Artvigil

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What Is Artvigil 150 mg?

Artvigil 150 mg is een oraal armodafinil 150 mg tablet van HAB Pharma, supplied in pack sizes of 30 / 60 / 90 / 200 / 400 / 800 tablets. Armodafinil is a wakefulness-promoting agent first approved by the FDA in 2007 (brand Nuvigil) as the pure R-enantiomer form of modafinil. Approved indications are identical to modafinil: narcolepsy, shift-work sleep disorder, and residual sleepiness in treated OSA.

Armodafinil is the pure R-enantiomer of modafinil. Racemic modafinil is a 50/50 mixture of R- and S-modafinil; the R-enantiomer has a half-life of approximately 15 hours and drives most of the clinical wakefulness effect, while the S-enantiomer clears in 3-4 hours and contributes to the early “first-hit” peak that some patients experience on racemic modafinil. By removing the S-enantiomer, armodafinil gives a cleaner, smoother, longer-duration wakefulness effect than modafinil at equivalent dose.

If you want sneller in (30-60 minutes) and are willing to accept a sharper early peak, see our Modvigil 200 mg page — the same HAB Pharma manufacturer, racemic modafinil rather than pure armodafinil.

How Does Armodafinil Work?

The precise wakefulness mechanism of armodafinil is not fully defined, but multi-system modulation is now well characterised:

• Weak dopamine transporter (DAT) inhibition — armodafinil binds to DAT with relatively low affinity compared to classical stimulants (amphetamine, methylphenidate). This raises extracellular dopamine modestly in the nucleus accumbens, striatum and prefrontal cortex. The weaker binding is what gives armodafinil its much lower abuse liability than amphetamines.
• Histaminergic activation — armodafinil activates the tuberomammillary nucleus (the brain’s histamine-producing centre), increasing histamine release in the hypothalamus and cortex. Histamine is a key wake-promoting neurotransmitter, and this pathway is central to the sustained-wakefulness effect.
• Orexin/hypocretin system stimulation — armodafinil activates orexin-releasing neurons in the lateral hypothalamus. Orexin deficiency is the underlying cause of type 1 narcolepsy; armodafinil partly compensates for this deficit.
• Noradrenergic effect — modest inhibition of the norepinephrine transporter in the ventrolateral preoptic nucleus, supporting arousal.
• Selective for wake circuits, not reward circuits — unlike amphetamine-class stimulants, armodafinil does not produce significant euphoria or reinforcement in most users at therapeutic doses. This selectivity is the basis of its Schedule IV (rather than Schedule II) classification.
• Metabolism — hepatic, primarily via CYP3A4 and minor CYP2C19 pathways. Armodafinil is itself a CYP3A4 inducer (this is the mechanism behind the contraceptive interaction) and a weak CYP2C19 inhibitor.
• Renal excretion — primarily as inactive metabolites; <10% unchanged drug.

Armodafinil does not reduce the biological need for sleep. It suppresses the subjective experience of sleepiness during its duration of action, but sleep debt accumulates normally. Chronic use without sufficient night-time sleep (7-8 hours for most adults) is harmful and will eventually manifest as cognitive, immune, cardiovascular and metabolic deterioration.

When Artvigil Is Used

FDA-approved indications

• Narcolepsy — the primary FDA-approved indication. Artvigil reduces excessive daytime sleepiness, improves alertness on objective (Maintenance of Wakefulness Test, MWT) and subjective (Epworth Sleepiness Scale) measures. Does niet treat cataplexy; for narcolepsy with cataplexy, Artvigil is combined with sodium oxybate, pitolisant or SSRIs.
• Shift-work sleep disorder (SWSD) — excessive sleepiness during the night-shift work period. Artvigil is FDA-approved for SWSD; dose is taken 1 hour before shift start.
• Residual sleepiness in treated obstructive sleep apnea — for patients adherent to CPAP/BiPAP with persistent excessive daytime sleepiness despite optimal airway treatment. Artvigil is an adjunct, NOT a replacement for CPAP.

Off-label clinical uses

• ADHD — some randomised trials support armodafinil for adult ADHD. Not FDA-approved for this indication in adults or children, and paediatric use has been specifically cautioned against by the FDA after SJS case reports in children.
• Multiple sclerosis fatigue — some evidence of benefit; often used off-label in specialist MS clinics.
• Depression augmentation — small controlled trials support addition of armodafinil to antidepressants in treatment-resistant depression with prominent fatigue.
• Cancer-related fatigue, chemotherapy fatigue — modest benefit in specialist oncology settings.
• Parkinson’s disease daytime sleepiness — used specifically for Parkinson’s-associated EDS.
• Jet lag and long-haul flight fatigue — occasional short-term use; not a routine or primary indication.

