Modafinil Overdose: Is it Possible?

A standard Modafinil dose ranges from 100–400 mg per day. It’s a pharmaceutical drug with a robust set of benefits.

There are reports of people taking the drug in higher doses to get stronger effects, and for its ability to produce a euphoric high.


In this article, we discuss overdosing on modafinil, what it feels like, and what dosages run the risk of causing it.

The Normal Modafinil Dose

Officially, modafinil is used for treating narcolepsy.

Unofficially, modafinil is used as a cognitive enhancer and for treating symptoms of ADHD.

When doctors prescribe the drug, they usually give it in doses of 100 or 200 mg.

The maximum dose a doctor would prescribe is 400 mg per day.

The recommended dose depends on the reason for taking it, as well as the weight of the person.

Due to the long duration of effects (~15 hours), only one dose of modafinil is prescribed each day, preferably first thing in the morning.

A similar product, Armodafinil (such as Modvigil or Artvigil), is considered slightly stronger and is usually given in doses of around 150 mg each day.