Modafinil

Modafinil is a medication used to promote wakefulness. It is often prescribed for conditions that cause excessive sleepiness.

This medication may be helpful for individuals who have difficulty staying awake during the day due to certain medical conditions.

Information about Modafinil

Modafinil Uses

Modafinil is commonly used in the management of sleep-related disorders. It helps in maintaining alertness and reducing the tendency to fall asleep.

  • Narcolepsy
  • Obstructive sleep apnea
  • Shift work sleep disorder

How Modafinil Works

Modafinil works by altering the natural chemicals (neurotransmitters) in the brain.

It is thought to increase the amount of dopamine, a neurotransmitter that promotes wakefulness.

By influencing these brain chemicals, Modafinil helps improve alertness and reduce excessive sleepiness.

Common side effects of Modafinil

Not everyone experiences side effects with Modafinil, and many side effects are mild and temporary.

  • Headache
  • Nausea
  • Dizziness
  • Insomnia
  • Anxiety
  • Dry mouth

If you experience serious or persistent symptoms, it is important to contact your doctor.

CONTENT DETAILS

Written By
Douglas C. Goldberg, MD
Reviewed By
Philip Schein, MD
Last updated
28 Nov 2025 | 03:00 PM (UTC)

Medicine brands for Modafinil

  • Vilafinil
    Dosage: 200 mg
    from $52.006 variant(s)
  • Modalert
    Dosage: 100mg, 200mg
    from $38.0014 variant(s)
  • Modawake
    Dosage: 200-mg
    from $60.004 variant(s)
  • Modvigil
    Dosage: 200 mg
    from $49.006 variant(s)
  • Provigil
    Dosage: 100mg, 200mg
    from $38.0014 variant(s)
  • Modafil MD
    Dosage: 200-mg
    from $30.007 variant(s)
  • Modafresh
    Dosage: 200 mg
    from $49.006 variant(s)
  • Modaheal
    Dosage: 200 mg
    from $52.006 variant(s)

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Expert advice for Modafinil

  • Monitor for any unusual changes in mood or behavior.
  • Avoid consuming large amounts of alcohol while taking this medication.
  • Do not drive or operate heavy machinery until you know how Modafinil affects you.
  • Inform your doctor of any other medications you are taking to avoid interactions.
  • If you experience chest pain or an irregular heartbeat, seek medical attention immediately.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

What is Modafinil used for?

Modafinil is used to promote wakefulness in conditions like narcolepsy, obstructive sleep apnea, and shift work sleep disorder.

How does Modafinil work?

Modafinil works by affecting neurotransmitters in the brain, helping to increase alertness and reduce sleepiness.

Can I drink alcohol while taking Modafinil?

It is best to avoid large amounts of alcohol while taking Modafinil as it may increase the risk of side effects.

How long does it take for Modafinil to work?

The effects of Modafinil can usually be felt within a few hours of taking the medication.

Are there any long-term side effects of Modafinil?

Long-term side effects are rare, but it’s important to discuss any concerns with your doctor.

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