Read the Medication Guide provided by your pharmacist before you start taking amphetamine and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with or without food as directed by your doctor, usually once daily in the morning. Taking this medication late in the day may cause trouble sleeping (insomnia).

Shake the bottle well before each use. Carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose.

Do not drink alcoholic beverages while taking this medication. Drinking alcohol may release all of the drug at once, increasing the risk of side effects.

The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day.

During treatment, your doctor may occasionally recommend stopping the medication for a short time to see whether there are any changes in your behavior and whether the medication is still needed.

Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase.

If you suddenly stop using this medication, you may have withdrawal symptoms (such as severe tiredness, sleep problems, mental/mood changes like depression). To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used this medication for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal.

When this medication is used for a long time, it may not work as well. Talk with your doctor if this medication stops working well.

Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details.

Tell your doctor if you do not get better or if you get worse.