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Modavinil vs. Modvigil: Which Modafinil Drug to Choose?

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Modvigil and Modavinil are both products of modafinil that treat sleep disorders, increase concentration, promote wakefulness, and enhance cognition in healthy individuals. Produced in India by HAB Pharma, Modvigil has been described as a cheaper form of modafinil that is widely available online. On the other hand, Modavinil is a much recent form with slight modifications that may make it suitable for you.

Modavinil vs Modvigil

If you are buying any product, it is important to choose one that works best for you and get it from a reliable vendor. This guide will help you accomplish just that. Read on.

What Is Modavinil?

It’s unlikely that you’ve heard about this product before now, but that’s OK, as it is new. In fact, it could well be one of the most recent generic brands of modafinil available on the nootropic scene.

Modavinil is produced by Centurion Laboratories. Like the brand-name drug Provigil, it contains the 200 mg strength of modafinil – the active ingredient responsible for the wake-promoting effects. Thus, it proves just as effective when used to treat excessive daytime sleepiness caused by sleep disorders such as narcolepsy, shift work sleep disorder (SWSD), and obstructive sleep apnea (OSA) [1].

It may also be used off-label to increase concentration, boost memory, enhance learning, and ultimately increase productivity. Thus, artists, programmers, traders, analysts, engineers, students, and people from all walks of life may find it very helpful.

What Is Modvigil?

Modvigil is yet another modafinil-based drug. However, unlike Modavinil, it has been around for much longer. It is equally effective in treating narcolepsy, OSA, and SWSD, as well as in enhancing cognitive abilities.

Many people around the world with varying job descriptions take Modvigil to gain a competitive edge at their workplace not only because it is effective but also safe. Here are some of the benefits offered by this drug:

  • 10+ hours of laser-sharp focus;
  • increased motivation;
  • faster mental processing speed;
  • enhanced memory;
  • increased alertness.

This drug is generally safe and unlikely to cause serious discomfort if used correctly. It should only be used by individuals 17 years of age and older.

Compare Modavinil & Modvigil

Although Modavinil & Modvigil contain the same active ingredient and should be exactly the same, they have some differences.

Below is a table showing the similarities and differences between these drugs at a glance:

Brand Name Modavinil Modvigil
What active ingredient is contained in this drug? modafinil modafinil
What are the available strengths? 200 mg 100 mg and 200 mg
What is this drug used for? to treat sleep disorders such as narcolepsy and OSA and enhance cognitive function to treat sleep disorders such as narcolepsy and OSA and enhance cognitive function
What form is it available in? tablet tablet
What is the half-life of the drug? 10–12 hours 10+ hours
What is the average length of treatment? 42.3 days in patients with SWSD, 60 days in those with narcolepsy, and 65 days in patients with OSA 42.3 days in patients with SWSD, 60 days in those with narcolepsy, and 65 days in patients with OSA
Is there a risk of withdrawal symptoms? no no
How do I store this drug? at room temperature of 68°F to 77°F (20°C to 25°C) at room temperature of 68°F to 77°F (20°C to 25°C)
Is this a controlled substance? yes, in most countries yes, in most countries

Although these drugs contain the same active ingredient (as they are required to by law), they have different inactive ingredients. But this is nothing to worry about.

Generic drug manufacturers are bound by trade laws that require them to utilize the same active ingredient as the original drug and maintain the same strict standards during the manufacturing process. However, because the same laws prohibit them from producing a generic that looks exactly like the brand-name drug physically, they’re given liberty to alter the inactive ingredients.

But inactive ingredients do not affect the pharmacological effects of drugs; they only help to stabilize the meds and influence the physical features such as the size, color, and taste of the tablet. Thus, although Modavinil and Modvigil look different, they offer the same benefits [2][3].

However, it’s possible that users might experience different side effects even though the drugs have the same pharmacological effects. This is due to the inactive ingredients. Some people are allergic to certain ingredients and may experience discomfort after ingesting them [4]. This is why it is important to always look through the patient information leaflet to make sure you don’t have a problem with taking any of the ingredients.

Where to Buy Generics of Modafinil Over-the-Counter?

Modafinil and modafinil-based drugs are legal in most countries. However, because they’re controlled, a prescription is typically required to buy them. Getting a prescription is no easy task. It often involves booking an appointment and visiting a sleep specialist who may conduct a sleep study to determine if you suffer from narcolepsy or any of the other conditions the drug is approved by the Food and Drug Administration (FDA) to treat.

