For children ages six and older who are first starting Methylin, the dosage typically starts at 5 mg twice a day. The recommended daily dosage for adults is 20 mg to 30 mg, taken in two or three doses. If needed, your healthcare provider may slowly increase your daily dose up to 60 mg. Taking your Methylin dosage before breakfast and lunch can decrease the risk of insomnia.
The dose of Methylin® (methylphenidate hydrochloride) that your healthcare provider prescribes will vary, depending on a number of factors, including:
- The particular Methylin product
- Your age
- Other narcolepsy or ADHD medications you may have tried
- Other medical conditions you may have
- Other medications you are currently taking.
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
Short-Acting Methylin Dosage for ADHD and NarcolepsyShort-acting forms of Methylin include the regular tablets, chewable tablets, and the oral solution. For children ages six and over, Methylin should be started at 5 mg twice a day (before breakfast and lunch). Your child's healthcare provider may slowly increase the dose up to 60 mg total per day, if necessary.
For adults, the total dosage of Methylin per day is usually 20 mg to 30 mg (divided into two or three doses). Some people may need less Methylin, while others may need as much as 60 mg per day.
Long-Acting Methylin ER Dosage for ADHD and NarcolepsyMethylin ER is usually used for people who are switching from a short-acting methylphenidate product (such as any of the other Methylin products). Your healthcare provider will use your current dosage of short-acting methylphenidate to calculate an appropriate dosage for Methylin ER. These tablets last for about eight hours.