Nuvigil vs Provigil

Pricing, Differences and Why Generics Win

Nuvigil vs Provigil comes down to one enantiomer and a $30-per-pill price gap. Brand-name Provigil costs $30 to $63 per pill at US pharmacies (list price around $1,900 for 30 tablets). Nuvigil runs about $31 per pill. Generic equivalents of both start at $0.89. Same FDA-approved mechanism, same clinical efficacy in trials, same Schedule IV classification.

Compare Generic Prices →

Staff Pick Updated: February 2026 Fact Checked Personally Tested

Modafinil and armodafinil are prescription medications (Schedule IV) in most countries. Consult a physician before use. Check legal status →

The Bottom Line

Nuvigil (armodafinil) and Provigil (modafinil) are both FDA-approved wakefulness agents with near-identical safety profiles. Nuvigil's R-enantiomer maintains higher late-day plasma concentrations; Provigil offers a more natural afternoon taper. Neither is definitively stronger. Both are available as generics at 1 to 2% of brand-name cost, making the brand vs generic decision far more consequential than the Nuvigil vs Provigil one.

Nuvigil vs Provigil: Is One Actually Stronger?

Not stronger, different. I have used both extensively since 2014. Nuvigil (armodafinil 150mg) contains only the R-enantiomer of modafinil, which maintains higher plasma concentrations later in the day. Provigil (modafinil 200mg) contains both S and R enantiomers. Clinical trials show comparable efficacy for wakefulness promotion. The practical difference is duration profile, not potency.

What Switching Actually Feels Like (10+ Years of Use)

"I've been using modafinil since 2014 and switched to armodafinil for about six months in 2019. Most comparison articles are written by people who've never touched either pill. This isn't one of those."

Shane, BuyModa founder (BSc Health Promotion, Curtin University)

My mate Dave and I used to joke about the "3pm wall." That dead zone where modafinil starts tapering and you're reaching for coffee. Dave switched to Waklert (generic Nuvigil) first and wouldn't shut up about it.

So I tried it. Here's what I actually noticed.

The onset is subtler. Modalert hits me like a light switch around the 90-minute mark. Waklert creeps in. I'd be 45 minutes into work before realising I was locked in. No kick, just steady focus that appeared without announcement.

The late-day difference is real. On modafinil, I'd feel the S-enantiomer clearing around 2 to 3pm, like someone slowly turning down the volume. On armodafinil, that dip didn't happen. The focus held steady until around 7 to 8pm.

Sleep was harder to protect. That sustained effect cuts both ways. I'm a morning doser, 6:30am, no exceptions. On modafinil, I'm comfortably tired by 10:30pm. On armodafinil, I was still wired at 11pm unless I took it before 6am.

The headache profile was identical for me. Both give me a dull background headache if I don't drink enough water. I set a 2L daily minimum when on either one.

Why I switched back. Armodafinil is objectively better for long-haul days: 12-hour shifts, deadline crunches, travel days crossing time zones. But for my normal routine (up at 6, done by 5, sleep by 10:30), modafinil's natural taper is a feature, not a bug. I wanted my evenings back.

Dave still swears by Waklert. His work schedule is chaotic, rotating shifts at a logistics warehouse. For him, the sustained coverage is the entire point.

Recommendation: If you work standard hours (roughly 8am to 6pm), start with modafinil. If your schedule demands sustained alertness past 8pm, try armodafinil first. FreeModafinil includes samples of all four generics so you can test both without committing to a bulk order.

Note: Personal experiences vary significantly. Factors including body weight, liver enzyme activity (CYP3A4 variations), caffeine intake, and sleep debt all influence how you respond to either medication. Always consult a doctor before use.

The Real Cost: Brand vs Generic (2026 Pricing)

The price difference between brand-name and generic versions is the single most important factor for most people researching these medications.

Brand Provigil

$30 to $63/pill

List price approx $1,900 for 30 tabs

Brand Nuvigil

~$31/pill

~$920 for 30 tablets (150mg)

Indian Generics

$0.79 to $0.89/pill

Same active ingredients, WHO-GMP certified

Even at the lower end of retail pricing, brand-name Provigil costs 30 to 70 times more than Indian-manufactured generics containing the exact same active ingredient. US pharmacy generics with a discount card run $16 to $20 for 30 tablets, still a fraction of brand pricing.

