Armodafinil 50mg Tablet

Armodafinil 50mg Tablet is a prescription wakefulness-promoting medicine containing 50mg of armodafinil, the R-enantiomer of modafinil. It is used in adults to improve wakefulness in patients with excessive sleepiness associated with narcolepsy, obstructive sleep apnea (OSA), and shift work disorder (SWD).

Armodafinil is the generic medicine name, while Nuvigil® is the established brand name associated with armodafinil. The U.S. FDA-approved product labeling identifies armodafinil tablets in 50mg, 150mg, 200mg and 250mg strengths, and current U.S. DailyMed listings include authorized generic armodafinil 50mg tablets.

The regulatory status, manufacturer, brand availability, prescription requirements and permitted indications may differ between the USA, UK, UAE/Dubai, Australia, Singapore, Thailand, China and Russia. The actual product being supplied should therefore be described according to its manufacturer and authorization in the destination market.

Product Information

Generic Name

Armodafinil

Active Ingredient

Armodafinil

Strength

50mg

Dosage Form

Tablet

Route

Oral

Drug Class

Wakefulness-Promoting Agent

Pharmacological Class

Eugeroic / Wakefulness-Promoting Medicine

Reference Brand

Nuvigil® / Waklert

Reference Brand Manufacturer

Cephalon/Teva / Sun Pharma

Indications

Narcolepsy, obstructive sleep apnea-associated excessive sleepiness, and shift work disorder

Prescription Status

Prescription medicine

Controlled Status

Controlled substance in the United States

U.S. Generic Availability

Yes

Common U.S. Generic Strengths

50mg, 150mg, 200mg and 250mg

Administration

Oral

Active Ingredient per Tablet

50mg armodafinil

Packaging

Varies by manufacturer and market

Armodafinil 50mg for Narcolepsy

Narcolepsy is a neurological sleep disorder characterized by excessive daytime sleepiness and other disturbances of normal sleep-wake regulation.

Armodafinil promotes wakefulness and may help adults with narcolepsy remain more alert during the daytime. Treatment should be prescribed and monitored by a qualified healthcare professional.

Armodafinil 50mg for Obstructive Sleep Apnea

Armodafinil may be prescribed for residual excessive daytime sleepiness associated with obstructive sleep apnea.

It does not mechanically open the airway or cure the underlying obstruction. The FDA labeling specifically states that armodafinil treats excessive sleepiness and is not treatment for the underlying obstruction. Appropriate primary OSA therapy should be addressed before or alongside treatment for persistent sleepiness.

Armodafinil 50mg for Shift Work Disorder

Shift work disorder can occur when work schedules conflict with the body's normal sleep-wake cycle.

Armodafinil is approved for improving wakefulness in adults with excessive sleepiness associated with shift work disorder. U.S. labeling recommends a 150mg dose approximately one hour before the work shift; therefore, 50mg should not be presented as the standard labeled SWD dose simply because the 50mg tablet strength exists.

Armodafinil 50mg vs Nuvigil® 50mg

The commercially important distinction is:

Armodafinil 50mg = generic medicine / active pharmaceutical ingredient

Nuvigil® 50mg = branded armodafinil product

Nuvigil® is the reference brand associated with armodafinil. Generic armodafinil products are marketed by different manufacturers, and their excipients, packaging, appearance and regulatory status may differ.

A product should only be described as “Generic Nuvigil® 50mg” when that terminology accurately reflects its legal generic/equivalent status in the relevant market.

Armodafinil 50mg vs Modafinil

Armodafinil and modafinil are closely related wakefulness-promoting medicines but are not identical.

• Armodafinil: R-enantiomer of modafinil
• Modafinil: mixture of R- and S-enantiomers
• Armodafinil 50mg: contains 50mg armodafinil
• Modafinil 50mg: contains 50mg modafinil

They should not be described as interchangeable products solely because they belong to the same therapeutic category. Treatment selection and dosing should be determined by the prescribing healthcare professional.

Armodafinil 50mg Tablet Strength

Armodafinil tablets are commercially available in several strengths.

