Most parents of a child with ADHD remember the first prescription well. There is hope, there are nerves, and there are a lot of questions.
What often comes as a surprise is how quickly that first medication stops being the one the child is taking.
A new analysis from Epic Research, published November 10, 2026, followed 682,112 US children aged 6 to 17 who started a long-acting ADHD medication.
After six months, 58 percent were still on the drug they started with. By one year, that had fallen to 37 percent. By the two-year mark, only 21 percent remained on their original prescription.
Also read: Vitamin may help protect babies from stress during pregnancy
The pattern held across the four most common long-acting stimulants. Focalin XR, Concerta, Vyvanse and Adderall XR all landed within a point or two of each other at two years.
Why so many children switch or stop
Epic's analysis drew on medical records from more than 2,200 hospitals and 50,000 clinics. It is observational, which means it cannot say why a given child came off a given pill.
The authors point to three plain reasons that could be driving the drop-off. Side effects a family found hard to live with. A changed diagnosis. A decision to stop that never passed through the doctor's office.
Older children stopped the fastest. Among those who started treatment at age 7, about 24 percent were still on the same drug two years later. For 17-year-olds, that figure was closer to 12 percent.
Also read: 8 signs your back pain could be spinal stenosis, not just muscle strain
There is also a supply angle the analysis cannot see. The US stimulant shortage that began in October 2022 has eased in 2026 but is not resolved.
Five ADHD drugs remained on the FDA shortage list in October 2026, and a pharmacy that cannot fill the usual prescription can nudge a family onto a different one.
A conversation with the doctor
ADHD is one of the most common conditions in US childhood. According to the CDC, about 7 million children aged 3 to 17, or 11.7 percent, currently have a diagnosis.
Not all of them take medication. But most families who do will face dose changes, switches or planned breaks over time.
Also read: New study reveals how to prevent muscle loss while taking weight loss drugs
Federal treatment guidance for school-age children pairs medication with behavior therapy and parent training in behavior management.
Doctors are expected to adjust doses to balance benefits and side effects, and to review the plan regularly.
Stopping or switching a stimulant on your own can leave symptoms unmanaged or trigger rebound effects such as irritability and poor sleep.
A quiet discontinuation also leaves the pediatrician without the information needed to try something that fits better.
Also read: Two forever chemicals are tied to a 93% higher rate of a hard-to-treat breast cancer
Parents who feel their child's medication is not working, or whose child dislikes being on it, are not alone. The practical next step is to say so at the next visit.
A review of side effects, school reports and daily routines often leads to a change in dose, a different formulation or a planned break instead of a quiet stop.
Also read: What poor sleep may quietly be doing to your blood pressure over time
This article is made and published by Ida-Marie Palm Varbæk, who may have used AI in the preparation.