ADHD
"I&#039;ve been taking Concerta XL for around 2 months after finally being diagnosed as and adult. I started on 18mg, and within half an hour, I felt able to concentrate and focus on tasks for the 1st time. A couple of days later, I had crippling headaches but everything settled down after that. My resting heart rate has sped up by 10bpm whilst the medication is in effect. I&#039;m currently on 54mg and the therapeutic effects are great, but I feel dehydrated no matter how much water I drink, and I have developed sinus problems. It&#039;s worth it though."