Modafinil, is a central nervous system stimulant. It is used to treat narcolepsy. It helps people who work rotating shifts. Off-label meaning outside of official medical recommendations Modafinil has a number of additional uses. In the main, it improves cognitive functions. It enhances concentration positively influences the assimilation of knowledge. Studies in animal and human models confirm that modafinil promotes increased wakefulness and reduces appetite and sleep requirements.
Farkmacologically, modafinil is well tolerated by the human body, although there may be probable side effects of using the drug. These include headache, difficulty falling asleep or insomnia, and nausea. In rarer cases, dermatological symptoms occur especially in younger patients. If skin allergic reactions occur, it is recommended to stop using the product. In rare cases, patients may experience serious allergic reactions such as anaphylaxis Stevens-Johnson syndrome may also occur. People who have experienced psychotic states in the past may experience hallucinations. Clinical studies on the use of modafinil during pregnancy are lacking. The amount of the drug taken should be reduced in patients with kidney or liver problems. Modafinil is not recommended j in cases of arrhythmia and in patients with significant hypertension. Safety precautions should absolutely be observed when a patient has a hypertrophied left ventricle. Modafinil indirectly affects dopamine and its mechanism of action affects brain regions responsible for sleep regulation.
Modafinil was invented by a neuroscientist in 1970. Michel Jouvent had this happen during his work for Lafona Laboratories.
Modafinil as a drug began to be officially prescribed to patients in 1994. Four years later in 1998, it was classified as a controlled substance by the FDA in the United States of America. In the UK, modafinil is prescribed by prescription only. Modafinil became the 336th most prescribed drug in the US in 2019. The total number of prescriptions written reached more than 900,000.
Modafinil Medical Profile
Modafinil is not considered by science as a classic psychostimulant. It is included in the group of eugoretic or wakefulness-promoting drugs. It is used to treat people with narcolepsy, that is, patients who fall asleep in circumstances where it is not advisable or dangerous. People who work shifts or suffer from excessive sleepiness will naturally reap the benefits of using modafinil. Patients with obstructive sleep apnea will reap the benefits of this drug. The European Medicines Agency, because of the risk of skin allergic reactions, recommends prescribing to patients with narcolepsy and for the treatment of associated drowsiness. The clinical trials conducted ruled out building tolerance to modafinil at therapeutic doses even if the drug was used long-term for up to three years.
Historical Outline
Modafinil as a French invention was used in the French Air Force. It displaced the earlier agent Adrafinil. Modafinil was recognized as useful on the battlefield by the French defense minister in 1989. Since then, it has been administered to aviators under the name Virgyl. The drug was found to be effective in improving a soldier’s operability and improving his rate of response. The test was conducted before modafinil was officially recognized as a drug. The soldiers were not informed about the nature of the medicine they received. Since then, Modafinil’s career in the armies of the world has expanded to include the United States. Modafinil became known as a great alternative to amphetamines, which were given to soldiers in situations of prolonged missions when soldiers experienced chronic sleep deprivation. The French government has admitted that Modafinil was administered to Foreign Legion soldiers for some operations. In 2011, the Indian Air Force announced that Modafinil would be used in situations requiring it.
In the US Army, modafinil has been approved for use in the Air Force. A project examining the drug’s suitability for use in other army units has also been approved.
In 2012, modafinil was approved by the U.S. Army as a drug to offset fatigue. Thus, the use of dextroamphetamine in the U.S. Army Air Force was replaced by modafinil. Modafinil is also used in special units.
The Canadian Medical Journal published a report that modafinil is being used by astronauts on missions to the International Space Station.
Medicines containing Modafinil
Modafinil for sale is usually available as tablets taken orally. A single tablet contains from 100mg to 200mg of the active substance. Modafinil is also available as an (R)-enantiomer. Armodafinil is metabolized in the liver and its metabolite becomes Modafinil.
