Post: How Long Does Provigil Last, and When Does it Peak?

How long it takes to kick in

Peak effects

How long it works

How long it’s in your system

Provigil (modafinil) typically starts to work 30 to 60 minutes after you take a dose. The drug’s effects peak about 2 to 5 hours later. Provigil’s effects may continue for up to 11 hours or more. Galina Zhigalova/Getty Images How long does it take for Provigil to start working?

Provigil comes as an oral tablet and is available in two strengths: 100 milligrams (mg) and 200 mg. The typical dosage when prescribed for obstructive sleep apnea or narcolepsy is 200 mg per day taken in the morning. When prescribed for shift work sleep disorder , the usual dose of Provigil is 200 mg taken once about an hour before your shift begins.

How long it takes for Provigil to start working varies by person and can be influenced by factors like your diet and other health conditions you have. But, in general, Provigil usually starts working about 30 to 60 minutes after you take a dose. When do the effects of Provigil peak?

Provigil peaks in your bloodstream 2 to 4 hours after you take a dose. This can be delayed by about an hour if you take your dose with food. How long does Provigil work?

When taken in the morning, Provigil has been shown to improve wakefulness until mid-afternoon. Another study showed that modafinil (the active ingredient in Provigil) helped with alertness for approximately 11.5 hours. It also showed the drug had far fewer side effects than other drugs taken to help with alertness, such as amphetamines and caffeine.Provigil has a half-life of approximately 15 hours. (This is the length of time it takes for your body to get rid of half of the amount of a drug.) If you have liver problems or kidney problems , it may take a lot longer for the drug to be cleared from your system. Because of this, the half-life is longer and your doctor will likely prescribe a lower dose than 200 mg per […]

How Long Does Provigil Last, and When Does it Peak?