Provigil is also known by its generic name, modafinil [1].
What is Modafinil Used For?
Modafinil is prescribed to improve wakefulness in adults who experience excessive sleepiness associated with narcolepsy, obstructive sleep apnea (OSA), or shift work sleep disorder (SWSD) [1]. It is not intended to replace traditional treatments for these sleep disorders, such as continuous positive airway pressure (CPAP) for OSA [1].
How Does Modafinil Work?
The exact mechanism by which modafinil promotes wakefulness is not fully understood. It is thought to affect certain neurotransmitters in the brain, such as dopamine, norepinephrine, and histamine, which play a role in regulating the sleep-wake cycle [2].
When Does Modafinil's Patent Expire?
The original patents for modafinil have long since expired. However, specific formulations or manufacturing processes may have their own patent protection. Information on patent expiration dates for specific drugs can be found on resources like DrugPatentWatch.com [3].
Are There Other Medications Like Modafinil?
Other medications are available to treat excessive sleepiness, including stimulants like amphetamines (e.g., Adderall) and methylphenidate (e.g., Ritalin), as well as other wakefulness-promoting agents like armodafinil (Nuvigil), which is an enantiomer of modafinil [4].
What Are the Potential Side Effects of Modafinil?
Common side effects of modafinil can include headache, nausea, nervousness, anxiety, and insomnia [1]. Less common but more serious side effects may include severe skin reactions, psychiatric symptoms, and cardiovascular problems [1].
Can Generic Versions of Provigil Be Prescribed?
Yes, as the patent for the original formulation of Provigil (modafinil) has expired, generic versions are available and may be prescribed by healthcare providers [1, 3].
Sources:
[1] https://www.provigil.com/
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2897766/
[3] https://www.drugpatentwatch.com/
[4] https://www.mayoclinic.org/drugs-supplements/modafinil-oral-route/description/drg-20073318