Strattera starts to work after the first dose, but it may take 4 to 8 weeks for you to see an improvement in ADHD symptoms.

Strattera is a prescription drug used to treat attention deficit hyperactivity disorder (ADHD) in adults and certain children.

Symptoms of ADHD can include being easily distracted, having trouble concentrating, and having difficulty sitting still.

Read on to learn more about how long Strattera takes to help reduce ADHD symptoms, how to know that the drug is working, and more.

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Strattera starts to work in your body on the first day you take it, but it will take time for you to see a change in ADHD symptoms. According to the National Alliance on Mental Illness, it typically takes 4 to 8 weeks for people to see an improvement in ADHD symptoms when taking Strattera.

In the drug’s studies, Strattera was shown to be effective for ADHD at 6, 8, or 9 weeks. But many people began to notice symptom improvement within 4 weeks.

According to a small study included in a 2015 review, in children ages 6 to 18 years, the median response to treatment was 23 days. This means that half of the children noticed symptom improvement before 23 days and the other half noticed symptom improvement after 23 days.

It may take time for Strattera to build up in your body, and the drug’s effects on ADHD can be gradual. It also takes time to determine the right dosage of Strattera. Additionally, responses to any drug can vary from person to person.

How do I know Strattera is working?

You’ll know Strattera is working when you start to notice changes or improvements in your ADHD symptoms.

It may take a little bit of time to notice these changes. If you’ve been taking Strattera for some time and have concerns about whether it’s working for you, talk with your doctor.

The half-life of Strattera is 5 hours. It typically takes about 4 to 5 half-livesTrusted Source for a drug to be cleared from your body. This means a dose of Strattera will stay in your system for about 20 to 25 hours.

So, the drug shouldn’t wear off during the day. Strattera’s peak time, or maximum concentration in your body, is 1 to 2 hours after the dose.

Talk with your doctor or pharmacist if you have questions about your dosing schedule for Strattera.

How does Strattera work?

It isn’t fully known how Strattera works to treat ADHD. It belongs to a class of drugs called selective norepinephrine reuptake inhibitors.

Strattera is thought to work by increasing the level of norepinephrine, a neurotransmitter in the brain. Having more norepinephrine in the brain may help improve attention and focus in people with ADHD.

Strattera is a prescription drug used to treat ADHD. It starts working in your body right away, but it may take a few weeks for you to notice any changes or improvements in your symptoms of ADHD.

If you have questions about Strattera and ADHD, talk with your doctor or pharmacist.

Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.