Uses that are NOT appropriate

Artvigil is niet appropriate for:

• Simple tiredness or fatigue without an underlying sleep disorder diagnosis. Proper sleep hygiene, adequate night-time sleep, and evaluation of underlying cause (anaemia, thyroid disease, depression, sleep apnea) come first.
• General “cognitive enhancement” or study aid in healthy people without a sleep or ADHD diagnosis. While popular in this use pattern, it is off-label, unmonitored, and carries real (if rare) risks including SJS, psychiatric reactions, and dependence with daily long-term use.
• Substitute for adequate sleep — does not replace the biological recovery functions of sleep.
• Paediatric sleep disorders — use in children is not FDA-approved and is specifically cautioned against due to SJS case reports.
• Gewichtsverlies — despite mild appetite-suppressant effects in some users, this is not an appropriate indication.

Artvigil Dose and How to Take

Standard dosing

• Narcolepsy or residual OSA sleepiness: 150 mg once daily in the morning, taken on an empty stomach or with a light breakfast.
• Shift-work sleep disorder: 150 mg taken approximately 1 hour before the start of the night shift.
• Elderly patients (>65 years): consider starting at half dose (75 mg, though only 150 mg tablets are supplied — use alternate-day dosing or split if needed).
• Ernstige leverfunctiestoornis: reduce dose by 50% (75 mg equivalent).
• Severe renal impairment: dose-adjustment not formally established; use with caution and monitor closely.

Higher doses and titration

150 mg of armodafinil is approximately equivalent to 200 mg of modafinil in wakefulness effect, but with a smoother time-profile (longer duration, lower early peak). Some patients with severe narcolepsy or SWSD respond adequately only to 250 mg daily — this has been shown in controlled trials to be non-superior on average but can benefit individual patients. Splitting the dose (morning + midday) is preferred over a single larger morning dose because it reduces risk of evening sleep disruption.

Timing rules

• Take in the morning — armodafinil taken after 9 AM commonly interferes with sleep that same evening. Take as early as practical after waking.
• Do not take late in the day even if you plan to stay up. Sleep debt accumulates whether you are aware of it or not.
• In te nemen met of zonder voedsel — food delays onset by 1-2 hours but does not reduce total exposure. Fasting gives a faster onset.
• Do not crush or split unless prescribed — these tablets are not scored for pharmacy-grade splitting. If a lower dose is needed, talk to your prescriber about the appropriate-strength tablet.
• Do not combine with other stimulants (amphetamines, methylphenidate, high-dose caffeine) without medical supervision — additive cardiovascular and psychiatric risks.

Duration of treatment

For narcolepsy, Artvigil is typically a long-term daily treatment, used indefinitely as clinically indicated. For SWSD, it is used while the shift-work pattern continues; no need to taper on stopping. For OSA, it is an adjunct to airway treatment; if the airway treatment normalises sleepiness, Artvigil can be discontinued. For off-label or episodic use, it should be used sparingly and only with medical supervision.

Bijwerkingen

Common (>5% of users)

• Hoofdpijn — the most common; usually mild, often responds to hydration and paracetamol
• Misselijkheid, mild gastrointestinal upset
• Insomnia or delayed sleep onset — if dosed too late
• Anxiety, jitteriness — particularly in the first week
• Duizeligheid
• Dry mouth, decreased appetite
• Rhinitis, pharyngitis — reported in clinical trials

Less common (1-5%)

• Palpitations, tachycardia, mild hypertension — monitor blood pressure, particularly if pre-existing cardiovascular disease
• Diarrhoea, dyspepsia
• Chest pain (non-cardiac, usually) — evaluate any persistent or exertional chest pain
• Back pain, musculoskeletal aches
• Paresthesie

Rare but serious — STOP immediately and seek urgent medical advice

• Severe skin reactions — Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), drug reaction with eosinophilia and systemic symptoms (DRESS). These are rare (estimated 1 in ~5,000 users) but can be fatal. Symptoms: any rash, fever, flu-like feeling, blistering, mucous membrane involvement (mouth, eyes, genitals). Stop the drug immediately and seek urgent medical attention for ANY rash — do not wait to see if it progresses. The FDA specifically warned against paediatric use because of paediatric SJS cases.
• Serious psychiatric reactions — mania, hypomania, psychosis, suicidal ideation, aggression. Higher risk in patients with history of bipolar disorder, psychosis, or prior similar reactions to stimulants.
• Angio-oedeem or anaphylaxis — rare.
• Ernstige cardiovasculaire gebeurtenissen (arrhythmia, MI) — rare at therapeutic doses; higher risk in pre-existing structural heart disease, severe hypertension, or in combination with other stimulants.

