Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Dexmethylphenidate (Focalin, Focalin XR) and clonidine ER (Kapvay) are both used to treat attention-deficit hyperactivity disorder (ADHD), but they work in different ways and belong to different medication classes. Dexmethylphenidate is a stimulant that helps improve focus and attention by increasing levels of norepinephrine and dopamine in the brain. In contrast, clonidine ER is an alpha-2 adrenergic agonist that works on certain brain receptors, though its exact mechanism for treating ADHD is not well understood. Dexmethylphenidate is a controlled substance with a risk of misuse and dependence, while clonidine ER is not a controlled substance and has no potential for abuse. Dexmethylphenidate can cause side effects like stomach upset, nervousness, and trouble sleeping, whereas clonidine ER often causes irritability, nausea, and sleepiness. Additionally, dexmethylphenidate is available in both immediate-release and extended-release forms, while clonidine ER is only available as an extended-release tablet. Both medications are available in generic forms, making them more affordable options.
Focalin (dexmethylphenidate)
Clonidine er (Kapvay)
Focalin (dexmethylphenidate)
Clonidine er (Kapvay)
Summary of Focalin vs. Kapvay
Summary for Stimulant
Prescription only
Dexmethylphenidate (Focalin, Focalin XR) is a stimulant medication that's used for treating attention deficit-hyperactivity disorder (ADHD) in adults and children. It's thought to work by balancing certain chemicals in your brain to help you focus. This medication is available as an immediate-release tablet that you take twice per day and an extended-release capsule you take once per day. Side effects can include stomach upset and nervousness. It can also cause withdrawal symptoms if it's suddenly stopped after long-term use. Focalin (dexmethylphenidate) is available as both a brand-name and lower-cost generic medication.
Summary for Alpha-2 adrenergic agonist
Prescription only
Extended-release clonidine (Kapvay) is an alpha-2 agonist. It's a non-stimulant medication used to treat attention deficit-hyperactivity disorder (ADHD) in adults and children. Clonidine ER (Kapvay) is taken by mouth, typically twice per day. Some of the more common side effects include sleepiness and headache. This medication rarely causes insomnia (trouble sleeping), and isn't known to cause weight gain. Brand name Kapvay has been discontinued; clonidine ER (Kapvay) is only available as a generic medication.