
Clonidine is a medication that is primarily used to treat high blood pressure. It is also used to treat attention deficit hyperactivity disorder (ADHD) and is prescribed off-label for sleep disorders, especially in children and adolescents. While it is not FDA-approved for insomnia, one of its side effects is sedation or sleepiness. Limited studies have shown that clonidine may be a good approach to improve sleep quality and quantity for children and adolescents with insomnia, especially when they have mood or anxiety disorders.
| Characteristics | Values |
|---|---|
| What is it used for | Treating high blood pressure (hypertension) and attention deficit hyperactivity disorder (ADHD) |
| FDA-approval for insomnia | No |
| Side effects | Drowsiness, decreased alertness, dry mouth, initial increase in blood pressure |
| Other common side effects | Sleepiness |
| Serious side effects | Rare but include an initial increase in blood pressure |
| Effectiveness | May be a good approach to improve sleep quality and quantity for children and adolescents |
| Dosage | Usually taken once daily, 1-2 hours before bedtime |
| Administration | Taken with or without food |
| Starting dose | Low dose |
| Increase in dose | Slow increase over several weeks |
| Effect on cyclic arousal | Has a paradoxical effect |
| Effect on sleep bruxism | Has a paradoxical effect |
| Effect on NREM sleep | Has a paradoxical effect |
| Effect on REM sleep | Not known |
| Effect on sleep in chronic pain patients | Better than zopiclone |
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What You'll Learn
- Clonidine is not FDA-approved for insomnia but is used to treat it in children and adolescents
- It is also used to treat attention deficit hyperactivity disorder (ADHD) in children
- It stimulates certain receptors in the brain stem to lower heart rate and blood pressure
- It is not approved by Health Canada for use in children and adolescents
- It is prescribed off-label when potential benefits outweigh the risks

Clonidine is not FDA-approved for insomnia but is used to treat it in children and adolescents
Clonidine is a medication that is primarily used to treat high blood pressure (hypertension). It is also used to treat attention deficit hyperactivity disorder (ADHD) in people aged 6 years and older. While it is not approved by the FDA or Health Canada for the treatment of insomnia, it is sometimes prescribed "off-label" to treat insomnia in children and adolescents, particularly those with ADHD.
Clonidine is believed to induce sleepiness by decreasing norepinephrine (NE) release through the activation of alpha-adrenergic receptors in the central nervous system (CNS). This causes a decrease in heart rate and blood pressure, which can lead to feelings of drowsiness or sedation. In addition, by affecting the prefrontal cortex, clonidine can help regulate behaviour, attention, and expression of emotion or affect, which may further contribute to its effectiveness in treating insomnia.
The use of clonidine for insomnia has been studied in children and adolescents aged 6 to 24, with some evidence suggesting that it may be effective in improving sleep quality and quantity. However, it is important to note that the studies on this topic are limited and have primarily focused on individuals with ADHD. As a result, it is difficult to determine the effects of clonidine on sleep in the general population.
While clonidine may be prescribed off-label for insomnia in children and adolescents, it is important to consider the potential side effects. Common side effects include drowsiness, dizziness, and a decrease in alertness. More serious, but rare, side effects may include an initial increase in blood pressure before a decrease. It is important to consult with a doctor or healthcare professional before taking clonidine and to monitor any side effects that may occur.
In summary, while clonidine is not FDA-approved for insomnia, it has been used off-label to treat insomnia in children and adolescents, particularly those with ADHD. It is believed to work by decreasing norepinephrine activity and affecting the prefrontal cortex, leading to feelings of sleepiness and improved regulation of sleep-related functions. However, more studies are needed to fully understand the effects of clonidine on sleep in different populations.
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It is also used to treat attention deficit hyperactivity disorder (ADHD) in children
Clonidine is a medication that is used to treat attention deficit hyperactivity disorder (ADHD) in children. It is also used to treat high blood pressure (hypertension) and other conditions such as anxiety, sleep disorders, tic disorders, and post-traumatic stress disorder (PTSD). While it is not approved by Health Canada for use in children and adolescents, it can help improve symptoms of ADHD, including difficulties paying attention, impulsive behaviour, and hyperactivity.