Buy Pills Online

Many patients with a sleep disorder, as well as healthy individuals (who don’t qualify for a prescription), dislike following this process because of the time, energy, and money it takes.

But how do they get the drugs?

Well, they buy them through online nootropic vendors who do not ask for prescriptions before selling. However, while getting the pills via this route is as easy as falling asleep without modafinil, it can be risky. There are many fake online vendors, and unless they come highly recommended or you discover them through personal findings, you may end up paying for counterfeit pills that may be detrimental to your health.

If you, like many nootropic buyers, dislike stress and would rather buy online but don’t know any vendor you can trust, don’t worry! We’ve compiled a list of some of the best e-pharmacies you can bank on to deliver high-quality generics of modafinil over the counter. Here they are:

To make our selection, we checked scores of vendors against a list of indicators that are synonymous with trustworthy and reliable drugstores, and only the 7 stores you see here made it.

Below is a table showing the key indicators we based our selection on:

Online Pharmacies Genuine Refund Policy Flexible Payment Options

(Credit Card & Bitcoin)

Fast Shipping Customer Service Free Samples

for New Customers ✔️ Visa, AmEx, MasterCard, PayPal, e-Check, Bitcoin, and other cryptocurrencies Ultra-fast ✔️✔️✔️ ✔️ ✔️ MasterCard, AmEx, PayPal, Zelle, e-Check, Bitcoin, ETH, and other cryptocurrencies Ultra-fast ✔️✔️✔️ ✔️ ✔️ MasterCard, AmEx, Zelle, BPay (Australia), PayID (Australia), SWIFT wire transfers, PP, and Bitcoin Ultra-fast ✔️✔️ ✔️ MasterCard, Visa, AmEx, PayPal, Zelle, e-Check, Bitcoin, ETH, and several other cryptocurrencies Fast ✔️✔️✔️ ✔️ ✔️ Credit/debit cards, PayPal, crypto, e-Check, and gift cards Fast ✔️✔️ ✔️ MasterCard, AmEx, PayPal, Zelle, e-Check, ETH, Bitcoin, and other cryptocurrencies Fast ✔️✔️✔️ ✔️ ✔️ Credit/debit cards (Visa, MasterCard, & more), Bitcoin, JCB, US Bank Bill Pay, Zelle, e-Check, IBAN, SEPA, PayID, and BPay Ultra-fast ✔️✔️

As indicated above, some of these vendors offer free samples so that people looking to buy from them for the first time can do a test run without paying for the drug. Intending buyers need only take care of the shipping fee.

Based on the refund policy, these vendors provide a full refund or reship parcels if they fail to deliver to the customer. But there are rules to these, and you can find them on the shipping section of the individual sites. For instance, a customer may not get a refund if they accidentally indicate a wrong shipping address.

In case you’re wondering whether you may be indicted for buying either of these drugs online, the short answer is no! No one has ever been prosecuted for buying any modafinil-based medication online. These vendors typically ship products from countries with lenient laws surrounding the drugs in professional ways that get them across to the buyer without issues.

Before making a purchase from any of these stores, you can make a comparison between the discounts and bonuses to determine which one will get you the best value for your money.

Dosage Guide for Modvigil vs Modavinil

The standard dosage of Modvigil and Modavinil is 200 mg to be taken with a full glass of water. The time of administration may vary based on the condition looking to be treated. For SWSD, 1 tablet is to be taken about an hour before the start of a work shift. On the other hand, for narcolepsy and OSA, 1 tablet is to be taken early in the morning. Note that taking the drug late in the day may make sleeping at night challenging.

For Modvigil, which is also available in the 100 mg dose, it is advisable to start with a lower dose to watch your response before proceeding to take the 200 mg dose.

No more than 1 dose is to be taken within 24 hours. Overdosing on these drugs may lead to overstimulation and ultimately increase the risk of side effects. Consult your doctor for medical advice before starting treatment with any of these drugs. Both Modvigil and Modavinil can be taken with or without food.

What Are the Side Effects?

Because both drugs are generic versions of modafinil, they have similar side effects. However, due to the different inactive ingredients contained in them, one or more side effects may be more common in Modavinil vs. Modvigil.

Side Effects

The common adverse effects are as follows [5]:

  • stomach ache or nausea;
  • stuffy or runny nose;
  • diarrhea;
  • insomnia;
  • headache;
  • dizziness;
  • dry mouth.

Note that these side effects may occur in varying intensities for different users. Fortunately, they are typically mild and disappear within a short while without any medical attention.