Current U.S. labeling identifies:

• 50mg
• 150mg
• 200mg
• 250mg

The 50mg tablet is therefore a recognized dosage strength, although the labeled recommended dose for a particular indication may be higher. The presence of a 50mg tablet does not mean that 50mg is the standard dose for every condition.

Armodafinil and Serious Skin Reactions

Patients taking armodafinil should be aware of the possibility of serious dermatological reactions.

The prescribing information warns about potentially severe skin reactions, including Stevens-Johnson syndrome. Treatment should be discontinued and medical attention sought at the first sign of a serious rash unless another clear cause has been established by a healthcare professional.

Armodafinil and Psychiatric Effects

Armodafinil may be associated with psychiatric symptoms in susceptible individuals.

Particular caution is recommended in patients with a history of:

• Depression
• Psychosis
• Mania
• Other significant psychiatric disorders

New or worsening psychiatric symptoms should be discussed promptly with the prescribing healthcare professional.

Armodafinil 50mg and Controlled Substance Status

In the United States, armodafinil is classified as a Schedule IV controlled substance (C-IV) because it can be abused or lead to dependence.

Patients should keep the medication secure and should not sell, share or give their prescription medicine to another person.

Controlled-drug classification and prescription regulations may differ between countries.

Armodafinil 50mg Availability & Ordering

Armodafinil 50mg Tablet has strong commercial search intent around the generic medicine, reference brand, strength, prescription status and international availability.

High-intent searches include:

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Availability and legal supply requirements vary by destination. For international pharmaceutical ecommerce, the actual manufacturer, authorization, prescription status and import requirements should be verified for the USA, UK, UAE/Dubai, Australia, Singapore, Thailand, China and Russia.

How it works

Armodafinil is the R-enantiomer of modafinil. Its precise mechanism for promoting wakefulness has not been fully established.

It has pharmacological properties similar to those of modafinil, but armodafinil is a distinct active pharmaceutical ingredient. It is classified as a wakefulness-promoting agent rather than being described simply as a conventional amphetamine-type stimulant.

Armodafinil is prescribed to improve wakefulness in adults with excessive sleepiness associated with:

• Narcolepsy
• Obstructive sleep apnea (OSA)
• Shift work disorder (SWD)

For OSA, armodafinil is intended to address excessive sleepiness rather than the underlying airway obstruction. Patients with OSA should continue appropriate treatment for the underlying condition, such as CPAP when prescribed.

Armodafinil dosage depends on the condition being treated and individual patient factors.

The current U.S. labeling recommends:

• Narcolepsy: 150–250mg once daily in the morning
• Obstructive sleep apnea: 150–250mg once daily in the morning
• Shift work disorder: 150mg once daily approximately one hour before the work shift

Severe hepatic impairment may require dosage reduction, and lower doses may be considered in geriatric patients.

Therefore, Armodafinil 50mg should be used only according to an individualized prescription, rather than assuming the tablet strength represents the appropriate daily dose.

Potential adverse effects associated with armodafinil include:

• Headache
• Nausea
• Dizziness
• Insomnia
• Dry mouth
• Anxiety
• Decreased appetite
• Diarrhea
• Palpitations
• Increased blood pressure

More serious reactions can occur, including serious skin reactions, hypersensitivity reactions, psychiatric symptoms and cardiovascular effects.

Current U.S. prescribing information warns about serious rash, DRESS/multi-organ hypersensitivity, angioedema/anaphylaxis, psychiatric symptoms and cardiovascular considerations.

Armodafinil can affect cardiovascular parameters in some patients.

Patients with known cardiovascular disease, hypertension or other relevant cardiovascular risk factors should inform their healthcare provider before treatment. The prescribing information recommends consideration of increased monitoring in patients with known cardiovascular disease.

Armodafinil Drug Interactions

Armodafinil can affect the metabolism of other medicines and may interact with several classes of drugs.

Patients should tell their healthcare professional about all prescription medicines, non-prescription medicines, supplements and hormonal contraceptives they use.

Particular attention may be required for medicines metabolized through CYP pathways and for hormonal contraceptives because armodafinil can reduce the effectiveness of steroidal contraceptives. A healthcare professional should review the complete medication list before treatment.