Insurance Reality Check: Most plans require prior authorisation for both Provigil and Nuvigil. Many will only cover the generic version. If your copay for brand-name exceeds $30 to $50 per month, buying generics directly may be cheaper than using insurance.

How They Actually Differ: Pharmacology Breakdown

Provigil contains racemic modafinil, a 50:50 mix of S-modafinil and R-modafinil. Nuvigil contains only R-modafinil (armodafinil). That single difference drives everything else.

Feature	Nuvigil (Armodafinil)	Provigil (Modafinil)
Active ingredient	Armodafinil (R-enantiomer only)	Modafinil (R + S enantiomers)
Standard dose	150 to 250mg once daily	200mg once daily
Tmax (fasted)	~2 hours	2 to 4 hours
Terminal half-life	~15 hours	~15 hours (R-enantiomer)
Late-day plasma levels	Sustained, no S-enantiomer drop-off	Decline as S-enantiomer clears (~3 to 4h half-life)
FDA approval	June 2007 (narcolepsy, OSA, SWD)	December 1998 (narcolepsy); January 2004 (OSA, SWD)
DEA schedule	Schedule IV	Schedule IV
Brand cost (30 tabs)	~$31/pill (~$920 for 150mg)	$30 to $63/pill (~$1,900 list price)
Generic versions	Waklert, Artvigil	Modalert, Modvigil, Modafresh, Modaheal

The S-enantiomer in Provigil clears roughly three times faster than the R-enantiomer. By mid-afternoon, Provigil's effect profile starts resembling Nuvigil's anyway. The practical difference is most noticeable in the first 6 to 8 hours after dosing.

For a deeper dive, see our modafinil vs armodafinil guide, which covers the pharmacokinetic comparison independent of brand names.

How We Got Here: The Cephalon, Teva and Apotex Story

Understanding why generics exist and why they're trustworthy starts with the patent history. This directly explains why you can buy the same drug for $0.89 that once cost $63.

1994

Cephalon Inc. acquires modafinil rights from Lafon Laboratories (France), where modafinil was already approved as Modiodal.

December 1998

FDA approves Provigil (modafinil) for narcolepsy. Cephalon receives new chemical entity exclusivity until December 2005.

2003 to 2004

Four generic manufacturers file abbreviated new drug applications. FDA expands Provigil approval to obstructive sleep apnoea and shift work disorder.

June 2007

FDA approves Nuvigil (armodafinil). Cephalon's strategy: develop the single-enantiomer version before Provigil's patents expire, extending brand-name revenue.

2010

Provigil revenue peaks at $1.12 billion. Original composition patent expires.

2011

Teva Pharmaceutical Industries acquires Cephalon for $6.8 billion. Particle-size patent RE 37,516 declared invalid.

2012

Generic modafinil enters the US market. Brand-name Provigil revenue drops sharply.

2015

Final Provigil patent (US 5,618,845) expires. Teva pays $1.6 billion to settle FTC antitrust case over pay-for-delay generic agreements.

2016 to 2017

Generic armodafinil enters the US market. Both Provigil and Nuvigil equivalents now competitively priced.

January 2025

Apotex acquires US distribution rights for both Provigil and Nuvigil from Teva. Both brands now marketed under Apotex's ApoPharma label. Formulations unchanged.

Side Effects: What the FDA Data Shows

Both medications share near-identical safety profiles. The table below reflects placebo-controlled clinical trial data from the FDA prescribing information.

Side Effect	Nuvigil (Armodafinil)	Provigil (Modafinil)	Placebo
Headache	17%	34%	9% / 23%
Nausea	7%	11%	3% / 3%
Dizziness	5%	5%	2% / 4%
Insomnia	5%	5%	1% / 1%
Anxiety	4%	5%	1% / 1%

Nuvigil placebo rate / Provigil placebo rate shown. Different trial populations explain variation in placebo rates.