Contra-indicaties & waarschuwingen

• Known hypersensitivity to armodafinil, the other enantiomer (modafinil), or any excipient
• History of severe skin reaction (SJS, TEN, DRESS) with armodafinil or modafinil/armodafinil — absolute
• History of mania, psychosis, or severe bipolar disorder — relative contraindication; specialist decision
• Unstable angina, recent myocardial infarction, severe uncontrolled hypertension, severe left ventricular hypertrophy, mitral valve prolapse with stimulant-induced chest pain — avoid or specialist cardiology decision
• Pregnancy (Category C) — teratogenic in rodent studies; human case reports suggest increased risk of congenital heart defects and hypospadias. Vermijd tijdens zwangerschap. Effective non-hormonal contraception is mandatory during treatment and 1 month after the last dose (see below).
• Borstvoeding — limited data; excreted in rodent milk; generally avoided in breastfeeding
• Paediatric use — not FDA-approved; specifically cautioned because of paediatric SJS cases in the 2006-2007 post-marketing surveillance
• Ernstige leverfunctiestoornis — reduce dose by 50%
• History of substance use disorder, especially stimulants — use cautiously under monitoring; abuse liability is low but non-zero

Critical Interaction — Hormonal Contraceptives

Women of childbearing potential must use non-hormonal backup contraception during Artvigil treatment and for at least 1 month after the last dose (to allow for full clearance of CYP3A4 induction):

• Condoms (male or female) — simplest reliable backup
• Copper IUD (ParaGard, copper T) — non-hormonal, not affected by CYP3A4 induction
• Abstinence
• Surgical sterilisation (tubal ligation, vasectomy in the partner)

Hormonal contraceptives alone are NOT reliable on armodafinil. This interaction has caused real contraceptive failures and unplanned pregnancies; given the pregnancy risk of armodafinil itself, these are particularly high-stakes. If you develop pregnancy symptoms during treatment, test immediately.

Other Drug Interactions

Artvigil vs Other Armodafinil Brands

Artvigil is one of several branded generics of armodafinil 150 mg. All contain the same active pharmaceutical ingredient at the same strength; the practical differences are in manufacturer reputation, excipient profile, and price.

Because all armodafinil 150 mg tablets contain the same active, the clinical effect is identical. Individual reports of “this brand feels different from that brand” almost always reflect batch variation, excipient sensitivity, or expectation effect rather than pharmacological difference. If you have a verified hypersensitivity to a specific excipient, that is worth matching — otherwise, brand choice is a cost and supply-chain decision.

Armodafinil vs Modafinil — Which Should You Choose?

The pharmacological differences between armodafinil and modafinil are subtle; the two drugs are often interchangeable for the same clinical indication. Practical differences that guide the choice:

• Begin: armodafinil 1-2 hours; modafinil 30-60 minutes. If you need a fast wake-up, modafinil wins.
• Duration: armodafinil 12-15 hours of functional wakefulness; modafinil 10-12 hours. If you need long-duration alertness (double shift, long flight, extended study session), armodafinil wins.
• Peak profile: armodafinil has a smoother, more sustained feel; modafinil has a sharper initial peak. Anxiety-prone patients often prefer armodafinil.
• Equivalent dose: armodafinil 150 mg ≈ modafinil 200 mg for wakefulness magnitude.
• Evening sleep: armodafinil’s longer half-life means taking it too late in the morning (after 9-10 AM) can delay sleep onset. Patients whose workday ends late often prefer modafinil.
• Cost: armodafinil is typically modestly more expensive per tablet than modafinil; at equivalent dose the per-dose cost is similar.

Clinicians often start modafinil first; if the patient reports an early-afternoon “crash” or anxiety spike from the S-enantiomer peak, they switch to armodafinil. Some patients do well on either and rotate based on the day’s schedule.

Opslag en houdbaarheid

Store Artvigil below 25°C in the original blister pack or bottle, away from direct sunlight and humidity. Keep out of reach of children. Use before the printed expiry date.

Veelgestelde vragen

Is armodafinil addictive?

Armodafinil has a much lower abuse liability than classical stimulants (amphetamine, methylphenidate). This is why it is Schedule IV (rather than Schedule II) in the US. However, it is not zero — psychological dependence can develop with daily long-term use. Physical withdrawal on stopping is usually mild: rebound sleepiness, low energy, mild low mood for a few days. Patients with a history of stimulant abuse should use under specialist supervision.

Do I need a prescription for armodafinil?

Yes. Armodafinil is a specialist-supervised Schedule IV controlled substance in the US, the UK, most EU countries, Australia, Canada, and other major jurisdictions. You should have a diagnosis of narcolepsy, shift-work sleep disorder, residual OSA sleepiness, or another clinically indicated off-label condition, and a prescriber monitoring your treatment.

How long does armodafinil last?

