Onyda XR vs. Kapvay for ADHD: Important Differences and Potential Risks.

Onyda XR

(clonidine)

Clonidine ER

(Kapvay)

Summary for Onyda XR

Prescription only

Onyda XR (clonidine) is a non‑stimulant medication for attention-deficit hyperactivity disorder (ADHD). It's FDA approved for children 6 years and older. It can be used by itself or with stimulant ADHD medications. Onyda XR (clonidine) is an extended‑release liquid you take by mouth once each night at bedtime. Common effects include sleepiness, tiredness, and headache. Onyda XR (clonidine) can also lower blood pressure and slow the heart rate, so your care team might check these regularly.

Indications for Onyda XR

Attention-deficit hyperactivity disorder (ADHD) in children 6 years and older

Pros and Cons for Onyda XR

Pros

Non‑stimulant option for ADHD
Taken once at night, so it could be a good option for people with busy morning routines
Is a liquid, so it's an option for children who can't swallow pills
Can be used alone or with a stimulant ADHD medication

Cons

Can cause sleepiness and tiredness
Can lower blood pressure and heart rate
Must lower the dose slowly to stop taking the medication to avoid dangerous rebound high blood pressure
Interacts with some medications, including blood pressure medications and sedatives

Common Side Effects for Onyda XR

Drowsiness (31%–38%)
Headache (13%–20%)
Feeling tired (13%–16%)
Upper stomach pain (10%–15%)
Irritability (5%–9%)
Dizziness (3%–7%)
Trouble sleeping (5%–6%)
Constipation (1%–6%)
Nausea (4-5%)

Warnings for Onyda XR

Low blood pressure and slow heart rate
Possible heart rhythm problems
Sleepiness and dizziness
Dangerously high blood pressure after stopping Onyda XR (clonidine) suddenly
Allergic reaction

Summary for Kapvay

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.

Indications for Kapvay

Attention-deficit hyperactivity disorder (ADHD) in people ages 6 years and older

Pros and Cons for Kapvay

Pros

Taken by mouth
A non-stimulant option for ADHD
Can be taken by children ages 6 years and older

Cons

Not a first-choice option for ADHD
Need to take twice daily
Can cause withdrawal symptoms if stopped suddenly

Common Side Effects for Kapvay

Sleepiness (up to 38%)
Headache (up to 20%)
Fatigue (up to 16%)
Upper stomach pain (up to 15%)

Warnings for Kapvay

Blood pressure, heart rate, and heart rhythm problems
Extreme sleepiness and dizziness
Allergic reaction

Prices with our coupons for Onyda XR vs. Kapvay

Onyda XR1 bottle / 30ml of 0.1mg/ml

$398.33$505.01

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Clonidine ER30 tablets / 0.1mg

$20.87$125.46

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Onyda XR vs. Kapvay

Onyda XR

Clonidine ER

Summary for Onyda XR

Indications for Onyda XR

Pros and Cons for Onyda XR

Pros

Cons

Common Side Effects for Onyda XR

Warnings for Onyda XR

Summary for Kapvay

Indications for Kapvay

Pros and Cons for Kapvay

Pros

Cons

Common Side Effects for Kapvay

Warnings for Kapvay

Prices with our coupons for Onyda XR vs. Kapvay

Browse medications by letter

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Onyda XR

Clonidine ER

Summary for Onyda XR

Indications for Onyda XR

Pros and Cons for Onyda XR

Pros

Cons

Common Side Effects for Onyda XR

Warnings for Onyda XR

Summary for Kapvay

Indications for Kapvay

Pros and Cons for Kapvay

Pros

Cons

Common Side Effects for Kapvay

Warnings for Kapvay