Modafinil Brand Names:
Modafinil is sold under many different brands around the world among the leading brands that include this psychostimulant we can distinguish:
- Modafinil
- Modafinilo
- Provigil
- Zalux
- Wakelert
- Modiwake
- Alertec
- Vigimax
- Vigil
- Stavigile
- Vigia
- Resotyl
- Modalert
- Modasomil
- Modvigil
- Modiodal
- Modiwake
- Modiwake
- Forcilin
- Intensit
- Mentix
Contraindications
Modafinil is contraindicated for people who are hypersensitive to any of its forms, including armodafinil. The drug is contraindicated for administration to children.
Side effects
Incidents with side effects affect less than 10% of modafinil users. This group reports headaches, nausea and a reduction in appetite, Between 5% and 10% of users may experience anxiety, listlessness dizziness may also experience diarrhea or rhinitis. Side effects of modafinil are reported by patients with a prior history of treating the disorder. No effect of modafinil on weight reduction was observed in clinical trials. However, reduced appetite is a common effect of taking modafinil.
Rare cases of skin irritation and rashes were the most serious side effects. From December 1998 to January 2007, the U.S. Drug Administration (FDA) received six reports noting:
- Erythema multiforme.
- Stevens-Johnson syndrome.
- Toxic epidermal necrolysis.
- DRESS Team.
The long-term safety and efficacy of modafinil have not been studied. One study of patients suffering from narcolepsy and taking modafinil for more than a decade demonstrated that the drug showed effectiveness in treating nakrolepsy throughout. Tests were conducted with both modafinil and armodafinil.
Addiction
The addictive properties of modafinil are relatively low. The modafinil molecule shares a biochemical mechanism with other stimulant drugs. Similar to other stimulants, it has shown self-enhancing effects, albeit to a lesser extent. The mood-enhancing effects are compared to those of caffeine. Modafinil does not cause euphoria in therapeutic doses, which should not lead to substance abuse. Modafinil has been classified by the FDA in a list of categories that have a low addictive potential that has no nakrotic effects. Group IV controlled substances classify modafinil as a substance that is not classified as a pyshotoropic drug or a narcotic.
Overdose
Trials (LD50) were conducted on modafinil using animal models. In mice and rodents. Half of the population to which the substance has been injected dies as a result of doses greater than 1,250 mg per kilogram of animal weight. Oral doses (LD50) ranged from 1,000 to 3,400 mg/kg. The intravenous administration (LD50) for dogs was 300mg/kg. Human clinical trials tested the administration of up to 1,200 mg per day for a period of 7 to 21 days. There is one known case of acute poisoning by overdose. The patient took 4500mg symptoms were not life-threatening. A state of agitation combined with excitement was observed in the patient. There was noticeable anxiety, irritability and also insomnia. Other symptoms included diarrhea, aggression nervousness heart papitation and nausea. The FDA had not recorded any fatal case related to modafinil overdose as a single substance until 2004. Compliant occurred when the patient overdosed on modafinil together with other drugs.
Interests
The administration of modafinil in combination with opoidam such as oxycodone hydrocodone or methadone and also fentanyl can result in decreased plasma concentration. This is because the active ingredient modafinil enhances the action of the CYP3A4 enzyme. If the patient is not properly monitored reduced withdrawal symptoms can take place. Modafinil has proven effectiveness in reducing the effects of hromonal contraception This occurs even up to a month after stopping the drug. In one study conducted in 2006, a single dose of 200mg caused a reduction in blood levels of prolactin. It was found that there is no interaction of modafinil with human growth hormone.
Pharmacokinetics
The bioavailability of modafinil is more than 80%. Cmax concentration in plasma takes place two to three hours after admininstallation. Food slows down the basorption of modafinil. The molecules bind to plasma proteins up to 60%. The studies were conducted on therapeutic doses of modafinil. The percentage coefficient of affinity for proteins in plasma does not change significantly with increasing dose.