On very rare occasions, more severe side effects such as rash, trouble breathing, chest pain, and irregular heartbeat may occur. If you experience any of these extreme conditions or if side effects persist, seek urgent medical attention.

Are Modavinil & Modvigil Interactions Different?

For the most part, these drugs have similar interactions. This is because they contain the same active ingredient, which is modafinil. They may interact with certain foods, beverages, herbs, supplements, and other drugs. Find details about possible interactions below.


Alcohol is known to interact negatively with modafinil and thus should be avoided. Taking it shortly before, after, or alongside Modavinil, Modvigil, or any other drug that contains modafinil could cause drowsiness or a blackout or decrease its effectiveness.


Minor interactions may occur with certain foods. For example, fatty foods can delay modafinil’s onset of effects, as well as prolong its duration of action. However, both drugs can be administered with or without food. Patients are allowed to explore what works better for them when it comes to taking the drug with food.

Other Drugs

Modafinil has been found to interact with allergy drugs like montelukast/Singulair and hormone medications. Other meds you shouldn’t take with Modavinil, Modvigil, or any other modafinil-based nootropic are the following [6]:

  • blood thinners, or anticoagulants (warfarin/Coumadin);
  • antifungals (ketoconazole/Nizoral and itraconazole/Sporanox);
  • tricyclic antidepressants (amoxapine/Asendin, trimipramine/Surmontil, imipramine/Tofranil, protriptyline/Vivactil, etc.);
  • certain seizure medications (phenytoin/Dilantin, carbamazepine/Tegretol, clonazepam/Klonopin, etc.);
  • monoamine oxidase (MAO) inhibitors (phenelzine/Nardil, isocarboxazid/Marplan, etc.);
  • selective serotonin reuptake inhibitors (SSRIs) – escitalopram/Lexapro, sertraline/Zoloft, fluoxetine/Prozac, citalopram/Celexa, etc.

If you are taking any of these drugs or any prescription meds, it is best to consult your doctor before starting your dose of Modavinil or Modvigil.

Note that this isn’t a comprehensive list of all the drugs that could cause interactions. Consult the patient information leaflet and your doctor for a detailed list.

Are These Nootropics Addictive?

Nootropics like Modavinil and Modvigil that contain modafinil aren’t addictive per se, but they can be habit-forming if taken more often or in large doses over a long period [6]. This is why it is important to strictly adhere to the doctor’s recommendation for use.

Consultation with a Doctor

In an interview with WebMD, David Weinshenker, an associate professor of human genetics at Emory University, stated that modafinil has zero street value. This means that there are no modafinil addicts buying and selling it on the streets, as with addictive stimulant drugs like cocaine and methamphetamine, among others [7].

Compared to most other nootropics, modafinil and modafinil-based drugs have low potential for addiction. This is why researchers at the University of Oxford and Harvard University deemed it “the world’s first safe ‘smart drug’” [8].

Modvigil vs Modavinil: Which Is Better?

Wondering which is better between Modvigil and Modavinil? There’s really no one better, as both products consist of the same active ingredient. However, this does not eliminate the fact that some people may find that one product provides them with better results than the other. The differences in biological makeup may be held to account for this. This is to say that you may not achieve the same results that your friend does even while using the same product.

Most “smart drug” enthusiasts get to discover what works best for them by trying out multiple brands. While this can ordinarily be expensive, taking advantage of e-pharmacies such as ModafinilXL, among others, that offer free trial samples can help cut costs.

Always consult a doctor before taking any drug.


  1. Provigil (Modafinil): Uses, Dosage, Side Effects, Interactions, Warning. Retrieved: July 15, 2021.
  2. Difference Between Brand Name and Generic Drugs. By Rose Medical. Retrieved: July 15, 2021.
  3. Generic Drug Facts. Retrieved: July 15, 2021.
  4. Are ‘Inactive’ Drug Ingredients Really Harmless? By Steven Reinberg. Retrieved: July 15, 2021.
  5. Common and Rare Side Effects for Modafinil Oral. Retrieved: July 15, 2021.
  6. Modafinil: MedlinePlus Drug Information. Retrieved: July 15, 2021.
  7. Is Provigil Addictive? By Daniel J. DeNoon. Medically reviewed by Louise Chang, MD. Retrieved: July 15, 2021.
  8. Narcolepsy Medication Modafinil Is the World’s First Safe ‘Smart Drug.” By Helen Thomson. Retrieved: July 15, 2021.