any mental health changes and report them to your doctor.

Serious Side Effects

Serious Nuvigil and Provigil side effects are rare, but instances of severe dermatological reactions, hypersensitivity reactions and cardiovascular events can occur. Additionally, Nuvigil packaging indicates that approximately 2% of clinical study subjects discontinued treatment due to psychiatric symptoms such as anxiety, depression or agitation. This rate was higher than the placebo group experienced.

Severe Adverse Reactions
  • Multiorgan hypersensitivity
  • Psychiatric symptoms
  • Stetens-Johnson syndrome

You can experience impairment of some motor skills and judgment while taking Provigil and Nuvigil, and both medications can interfere with your ability to safely operate a car or heavy machinery. You should limit these activities until you know how you react to the medicine.

Skin Reactions and Stevens-Johnson Syndrome

Although rare, serious skin reactions can occur in patients taking Nuvigil and Provigil. Postmarketing experience shows rare cases of Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis. These can be life-threatening if untreated. Even with treatment, they can be disfiguring.

SJS is a serious rash that starts with flu-like symptoms. Blisters form within several days and then burst. The condition can affect the skin and mucous membranes.

Treatment for medicine-induced SJS typically involves discontinuing the medication; however, you should not stop taking Nuvigil or Provigil without speaking to your doctor first. Many patients also need continued care in a hospital setting.

In February 2017, the FDA approved new warnings for Nuvigil about possible serious skin reactions and multiorgan hypersensitivity. The approval also included several other changes to bring product packaging up to date.

Severe Allergic Reactions and Anaphylaxis

Nuvigil and Provigil packaging include warnings about the possibility of severe allergic reactions. Both advise patients to seek medical attention if they develop symptoms consistent with a drug allergy.

Symptoms of Drug Allergy
  • Blisters that peel
  • Dark urine
  • Difficulty swallowing
  • Jaundice
  • Rash, hives or mouth sores in your mouth
  • Shortness of breath
  • Swelling of your eyes, face, lips, tongue or throat
  • Swelling of the legs

Allergic reactions can become severe. They may affect your liver and blood cells. Anaphylaxis is possible in some cases.

Birth Defects and Pregnancy Complications

There appears to be an increased risk of congenital birth defects when pregnant women take Nuvigil or Provigil. The packaging of both medications discusses this risk briefly.

Multiple patients filed lawsuits seeking compensation after taking Provigil or Nuvigil when pregnant. Additionally, the U.K. guidelines suggest that women limit or stop the use of these drugs during pregnancy.

Abuse Potential and Withdrawal Risks

The active ingredients in Provigil and Nuvigil can be addictive, which has resulted in the medications being classified as Schedule IV controlled substances. The controlled substances are classified by severity. For example, Schedule I substances, such as heroin, are the most addictive and Schedule V substances, such as certain cough medicines, have the lowest abuse potential.

Regarding Provigil and Nuvigil, their psychoactive and euphoric effects are the primary force behind their addictive potential. The way they alter mood, perception and thinking, and their impact on the brain’s pleasure centers, can contribute to the drugs becoming habit-forming.

Because your body can become reliant on these medications, you may experience withdrawal symptoms if you abruptly stop taking them. If you experience any of the symptoms below after stopping Provigil or Nuvigil, it may be withdrawal.

Provigil and Nuvigil Withdrawal Symptoms
  • Abnormal heart rhythms
  • Aggression
  • Chills
  • Confusion
  • Nausea
  • Shaking
  • Sweating
  • Vomiting

Seizures and suicidal thoughts can also occur as a result of withdrawal, but these side effects are less common.

Some students take these medications off-label as a study enhancement drug and can become dependent on them.

FDA Safety Alerts and Label Revisions

Both Provigil and Nuvigil labels contain warnings about the risks of serious rash, including Stevens-Johnson Syndrome. These warnings were added after the FDA requested a label update in 2007.

The FDA sent a letter to Cephalon, the drug manufacturer at the time, stating, “Based on the rate of serious skin and other hypersensitivity reactions with modafinil in clinical trials and the post-marketing setting, we are requesting that you adopt a bolded statement in the Warnings section describing the risk.”

In addition to the bolded warning, the FDA also requested a statement describing two hypersensitivity reactions observed in patients during clinical trials and urged additional follow-ups and future clinical trials to better understand the risks.

Provigil and Nuvigil manufacturers have been under fire in the past concerning their medications.

Teva Pharmaceuticals, which acquired Cephalon, Inc. in 2012, settled a lawsuit with the Federal Trade Commission (FTC) for $1.2 billion in 2015. The FTC had filed an antitrust lawsuit, alleging that Cephalon had paid off generic drug manufacturers to delay the release of a generic version of Provigil.

The organization argued that delaying the release of a generic version of Provigil was an anticompetitive move called “pay for delay.” This tactic allegedly allowed Cephalon, as the sole manufacturer of Provigil at the time, to overcharge consumers for Provigil.

More recently, patients who were harmed by the drugs are filing Provigil and Nuvigil lawsuits. Many pending cases involve allegations of failing to warn of dermatological or psychological risks. If you believe these drugs have harmed you, you may want to consult with an attorney to explore your legal options.

What Patients Should Know and Do Next

If you or someone you love uses Provigil or Nuvigil, you should be aware of potentially serious side effects. These include:

  • Mood swings, hallucinations and other mental health changes
  • Chest pain
  • Skin rashes

If you experience any complications, you should seek medical treatment as soon as possible. Be sure to document the issue in case you wish to pursue future legal action.

You can also report a problem to the FDA’s MedWatch program. The FDA uses these reports to identify problems with drugs and medical devices and take appropriate action, including publishing safety alerts when necessary.

Please seek the advice of a medical professional before making health care decisions.