Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Guanfacine (Intuniv) and Adderall (dextroamphetamine / amphetamine salts) are both medications that can be used to treat attention-deficit hyperactivity disorder (ADHD), but they belong to different medication classes. Guanfacine is an alpha-2 adrenergic receptor agonist; its immediate-release form is used to treat high blood pressure, and its extended-release form (Intuniv) is approved for ADHD. Adderall, on the other hand, is a stimulant used to treat ADHD and narcolepsy. It comes as an immediate-release and extended-release (Adderall XR) medication. Guanfacine is typically taken once a day, while Adderall is taken once or multiple times a day, depending on the form and condition being treated. Both medications are available in both brand-name and generic forms. Common side effects of guanfacine include sleepiness and dizziness, while Adderall can cause trouble sleeping and loss of appetite. Adderall is also a controlled substance with a high risk of misuse and dependence. Guanfacine can interact with medications that cause drowsiness, whereas Adderall can interact with blood pressure medications and those affecting serotonin levels.
Guanfacine
Adderall
Guanfacine
Adderall
Summary of Guanfacine vs. Adderall
Summary for Alpha-2 adrenergic receptor agonist
Prescription only
Guanfacine is used to treat high blood pressure, but it's not a first-choice option. It's taken by mouth, typically once a day at nighttime. Common side effects of guanfacine include sleepiness, dizziness, and dry mouth. Some medications, such as sleep medications or certain pain medications, can interact with guanfacine by worsening those side effects. The brand name Tenex is no longer available.
Summary for Stimulant
Prescription only
Adderall is a stimulant medication that's used to treat attention deficit-hyperactivity disorder (ADHD) and narcolepsy in adults and children. It contains the instant-release (IR) forms of dextroamphetamine and amphetamine salts. Adderall is available as a brand-name and lower-cost generic tablet that's taken by mouth. Your psychiatrist will adjust the dosage for you based on how well the medication works for you. Common side effects include trouble sleeping and loss of appetite.