Oral armodafinil has an onset of 1-2 hours after a fasting dose (longer with food), peak plasma concentration at 2-4 hours, and functional wakefulness effect of 12-15 hours for the 150 mg dose. Elimination half-life is approximately 15 hours (pure R-enantiomer). Taking the tablet too late in the morning can interfere with that evening’s sleep.

Does armodafinil work for ADHD?

Some randomised controlled trials support armodafinil as an alternative for adult ADHD, particularly in patients who cannot tolerate or have contraindications to classical stimulants. It is not FDA-approved for this use. In paediatric ADHD, armodafinil is specifically cautioned against because of the paediatric SJS case reports. If you are considering armodafinil for ADHD, have that conversation with a psychiatrist experienced in ADHD rather than using it off-label without supervision.

Does armodafinil help with depression?

Several small randomised trials have shown benefit when armodafinil is added to a standard antidepressant in patients with treatment-resistant depression that has prominent fatigue and daytime sleepiness. It is not a standalone antidepressant and should not replace first-line depression treatment. Specialist psychiatry supervision is appropriate for this off-label use.

Can I take armodafinil with coffee?

Moderate caffeine intake (1-2 cups of coffee) is generally compatible with armodafinil, but the two are additive for cardiovascular (tachycardia, palpitations) and psychiatric (anxiety, jitteriness) effects. If you feel jittery or anxious on armodafinil, reduce your caffeine intake before increasing the dose of armodafinil.

Will armodafinil make me feel high or euphoric?

Most users at therapeutic doses (150 mg) describe armodafinil as producing alertness and mental clarity without euphoria — very different from amphetamine-class stimulants. This is why it has relatively low abuse liability. At high supra-therapeutic doses or in susceptible individuals, mild mood elevation or anxiety can occur.

Can I stop Artvigil suddenly, or do I need to taper?

Armodafinil does not require a formal taper — it can be stopped directly without physical withdrawal syndrome. You may experience rebound sleepiness, fatigue and mild low mood for a few days to a week; this resolves without intervention. For patients on long-term daily treatment, a short taper over a few days can smooth the transition.

Can I drink alcohol on armodafinil?

Armodafinil does not interact directly with alcohol in the liver, but alcohol can mask or delay the normal drowsiness signals that tell you to stop drinking. The combination can produce a false sense of sobriety followed by a sudden increase in intoxication when armodafinil wears off. Avoid heavy alcohol use while on armodafinil; moderate social drinking (1-2 units on an occasion) is generally tolerated.

What happens if I take armodafinil with hormonal birth control?

Armodafinil reduces the effectiveness of combined oral contraceptives, progestogen-only pills, hormonal patches, vaginal rings, and hormonal IUDs via CYP3A4 induction. You need non-hormonal backup contraception (condoms, copper IUD, abstinence) during treatment and for 1 month after stopping. Given that armodafinil itself is pregnancy Category C, contraceptive failure is particularly high-stakes. Discuss with your prescriber before starting.

What should I do if I develop a rash on armodafinil?

Stop the drug immediately and seek urgent medical attention. Armodafinil has caused rare but severe and fatal Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and DRESS reactions. Early symptoms are any rash, fever, flu-like feeling, or mucous membrane involvement (mouth, eyes, genitals). Do not “wait and see”. This is the single most important safety rule for armodafinil.

Can I use Artvigil long-term?

For narcolepsy, yes — Artvigil is typically a long-term daily treatment. Many patients have been on it for 10-20+ years without tolerance or clinically significant long-term toxicity at therapeutic doses. For other indications, duration depends on the clinical condition (SWSD: as long as the shift pattern continues; OSA: until airway treatment normalises sleepiness; off-label uses: as directed).

How is Artvigil different from caffeine?

Caffeine is an adenosine A1/A2A antagonist that produces short-duration alertness (4-6 hours) with tolerance that develops quickly. Armodafinil acts through dopamine, histamine, orexin and norepinephrine pathways, produces much longer-duration wakefulness (12-15 hours), has minimal tolerance, and is dose-dependently effective for true sleep-disorder treatment. They are not interchangeable; armodafinil is a regulated medicine for diagnosed conditions, whereas caffeine is a dietary stimulant.

Where can I order Artvigil online?

You can order Artvigil 150 mg from MedsBase in pack sizes of 30 / 60 / 90 / 200 / 400 / 800 tablets. Orders ship worldwide with discreet packaging. Armodafinil is specialist-supervised in most jurisdictions; have your clinician’s diagnosis and treatment plan in place before ordering.

Gerelateerde producten op MedsBase

• Modvigil 200 mg (Modafinil) — racemic modafinil for faster onset

Bekijk het volledige Narcolepsy Treatment category for all wakefulness-promoting agents on MedsBase.

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