Let's take a minute to talk about your medication. This is methylphenidate. It is known as a 'stimulant' medicine, but it calms people with ADHD so they can focus, work and learn. You should take your dose with plenty of water. Also, take the dose on time, so it works when you are awake, but has worn off by bedtime. It's an 'extended-release' tablet, so swallow the tablet whole and don't crush, chew or cut it. It's normal if you see the empty tablet in your stool. This medicine is considered safe when taken under a doctor's care. At first, mild side effects can occur, like stomach upset, headaches or less appetite. It could also cause minor sleeping problems, anxiety or irritability. These are normal and should go away. If these or other side effects become reasons you want to stop this medicine, please talk to your doctor or pharmacist. Like all medicines, this medicine can case rare but more serious side effects. Call your doctor right away if you notice unusual changes to your body, like circulation problems in your fingers or toes. This would include unexplained wounds, changes in color, numbness or pain. For safety, your doctor may check your blood pressure, and young patients may have their height and weight monitored. To reduce side effects, you should ask your doctor or pharmacist before taking any new medicines, even if they don't require a prescription. This medicine could be abused or misused by others, so store it securely in a safe place. For best results, read the Medication Guide for full information.