Showing posts with label provigil. Show all posts
Showing posts with label provigil. Show all posts

Tuesday, July 24, 2012

Provigil in the news

ABC News recently did a story about off-label use of Provigil, a stimulant that is approved by the FDA to improve sleepiness in narcolepsy, obstructive sleep apnea, and shift work disorder. Apparently, there is an increasing number of Americans who are taking Provigil, and the article implies that it is being taking for off-label reasons - to improve focus and daytime energy. The article talks about a few people, most of who remain anonymous. They all tout the benefits of taking Provigil. It's not stated whether these individuals have been diagnosed with a sleep disorder or if they received their prescriptions from their doctor or online.

ABC News did an "experiment" on one person - a software company CEO who takes Provigil daily. They had him stop the Provigil for 3 days. He noticed a "very slight" change in his own speech, whatever that means. They had him do cognitive tests off the Provigil. The next day, he took the Provigil, and reports feeling more alert in 17 minutes. This is implausible, as it most likely had not even been absorbed into his bloodstream yet - this makes me think there is a significant placebo effect at work here. After he took the Provigil, he repeated the same cognitive tests and reportedly did much better. ABC News implies the Provigil is what helped - but could he have done better just because he was repeating tests he had taken the day before? In other words, he may have improved due to learning what to expect from the test, not from taking Provigil.

Taking Provigil off-label could be dangerous. Recently, a life-threatening rash has been reported in some taking Provigil. Not discussed in the article is that Provigil, and it's new brother Nuvigil, may reduce the effectiveness of oral contraceptives, making unwanted pregnancy more likely. Finally, the article mentions that there are no studies showing that performance improves with Provigil. In fact, if you take Provigil to offset sleep deprivation, there is a good chance that you will not gain much, as sleep loss itself reduces performance. I wonder how much placebo effect the people in the article are receiving, as they all think they are taking "Viagra for the brain" as stated in the article.

Instead of taking Provigil to give yourself a theoretical edge, it would be better to eat right, exercise daily, get enough sleep, and prepare better for whatever life brings your way.

Monday, November 21, 2011

Provigil and Physician Alertness

Physicians in certain specialties often stay up most or all of the night when they are on call, and then have to work the entire next day. This is very taxing mentally and physically. However, it is controversial whether this acute sleep deprivation affects how physicians perform at their job. Some say it puts patients at risk for errors, while others say it has little effect on experienced physicians.

Provigil (or Modafinil) is a stimulant medication approved for shift work disorder, narcolepsy, and excessive sleepiness associated with obstructive sleep apnea. It can help workers stay alert on their overnight shift. A study was done in London on 39 male physicians where they were given either 200mg of Provigil or a placebo after one night of sleep deprivation. They were given cognitive tests and asked to use a surgery simulator program to gauge their skills.

Results showed that those doctors that used Provigil did better on the cognitive testing, including working more efficiently, planning, working memory, had less impulsivity, and were better able to redirect their attention. However, no improvements were seen in the surgical simulator program. The study authors concluded that Provigil might help sleep deprived physicians to process information better, think more flexibly, and make decisions under pressure. However, it might not improve their performance on basic procedural tasks. I wonder if because these tasks have been done so often that they could do them well whether they are rested or not.