Contraceptive Warning: Both modafinil and armodafinil induce CYP3A4 enzymes, reducing the effectiveness of hormonal contraceptives (pills, patches, rings). Alternative or additional contraception is recommended during use and for one month after discontinuation.

Nuvigil vs Provigil: Which Should You Choose?

In practice the brand-name question is irrelevant for most buyers. You are choosing between armodafinil (generic Nuvigil) and modafinil (generic Provigil). Here is when each makes sense.

Choose Nuvigil Generics (Armodafinil) If:

You need steadier late-day wakefulness — R-enantiomer sustains longer

You work night shifts or irregular hours

You have developed tolerance to modafinil

You prefer a lower mg dose (150mg vs 200mg)

You need extended coverage beyond 12 hours

Choose Provigil Generics (Modafinil) If:

You want the most-studied wakefulness agent, 25+ years of data

You work standard daytime hours and want effects to taper by evening

You are a first-time user, broader dose flexibility (100 to 200mg)

You want the lowest per-pill cost (Modvigil from $0.79/pill)

You want maximum vendor and product selection

First-Time Buyer: Start with a sample order from FreeModafinil — they include free samples of Modalert, Modvigil, Waklert, and Artvigil with every order so you can compare all four generics without committing to a bulk purchase.

Is Nuvigil Similar to Adderall?

This PAA question comes up constantly. The answer matters because the drugs work through fundamentally different mechanisms and carry different risk profiles.

Nuvigil (armodafinil) and Adderall (amphetamine/dextroamphetamine) are both wakefulness-promoting agents, but the similarities stop there. Adderall directly releases dopamine and norepinephrine into the synapse. It is a Schedule II controlled substance, meaning the DEA classifies it with high abuse and dependence potential. Nuvigil primarily inhibits dopamine reuptake through a different pathway and is Schedule IV, with substantially lower abuse potential.

The subjective experience differs meaningfully. Adderall produces a stronger stimulant effect with noticeable mood elevation and appetite suppression. Nuvigil produces what most users describe as clean wakefulness without the intensity or the crash. You do not feel energised so much as you stop feeling tired.

Neither Nuvigil nor Provigil is FDA-approved for ADHD, though both are prescribed off-label. A 2024 literature review found evidence supporting armodafinil for adult ADHD. The trade-off versus Adderall: lower dependence risk but potentially less effective for core ADHD symptoms like impulsivity.

For the full breakdown, see our Adderall vs Modafinil comparison guide.

Does Nuvigil Give You Energy?

Not in the stimulant sense. Nuvigil promotes wakefulness rather than producing energy the way caffeine or amphetamines do. There is no rapid onset buzz, no noticeable heart rate increase, no jitteriness.

What Nuvigil does is remove the feeling of tiredness. Most users describe feeling normally awake rather than stimulated. The effect arrives gradually, typically 60 to 90 minutes after dosing, and is characterised by improved cognitive clarity, sustained attention, and an absence of the fatigue that would otherwise be present.

The R-enantiomer in Nuvigil maintains higher plasma concentrations later in the day than modafinil (Provigil), which means this wakefulness effect is more sustained rather than more intense. If you are looking for a stimulant high, Nuvigil will disappoint. If you are looking to stay sharp through a long day, it delivers.

Generic Equivalents: Your Options

Every generic below contains the same active ingredient as its brand-name counterpart, manufactured under WHO-GMP standards.

Generic	Equivalent To	Manufacturer	Active Ingredient	From
Waklert 150mg	Nuvigil	Sun Pharma ($6B+ revenue)	Armodafinil 150mg	$0.89/pill
Artvigil 150mg	Nuvigil	HAB Pharma (WHO-GMP)	Armodafinil 150mg	$0.79/pill
Modalert 200mg	Provigil	Sun Pharma ($6B+ revenue)	Modafinil 200mg	$0.89/pill
Modvigil 200mg	Provigil	HAB Pharma (WHO-GMP)	Modafinil 200mg	$0.79/pill

Where to Buy: Verified Vendors (2026)

Every vendor below has been tested with real orders. All ship generic Nuvigil and Provigil equivalents with delivery guarantees and discreet packaging.