Two metabolites of modafinil are known, one of which is modafinil acid (CRL-40467) and modafinil sulfone (CRL-41056). Both metabolites have no active effect. Metabolites appear to have no effect on the awake state offered by modafinil. Modafinil sulfone (CRL-41056), on the other hand, shows anticonvulsant activity is a feature shared with modafinil. The elimination time of half a dose ranges from 10 to 12 hours. The elimination of modafinil from the body is affected by differences in CYP genotype. The liver and kidneys play a critical role in the elimination of modafinil from the system. Modafinil is metabolized in the liver and its metabolites are excreted in the urine. In the excreted urine, pure modafinil as an unprocessed substance ranges from 0% to 18.7%, a factor that is associated with wider circumstances.
Chemistry
Chemically, modafinil is a recate mixture of two enatomers. ((R)-modafinil) and esmodafinil ((S)-modafinil).
Detection of modafinil in the body
Modafinil and its metabolites modafinil acid (CRL-40467) and modafinil sulfone (CRL-41056) can be labeled in plasma. The concentration of modafinil can be determined using a sample of the patient’s urine. Typically, this type of test is conducted to monitor the coordinated dose. The test is performed for forensic purposes and to determine potential modafinil poisoning. Lab techniques used for qualitative verification of substances include gas chromatography. The modafinil test can be performed in athletes. The use of modafinil may be classified as doping. It should be noted that modafinil can give false positive results as detected amphetamine or its derivatives. Therefore, it is important to perform additional tests to exclude or confirm the presence of amines in the test subject’s body.
Modafinil reacts with many reactants. It takes on a yellow to orange color for the Marquis reagent. When tested with Libermann, it takes on the color of darkening orange. When tested with Froehde, it takes on a color ranging from deep orange to red.
Structural analogs of modafinil.
Many different varieties and structural analogs of modafinil have been synthesized and studied. Examples of these andalogs include ; fladrafinil, adrafinil, CE-123, (CRL-40941; fluorafinil), modafinil sulfone (CRL-41056) , (CRL-40940; bisfluoromodafinil, lauflumide) as well as flmodafinil.
Non-medical use of Modafinil
Nootropic
The patch of “smart drug” or “drug for the smart” has stuck to modafinil. Modafinil is often used off-label i.e. outside of medical use and prescribing by a doctor. It is valued by users for its ability to raise focus. Reduction in sleep demand and mental focus are states desired by a range of professionals from students to surgeons.
Modafinil as a substance used in doping.
The classification of modafinil as a doping substance has led to controversy in the sports community. What should be noted several American athletes have tested positive for modafinil. The press naturally finds this information sensational. Some of the athletes tested for modafinil in their bodies challenged the decision, protesting that modafinil was not on the list of banned substances at the time the samples were taken. Be that as it may, WADA, the World Anti-Doping Agency, has stated that modafinil is among the substances that are currently banned. Since 2004, WADA has officially recognized the substance modfainil as doping. This was not without controversy as the list was changed 10 days before the start of the 2004 Summer Olympics. As of 03.08.2004, the modafinil molecule detected in an athlete’s body is officially recognized as doping.
Research conducted on modafinil beyond narcolepsy.
Psychiatric issues such as major depression.
Modafinil was taken under the microscope because of the screening results. Patients suffering from chronic depression were studied. In 2021, a systematic review and meta-analysis of data conducted on controlled groups of patients taking both placebo and psychostimulants led to interesting conclusions. A meta-analysis showed that patients who took modafinil and posychostimulants such as methylphenidate and amafetamines fared significantly better with depression than the control group. A more detailed analysis led the researchers to conclude that modafinil improves patients’ quality of life by reducing fatigue and sleepiness. For the treatment of severe depression, methylphenidate came to the forefront, which showed the greatest effectiveness among the substances listed. However, the analysis, despite the powerful amount of data, did not answer the question of how modafinil can positively improve the lives of patients with depression.
Off label
That is, potential uses of modafinil outside medical indications. The prefix smart-drug clings to modafinil. Modafinil is also often called the king of nootropics. It shares this title with another psychostimulant phenylpiracetam.
