Buy Modalert

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Instructions for use Modalert



Other names: 2-Diphenylmethyl-Sulfinyl-Acetamid

Bioavailability: varies

ATC-Code: N06BA07

Protein binding: ≥ 60%

Metabolism: Liver


Half-life: 15 hours

Excretion: Urine

CAS number: 68693-11-8

PubChem-CID: 4236

Drug Bank: DB00745

ChemSpider: 4088


KEGG: D01832

ChEBI: CHEBI:31859


ECHA-InfoCard: 100.168.719

Formula: C15H15NO2S

Molar mass: 273,35 g·mol−1

How does it work?

The exact mechanism of action is not yet fully known. Modalert is thought to inhibit dopamine reuptake. Presumably, the mode of action consists in promoting alertness and attention and increasing motor activity.

How is it used?

Modalert tablets should be swallowed whole with water. The recommended dose for adults is 200 mg per day. The daily dose can be taken all at once (in the morning) or divided into two doses (100 mg in the morning and 100 mg in the afternoon). In some cases, the daily dose can be increased to 400 mg by the doctor.

For elderly patients (over 65 years), the daily dose is 100 mg .

For severe kidney and liver problems , the daily dose is 100 mg . The treatment should therefore be carried out under medical supervision.

Side effects





Chest pain

Dry mouth

loss of appetite

ADHS Symptome



Pulse acceleration


Warnings and Precautions

Drug abuse

Tolerance development

Be careful if you have heart disease

Mood swings and depression

Beware of kidney problems

Beware of the liver problems

Other trade names

Vigil Modasomil Provigil Alertec Modafinil Modvigil


Hypersensitivity to the ingredients

Uncontrolled high blood pressure

Irregular heartbeat


Not safe


Alcohol consumption should be avoided

What happens if you miss the dose?

If you miss a dose, do not take twice as much the next time, but take it as described in the dosage instructions or as instructed by your doctor


If you suspect an overdose, contact a doctor immediately.


There is a risk of significant interactions. Therefore, medical supervision is recommended.

Unwanted reactions





Food does not affect the effects of the drug.


Keep this medicine out of the sight and reach of children.

This medicinal product does not require special storage conditions.

Frequently Asked Questions

What is Modalert?

Modafinil is a generic form of modafinil and is used to treat narcolepsy.

How long does Modalert work?

The duration of action varies from patient to patient and is between 12 and 24 hours.

Can I take Modalert whenever I feel tired?

No, because repeated use can cause an overdose.

Where can I buy Modalert?

Modafinil preparations can be found in stationary pharmacies under various trade names. Only in online pharmacies you can buy modafinil as commercial preparation Modalert.

Is Modalert subject to the Narcotics Act (BtMG) in Germany?

No, because modafinil-containing drugs require a prescription and will be exempt from the BtM obligation from 2008.

What is Modalert?

Modalert is the world's most popular generic modafinil. This drug is manufactured by a major pharmaceutical company Sun Pharmaceuticals Industries. It contains modafinil as an active substance that belongs to the group of psychostimulants.

Medically, Modalert is used to treat excessive sleepiness associated with narcolepsy. It reduces fatigue and the number of sleep attacks. However, its approval for the treatment of sleep apnea was withdrawn in Germany in 2011 due to an unfavorable benefit-risk assessment.

It is used off-label to get rid of chronic fatigue syndrome and to treat depression. It is also considered to improve cognition, concentration and memory.

Please note that the EMA recommends that the drug should only be used against narcolepsy.

The most important information about the effect:

  1. Modalert 200 mg is a cognitive function booster, excessive sleepiness.
  2. The active ingredient in Modalert Modafinil is known as a stimulant. This ingredient helps with excessive drowsiness due to sleep problems such as narcolepsy (sleeping sickness) and obstructive sleep apnea.
  3. Modalert has been clinically proven to be beneficial as an add-on therapy for bipolar and unipolar depression.
  4. The effect lasts about 15 hours.
  5. Modalert 200 mg not only helps get rid of excessive daytime sleepiness but also promotes memory and alertness.

What dosages can you buy Modalert in?

Modalert is produced by Sun Pharmaceuticals in 3 dosages: 100 mg, 200 mg and 400 mg.

The most popular potency is 200 mg. In most cases you can only buy Modalert in this dosage. In some cases, an increase in the daily dose of the drug is required, and for this purpose the company manufactures Modalert in the 400mg dosage. 100 milligrams is an optimal potency for those patients starting treatment with this drug.

Warning against misuse as a smart drug, doping agent and party drug

Caution should be exercised while taking Modalert as it can be abused. It is popular as a performance enhancer. It is widely used by disco-goers as a stimulant because it keeps you awake. In exams and executives, it is often taken as a "neuroenhancer" to promote mental performance. Therefore, the active substance Modafinil is on the doping list.

A bit of statistics . A study was carried out in which 147 students at the Jade University in Lower Saxony were questioned. 2 percent of students use modafinil-containing drugs. In over 50 percent of the cases, the administration took place during the exams and in 25 percent of the cases in stressful situations. For brain doping, Modalert is mainly used by male students.

What must be considered when taking?

Modalert is considered to be well tolerated, but it can often lead to restlessness, headaches, insomnia, anxiety, increased heart rate and increased sweating. The drug should be taken for a short time, otherwise there is a risk of dependency. There is also a risk of developing tolerance to modafinil. The overdose can lead to side effects.

Before taking Modalert during pregnancy, one should consult a doctor as these pills can harm the fetus.

It is unclear whether the medicine passes into breast milk. Therefore, you should seek advice from your doctor before using this medicine.

Alcohol consumption is discouraged during therapy. Like other drugs, Modalern can cause interactions when given at the same time as certain drugs. Modalern interacts with these drugs:

  • hormonal contraceptives (including birth control pills, hormone sticks, intrauterine devices and patches). While taking modafinil and for two months after treatment, you need to consider other birth control methods because modafinil reduces their effectiveness
  • HIV medications (HIV protease inhibitors, such as indinavir or ritonavir)
  • omeprazole
  • ciclosporin
  • Anticonvulsants (eg, carbamazepine, phenobarbital, or phenytoin)
  • tricyclic antidepressants (such as amitriptyline, citalopram, or fluoxetine)
  • Benzodiazepines (e.g. diazepam)
  • blood thinners (such as warfarin)
  • Anti-asthmatic drugs (e.g. theophylline)
  • Calcium channel blockers or beta-blockers for high blood pressure or heart problems (such as amlodipine, verapamil, or propranalol)
  • Statins to lower cholesterol (such as atorvastatin or simvastatin)
  • Immunosuppressants (cyclosporine)

If you have heart problems or high blood pressure, caution is advised.

Depression, anxiety, psychosis, mania, or bipolar disorder, even with a history, is made worse by taking Modalert.

Dose adjustment is required if you have kidney or liver problems.

Modalert is not suitable for patients suffering from an addictive disorder. Inform about the alcohol or drug problems, also in the history.


  1. Mutschler, E.: Drug Effects, Scientific Publishing Company Stuttgart, 10th edition, 2013
  2. Modafinil
  3. (2011): Brain doping – Percentage of substances used by students by gender in 2011.
Mary Jackson
Master student
She studies medicine at the Institute for Translational Immunology (TIM). Since 2021 freelance author at Compharms.

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1 Review(s)

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I take Modalert for narcolepsy. Thanks to Modafinil I don't feel tired at all and feel totally energetic during the day. I have had no side effects other than a slight headache.


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