Vendor	Ships To	Nuvigil Generics	Provigil Generics	Key Feature
FreeModafinil	Worldwide	Waklert, Artvigil	Modalert, Modvigil	Free samples included	Visit Store →
ModafinilXL	Worldwide	Waklert, Artvigil	Modalert, Modvigil, Modafresh	Largest selection	Visit Store →
ModafinilUSA	USA (Domestic USPS)	Artvigil	Modalert, Modvigil	US domestic shipping	Visit Store →
Modafinil.AU	Australia (AU Post)	Artvigil	Modalert, Modvigil	AU domestic shipping	Visit Store →
Afinil.EU	Europe (Domestic)	Artvigil	Modalert, Modvigil	EU domestic shipping	Visit Store →
HighStreetPharma	Worldwide	Waklert, Artvigil	Modalert, Modvigil	Wide product range	Visit Store →

Practical Dosing Tips

Start Low, Assess Response For modafinil, try 100mg (half a 200mg tablet) first. For armodafinil, 150mg is the standard starting dose. Give it 2 to 3 sessions before increasing.

Take Early — Both Have 15-Hour Half-Lives A 7am dose means half the drug is still active at 10pm. For shift work, take approximately 1 hour before your shift starts.

Food Delays Onset, Doesn't Reduce It Taking either drug with food delays peak plasma concentration by approximately 2 to 4 hours, but total absorption is unaffected.

Hydrate Aggressively Both drugs suppress thirst perception. Headache, the most common side effect, is often worsened by dehydration. Minimum 2 litres per day.

Nuvigil vs Provigil: Frequently Asked Questions

Is Nuvigil similar to Adderall?

Nuvigil (armodafinil) and Adderall (amphetamine) are both wakefulness-promoting agents but work through fundamentally different mechanisms. Adderall directly releases dopamine and norepinephrine and is Schedule II with significant dependence potential. Nuvigil primarily inhibits dopamine reuptake and is Schedule IV with a much lower abuse risk. The subjective experience also differs: Adderall produces a stronger stimulant effect; Nuvigil produces cleaner wakefulness without the same intensity or crash.

Does Nuvigil give you energy?

Nuvigil promotes wakefulness rather than energy in the stimulant sense. It does not produce the rapid onset buzz of caffeine or amphetamines. Instead it removes the feeling of tiredness and maintains mental alertness for 10 to 15 hours. Most users describe feeling normally awake rather than stimulated. The R-enantiomer in Nuvigil maintains higher plasma concentrations later in the day than modafinil, meaning its effect is more sustained rather than more intense.

Which is stronger, modafinil or armodafinil?

Neither is definitively stronger. Armodafinil (Nuvigil) contains only the R-enantiomer, which has a longer effective duration and maintains higher plasma concentrations later in the day. Modafinil (Provigil) contains both R and S enantiomers — the S-enantiomer clears faster, so effects taper more naturally in the afternoon. At standard doses (200mg modafinil vs 150mg armodafinil), both show comparable wakefulness promotion in clinical trials.

Is Nuvigil stronger than Provigil?

Not stronger — different. Nuvigil (armodafinil 150mg) contains only the R-enantiomer, which maintains higher plasma concentrations later in the day. Provigil (modafinil 200mg) contains both S and R enantiomers. Clinical trials show comparable efficacy for wakefulness promotion. The difference is in duration profile, not potency.

Why is brand-name Provigil so expensive?

Brand-name Provigil has a list price of approximately $1,900 for 30 tablets, though retail pricing varies from $30 to $63 per pill. Apotex (formerly Teva) maintains brand pricing despite generic availability since 2012. Generic modafinil at US pharmacies costs around $16 to $20 for 30 tablets with a discount card. Indian-manufactured generics like Modalert and Modvigil start from $0.89 per pill.

Does insurance cover Provigil or Nuvigil?

Most insurance plans require prior authorisation for both and typically cover generic modafinil or armodafinil rather than brand-name versions. Medicare Part D may cover generics after meeting the deductible. Many patients find purchasing generics directly is more affordable than insurance copays for brand-name drugs.

Who made Provigil and Nuvigil?

