Read the Medication Guide provided by your pharmacist before you start using methamphetamine and each time you get a refill. If you have any questions, consult your doctor or pharmacist.
For ADHD, take this medication by mouth with or without food, usually once or twice daily or as directed by your doctor. 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.
For weight loss, take this medication by mouth, usually half an hour before each meal or as directed by your doctor. Take this medication exactly as prescribed.
Do not take this medication late in the evening because it may cause you to have trouble sleeping.
This medication may cause withdrawal reactions, especially if it has been used regularly for a long time or in high doses. In such cases, withdrawal symptoms (such as extreme tiredness, mental/mood changes such as agitation or depression) may occur if you suddenly stop using this medication. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details, and report any withdrawal reactions right away.
Though very unlikely, abnormal drug-seeking behavior (addiction) is possible with this medication. Do not increase your dose, take it more frequently, or take it for a longer time than prescribed. Properly stop the medication when so directed.
When used for an extended period, this medication may not work as well and may require different dosing (if taken for ADHD) or stopping the medication (if taken for weight loss). Talk with your doctor if this medication stops working well.
Inform your doctor if your condition persists or worsens.