It is difficult to answer this question definitively, as it depends on many factors such as age, medical history, and lifestyle habits. Generally speaking, Concerta is most effective when taken once a day in the morning, and it is recommended that it be taken at the same time each day. Taking it too late in the day can lead to difficulty sleeping and other side effects.
For adults, the maximum recommended dose of Concerta is 54 mg once a day in the morning. The maximum dose should be taken no later than 10am, as taking it later can lead to difficulty sleeping and other side effects.
For adolescents, the maximum recommended dose of Concerta is 72 mg once a day in the morning. The maximum dose should be taken no later than 9am, as taking it later can lead to difficulty sleeping and other side effects.
It is important to note that the time of day you take Concerta can affect the effectiveness of the medication. Therefore, it is best to take it as close to the same time each day as possible to ensure the best results. If you must take it later than the recommended times, it is best to talk to your doctor to determine the best time for you to take it.