Both were developed by Cephalon Inc., which obtained modafinil rights from French company Lafon Laboratories. Cephalon launched Provigil in 1998 and Nuvigil in 2007. Teva Pharmaceutical acquired Cephalon in 2011 for $6.8 billion. In January 2025, Apotex acquired US distribution rights for both brands, now marketed under the ApoPharma label. Formulations remain unchanged.

Can I switch between Provigil and Nuvigil?

Yes, with your doctor's guidance. A common conversion is 200mg Provigil to 150mg Nuvigil. Both share the same mechanism of action, side effect profile, and drug interactions. Some patients switch to find which duration profile suits their schedule better. See our modafinil vs armodafinil comparison for more detail.

Do Provigil and Nuvigil affect birth control?

Yes. Both modafinil and armodafinil induce CYP3A4 enzymes, reducing the effectiveness of hormonal contraceptives including pills, patches, and rings. Alternative or additional contraception is recommended during treatment and for one month after stopping either medication.

What are the generic versions of Provigil and Nuvigil?

Generic Nuvigil (armodafinil 150mg): Waklert by Sun Pharma and Artvigil by HAB Pharma. Generic Provigil (modafinil 200mg): Modalert by Sun Pharma and Modvigil by HAB Pharma. All contain the same active ingredients and are manufactured under WHO-GMP standards.

Is Nuvigil being discontinued?

No. In January 2025, Apotex acquired US distribution rights for both Nuvigil and Provigil from Teva. Both brands are now marketed under the ApoPharma label, formulations unchanged. Generic armodafinil remains widely available from Sun Pharma (Waklert) and HAB Pharma (Artvigil).

Does Nuvigil help with ADHD?

Neither Nuvigil nor Provigil is FDA-approved for ADHD, but both are prescribed off-label. A 2024 literature review found evidence supporting armodafinil for adult ADHD. These medications carry a lower dependence risk (Schedule IV vs Schedule II) than traditional ADHD stimulants like Adderall but may be less effective for core symptoms like impulsivity. Talk to your doctor about whether off-label use is appropriate.

Why is there a lawsuit against Provigil?

The major Provigil lawsuit was an FTC antitrust case against Cephalon. The FTC alleged Cephalon paid generic manufacturers to delay launching generic modafinil, a practice known as pay-for-delay. These agreements kept cheaper generics off the market for years. Teva settled in 2015 for $1.6 billion. Generic modafinil has been available in the US since 2012, and generic armodafinil since 2016 to 2017.

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Sources

U.S. Food and Drug Administration. "Provigil (modafinil) Prescribing Information." Teva Pharmaceuticals USA, Inc., January 2015. FDA Label (PDF)
U.S. Food and Drug Administration. "Nuvigil (armodafinil) Prescribing Information." Teva Pharmaceuticals USA, Inc., February 2017. FDA Label (PDF)
Darwish M, Kirby M, Hellriegel ET, Robertson P Jr. "Armodafinil and modafinil have substantially different pharmacokinetic profiles despite having the same terminal half-lives." Clin Drug Investig. 2009;29(9):613-623. PubMed
Wong YN, et al. "A double-blind, placebo-controlled, ascending-dose evaluation of the pharmacokinetics and tolerability of modafinil tablets in healthy male volunteers." J Clin Pharmacol. 1999;39(1):30-40. PubMed
StatPearls. "Modafinil." National Center for Biotechnology Information, 2024. StatPearls
Drugs.com. "Provigil Prices, Coupons and Patient Assistance." Accessed February 2026. Drugs.com
Drugs.com. "Nuvigil Prices, Coupons and Patient Assistance." Accessed February 2026. Drugs.com

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Shane Hellmrich, BSc (Health Promotion, Curtin University)

Testing modafinil vendors since 2014. All vendor recommendations are based on real orders and verified delivery. Editorial standards →

Medical Disclaimer

This content is for informational purposes only and does not constitute medical advice. Provigil and Nuvigil are prescription medications (Schedule IV controlled substances). Always consult a qualified healthcare provider before use.

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BuyModa earns commissions from qualifying purchases through affiliate links on this page. This does not affect editorial recommendations or vendor ratings. All vendor reviews are based on independent testing. Full disclosure →