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Modafinal Dosage

Find everything you need to know about Modafinil dosage for adults, teenagers, and children right here.

Adults and Teenagers over 17 years old

The standard Modafinil dosage for adults and teenagers over 17 years old is 200mg of Modafinil a day.

Because the effects of Modafinil last for about 10-12 hours, it is recommended to take it in the morning or at the beginning of your period of wakefulness.

Expect the peak effect to be felt about 2-3 hours after your dose, and expect the effects to begin to wear off about 10-12 hours after taking the medication.

The maximum recommended dose for Modafinil is 400mg per day. However, there have been no reports of death from modafinil, even when people have been administered 8,000 mg (40x the recommended dose).

If you experience any side effects, please discontinue the medication and consult your doctor.


Modafinil has been tested in children as young as 6 years old, particularly for the treatment of ADHD. It is considered safe and no serious adverse effects have been recorded.

However, please consult a doctor or healthcare professional before giving Modafinil to a child.

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