What Is Methylin? Uses, Dosage, and What You Need to Know in 2026

Methylin is a brand name for methylphenidate, one of the most commonly prescribed medications in the United States for attention deficit hyperactivity disorder (ADHD). Here's everything you need to know about what it is, how it works, who it's for, and how to use it safely.

What Is Methylin?

Methylin is a brand-name version of methylphenidate hydrochloride — a central nervous system (CNS) stimulant. It was specifically formulated as an oral solution (liquid) and chewable tablet, making it useful for children or adults who have difficulty swallowing standard tablets. The Methylin brand itself has largely been discontinued as a marketed brand, but generic methylphenidate oral solution and chewable tablets remain available from multiple manufacturers.

Methylphenidate is also available under many other brand names, including Ritalin (immediate-release tablets), Concerta (extended-release), Daytrana (transdermal patch), Jornay PM (evening-dosed extended-release), and Quillivant XR (extended-release oral suspension), among others.

What Is Methylin Used For?

Methylin (methylphenidate) is FDA-approved for:

Attention Deficit Hyperactivity Disorder (ADHD) in children ages 6 and older and in adults

Narcolepsy (a sleep disorder causing daytime sleepiness and sudden sleep attacks) — primarily in adults as a second-line therapy

Off-label, methylphenidate is sometimes used for cancer-related fatigue, refractory depression in older adults, and apathy associated with Alzheimer's disease, though these uses are not FDA-approved and evidence is more limited.

Is Methylin Approved for Children?

Yes. Methylphenidate is FDA-approved for ADHD in children 6 years of age and older. It is not approved for children under 6. The liquid and chewable tablet forms are particularly useful for younger children who can't swallow standard tablets.

What Are the Dosage Forms?

Methylin was available in these specific forms:

Methylin oral solution: 5 mg/5 mL and 10 mg/5 mL concentrations; useful when precise low-dose titration is needed

Methylin chewable tablets: 2.5 mg, 5 mg, and 10 mg; grape-flavored; contains aspartame (not for patients with PKU)

Generic methylphenidate immediate-release is also available as standard tablets (5, 10, 20 mg) from many manufacturers.

How Is Methylin Dosed?

Methylin (methylphenidate) immediate-release is a short-acting formulation with effects lasting approximately 3-5 hours. Typical dosing:

Children (6+ years): Starting dose 5 mg twice daily (before breakfast and lunch); increase by 5-10 mg per week as needed; maximum 60 mg/day

Adults: Typical dose 20-30 mg/day divided into 2-3 doses; maximum 60 mg/day

Doses should be taken 30-45 minutes before meals. The last dose should be taken early enough in the afternoon to avoid interfering with sleep (generally before 3-4 PM for most patients).

Is Methylin a Controlled Substance?

Yes. Methylin is a Schedule II controlled substance under the Controlled Substances Act. This means:

A new written prescription is required each time — prescriptions generally cannot be automatically refilled

Most states limit prescriptions to a 30-day supply

The DEA sets annual production limits (quotas), which is a key driver of the current shortage

Misuse, sharing, or selling is illegal and carries serious criminal penalties

Key Warnings and Precautions

Do not take if you have used an MAOI antidepressant in the past 14 days (risk of hypertensive crisis)

Tell your doctor about any personal or family history of heart disease, psychiatric illness, or substance use

Not approved for children under 6 years of age

The chewable tablet contains aspartame — do not use in patients with phenylketonuria (PKU)

Finding Methylin in Stock

Due to the ongoing methylphenidate shortage, filling your prescription can be challenging. medfinder helps patients find which pharmacies near them have their medication in stock by contacting pharmacies on your behalf and texting you results.

Want to understand how Methylin works in the brain? See: How Does Methylin Work? Mechanism of Action Explained in Plain English.