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Dexmethylphenidate oral tablet dosage: A detailed guide

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Form and strengthsDosageFAQHow it's takenCouponOverdoseAsk your doctorBoxed warning
Doctors prescribe dexmethylphenidate oral tablet for attention deficit hyperactivity disorder (ADHD). You take it by mouth twice per day.
Medically reviewed by Melissa Badowski, PharmD, MPH, FCCP
Updated on

This article describes dexmethylphenidate oral tablet’s dosages and strengths and gives details on how to take it. You’ll also find information on cost savings and coupon options for dexmethylphenidate. If you want to know more about dexmethylphenidate oral tablet, see this overview article. It covers details about the drug’s uses and side effects, ways to save on cost, and more.

Dexmethylphenidate oral tablet is a generic version of the brand-name drug Focalin. Dexmethylphenidate also comes in other forms taken by mouth, but those forms aren’t described in this article. To learn more about those forms, talk with your doctor.

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Boxed warning: Risk of misuse and addiction

Dexmethylphenidate has a boxed warning for the risk of misuse and addiction. A boxed warning is the most serious warning from the Food and Drug Administration (FDA).

See the end of this article for more information about this warning.

Form and strengths of dexmethylphenidate

Dexmethylphenidate oral tablet comes as follows:

  • Form: oral tablet, which you’ll take by swallowing
  • Strengths: 2.5 milligrams (mg), 5 mg, 10 mg

Dosage of dexmethylphenidate

This article describes the recommended dosages for dexmethylphenidate oral tablet. The drugmaker provides these dosages.

If your doctor prescribes this medication, you should follow the dosage they prescribe. Your doctor will determine the dosage that best meets your needs. Do not change your dosage of dexmethylphenidate oral tablet without your doctor’s recommendation.

Usual recommended dosages of dexmethylphenidate in adults

Usually, doctors start by prescribing a low dosage of dexmethylphenidate oral tablet. Then, they’ll adjust it over time until the right dosage is reached. Ultimately, your doctor will prescribe the smallest dosage of dexmethylphenidate oral tablet that gives the desired outcome.

If you’re currently taking methylphenidate, your doctor may start you on a different dosage than what’s recommended below. In this case, your dexmethylphenidate dosage will depend on the dosage of your current methylphenidate medication.

The typical dosage of dexmethylphenidate oral tablet is as follows:

ConditionStarting dosageMaintenance dosageMaximum dosage
ADHD2.5 mg twice per day2.5 to 10 mg twice per day10 mg twice per day (20 mg/day)

Dosage of dexmethylphenidate in children

Dexmethylphenidate oral tablet has been approved in children ages 6 to 17 years. This drug isn’t approved for use in children younger than 6 years old.

The recommended dosage for children ages 6 to 17 years is the same as for adults.

Dosage adjustments for dexmethylphenidate

Your doctor will prescribe a dosage of dexmethylphenidate oral tablet based on several factors. These include:

  • the specific condition being treated and how severe it is
  • other medications you are taking
  • how well the medication is working for you
  • other health conditions you may have

Missed dose of dexmethylphenidate

If you miss a dose of dexmethylphenidate, take it as soon as you remember. If it’s close to when you would usually take your next dose, skip the missed dose. Dexmethylphenidate doses should be taken at least 4 hours apart. If you’re unsure whether you should take the missed dose, talk with your doctor or pharmacist.

For tips on how to plan your doses of dexmethylphenidate oral tablet and avoid missing a dose, read this article. You could also try:

  • downloading a reminder app on your phone
  • setting an alarm
  • putting a note where you’ll see it, such as on your calendar, bathroom mirror, or bedside table

Frequently asked questions

Below are answers to some commonly asked questions about dexmethylphenidate oral tablet and its dosage.

Will my dose of dexmethylphenidate be calculated based on my weight?

No, your recommended dexmethylphenidate dosage is not based on your weight. In most cases, your doctor will start you on a low dosage and, if needed, will increase it over time.

Talk with your doctor for more information on how your dosage will be calculated.

Is dexmethylphenidate taken long term?

Yes, doctors typically prescribe dexmethylphenidate oral tablet as a long-term treatment. If you and your doctor determine that it’s safe and effective for your condition, you’ll likely take it long term.

If you have questions about how long you should take dexmethylphenidate oral tablet, talk with your doctor.

How dexmethylphenidate is taken

You’ll swallow dexmethylphenidate oral tablet twice per day. You’ll take your doses at least 4 hours apart on the same day. You can take this medication with or without food. 

If it’s hard for you to swallow tablets, view this article. It provides suggestions on how to swallow medications that come in pill form.

Also, be sure to talk with your doctor or pharmacist if you’re having difficulty taking your medication. They can offer recommendations about taking it.

Dexmethylphenidate coupon

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Overdose of dexmethylphenidate

It’s important that you do not take more dexmethylphenidate oral tablet than your doctor prescribes. Doing so can lead to harmful effects.

Symptoms of dexmethylphenidate overdose

Some symptoms of an overdose can include:

What to do if you take too much dexmethylphenidate

If you think you’ve taken too much dexmethylphenidate, call your doctor or pharmacist right away. Or you could call 800-222-1222 to speak with someone at America’s Poison Centers. You can also use its online resource. If you have severe symptoms, call 911 or a local emergency number immediately. You can also go to the closest emergency room.

What to ask your doctor

This article describes the usual recommended dosages for dexmethylphenidate oral tablet. If your doctor prescribes this medication, they’ll determine the dosage that’s best for you.

Do not change your dosage of dexmethylphenidate oral tablet without your doctor’s recommendation. You should take dexmethylphenidate oral tablet exactly as your doctor prescribes it. Let your doctor know if you have concerns or questions about your treatment plan.

Here’s a list of some possible questions you may want to ask your doctor:

  • What will my starting dosage of dexmethylphenidate oral tablet be?
  • How will I know if my dosage of dexmethylphenidate is right for me?
  • How long will I need to take dexmethylphenidate?

Boxed warning for dexmethylphenidate

Dexmethylphenidate has a boxed warning for the risk of misuse and addiction. A boxed warning is the most serious warning from the FDA.

Dexmethylphenidate has a risk of misuse. Misuse means taking a drug in a way other than how it’s prescribed.

Misusing dexmethylphenidate can cause serious side effects, overdose, and possibly death. It can also lead to addiction. Addiction means taking a drug even if it’s causing harm. Doctors sometimes refer to misuse and addiction as substance use disorder.

These risks are increased with higher doses of dexmethylphenidate and if the drug is used in a way it’s not supposed to be taken, such as through injection or snorting.

Before you start dexmethylphenidate, your doctor will assess your risk of misuse and addiction. They’ll also talk with you about the risks and how to store and dispose of dexmethylphenidate safely. During your treatment with dexmethylphenidate, your doctor will monitor you for signs of misuse and addiction.

You can talk with your doctor to learn more.

Disclaimer: Optum Perks 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.

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