Compare Concerta vs. Kapvay

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Helps you focus and stay alert.

Concerta (methylphenidate extended-release) is a first-choice treatment for ADHD that works throughout the day, but can affect growth in children and teens.

Treats attention deficit hyperactivity disorder.

Kapvay (clonidine) is one of the few medicines for ADHD that isn't a stimulant and not addictive, but it can lower your blood pressure.

Upsides
  • First-choice medication to treat ADHD. Some other forms of Concerta (methylphenidate extended-release) can also treat narcolepsy.
  • The onset of effects will occur within an hour. The full effects can last 8 to 12 hours.
  • Taken only once a day compared to the immediate-release form.
  • Available in many different forms: extended-release and immediate-release tablets, chewable tablet, liquid, and skin patches.
  • The capsule may be sprinkled on applesauce if you have a difficult time swallowing pills.
  • Can be used alone or together with a stimulant-type medicine to treat ADHD.
  • Also treats blood pressure and some nervous system and psychiatric conditions.
  • Kapvay (clonidine) is available in generic.
Downsides
  • Avoid alcohol since it can cause worsen side effects.
  • Concerta (methylphenidate extended-release) is a controlled medication that can be habit-forming and lead to physical dependence.
  • Cannot stop taking this drug all of a sudden without calling your doctor. You may have a greater risk of mood changes.
  • Kapvay (clonidine) is not a first choice medicine to treat ADHD.
  • Kapvay (clonidine) can make you feel very dizzy or cause low blood pressure.
  • Stopping Kapvay (clonidine) suddenly can cause your blood pressure to jump and your heart to beat very fast.
  • It can take up to two weeks of taking Kapvay (clonidine) to notice any changes in behavior.
  • Kapvay (clonidine) has to be swallowed whole, which can be hard for some children to do.
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Used for
Dosage forms
  • Pill
  • Chewable tablet
  • Dissolving tablet
  • Liquid
  • Extended release
Price
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Reviews
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Side effects
30possible side effects
  • Lowered appetite
    25%
  • Headache
    22%
  • Dry mouth
    14%
  • Nausea
    13%
  • Loss of sleep
    12%
  • Anxiety
    8%
  • Weight loss
    7%
  • Dizziness
    7%
  • Irritability
    6%
  • Fast heart rate
    5%
  • Excessive sweating
    5%
  • Initial insomnia
    4%
  • Depressed mood
    4%
  • Palpitations
    3%
  • Tremor
    3%
  • Nervousness
    3%
  • Restlessness
    3%
  • Vertigo
    2%
  • Blurred vision
    2%
  • Indigestion
    2%
  • Vomiting
    2%
  • Upper respiratory tract infection
    2%
  • Inability to eat
    2%
  • Muscle tightness
    2%
  • Agitation
    2%
  • Aggression
    2%
  • Teeth grinding
    2%
  • Depression
    2%
  • Low sex drive
    2%
  • Mouth and throat pain
    2%
See more detailed side effects
12possible side effects
  • Sleepiness
    19%
  • Fatigue
    14%
  • Headache
    7%
  • Upper abdominal pain
    7%
  • Decreased appetite 
    6%
  • Dizziness
    5%
  • Insomnia
    4%
  • Aggression
    2%
  • Mood changes
    2%
  • Emotional disorders
    2%
  • Irritability
    2%
  • Stuffy nose
    2%
See more detailed side effects
Risks and risk factors
  • Serious or life-threatening heart problems
    • History of heart problems
  • Abuse and dependence
    • History of drug abuse
    • Alcoholism
  • Aggressive behavior and psychiatric symptoms
    • History of psychotic episodes
    • History of bipolar disorder
    • History of Tourette's syndrome
  • Long-term growth suppression
    • Children
  • Seizures
    • History of seizures
  • Circulation problems in the hands and feet
See more detailed risks and warnings
  • Low blood pressure and low heart rate
  • Sleepiness
    • Taking with alcohol
    • Taking other medicines that make you less alert
  • High blood pressure
    • Stopping Kapvay (clonidine) suddenly
See more detailed risks and warnings