Clonidine works by affecting the activity of the brain chemical norepinephrine, which influences blood pressure, heart rate, and anxiety. Reducing norepinephrine activity also stabilizes areas of the brain that affect impulsive actions, attention, and body movements, making them less excitable and improving symptoms of ADHD. It is believed that the effects of clonidine on the prefrontal cortex, the part of the brain that helps regulate behaviour, attention, and expression of emotion, make it an effective treatment for ADHD in people aged six years and older.
Clonidine is typically taken 2-4 times daily, with or without food, at the same times each day for the treatment of ADHD. It is important to note that side effects may be more common when starting a new medication or after a dose increase. Some common side effects include drowsiness, dizziness, and a slowed-down feeling. It is recommended that individuals who experience these side effects do not drive a car or operate heavy machinery.
There have been studies investigating the effectiveness of clonidine in treating sleep disorders in children and adolescents with ADHD. One study found that clonidine improved sleep quality and quantity in children and adolescents, especially in females, those with mood or anxiety disorders, and those whose sleep latency exceeded 60 minutes at baseline. Another study compared the effectiveness of clonidine and zopiclone for insomnia treatment in chronic pain patients and found that clonidine was superior in terms of sleep quality, analgesia, tolerability, and patient safety.
While clonidine has shown promise in treating insomnia in children with ADHD, the existing studies have been limited and have only focused on this specific population. More research is needed to confirm the safety and effectiveness of clonidine as a treatment for insomnia in other groups of people.
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It stimulates certain receptors in the brain stem to lower heart rate and blood pressure
Clonidine is a medication that can be used to treat insomnia and improve sleep quality. It is primarily used to treat high blood pressure (hypertension) and attention deficit hyperactivity disorder (ADHD). While it is not FDA-approved for insomnia treatment, one of its side effects is sedation or sleepiness.
Clonidine stimulates certain receptors in the brain stem to lower heart rate and blood pressure. It belongs to a class of drugs called centrally acting alpha agonists, which stimulate certain receptors in the brain stem to lower heart rate and blood pressure. This class of drugs works by affecting the activity of the brain chemical norepinephrine, which influences blood pressure, heart rate, and anxiety in the body. By reducing norepinephrine activity, these drugs also stabilise areas of the brain that affect impulsive actions, attention, and body movements, making them less excitable and improving symptoms of ADHD, tic disorders, irritability in autism, and some symptoms of PTSD, such as nightmares.
Clonidine is not approved by Health Canada for use in children and adolescents. However, it can be prescribed "off-label" when the potential benefits outweigh the risks. It is commonly prescribed to children as a sleep medication, especially when other treatments have not been effective or well-tolerated. It is usually taken once daily, 1-2 hours before bedtime, with or without food.
Clonidine has been found to be effective in treating insomnia in children with ADHD, though these results are limited and do not provide enough information to confirm its safety and effectiveness. It is important to note that this medication will not cure high blood pressure but helps control it, so it must be taken as directed to lower and maintain lower blood pressure.
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It is not approved by Health Canada for use in children and adolescents
Clonidine is a medication that is used to treat high blood pressure, or hypertension. It is also used to treat attention deficit hyperactivity disorder (ADHD) in both adults and children. While it is not approved by Health Canada for use in children and adolescents, it is sometimes prescribed off-label to treat sleep disorders in this age group.
Clonidine is believed to induce sleep by decreasing the release of norepinephrine, a brain chemical that influences blood pressure, heart rate, and anxiety. This reduction in norepinephrine activity stabilizes areas of the brain that control impulsive actions, attention, and body movements, making them less excitable and improving symptoms of ADHD.
Several studies have examined the effectiveness of clonidine in treating sleep disorders in children and adolescents. One study found that clonidine improved sleep quality and quantity in participants aged 6 to 24, particularly in females, those with mood or anxiety disorders, and those with sleep latency exceeding 60 minutes at baseline. Another study compared the effectiveness of clonidine and zopiclone in treating insomnia in chronic pain patients and found that clonidine resulted in shorter sleep onset, improved morning restfulness, better overall sleep quality, and longer total sleep duration.
It is important to note that clonidine is not a cure for high blood pressure but rather a tool to help control it. It should be used as directed by a doctor, and missing doses can cause a dangerous increase in blood pressure. While clonidine can cause drowsiness, which may be beneficial for those using it as a sleep aid, it can also cause dizziness and slowed reactions. As such, it is important to avoid driving or operating heavy machinery while taking this medication, especially after increasing the dosage.
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It is prescribed off-label when potential benefits outweigh the risks
Clonidine is a medication that is primarily used to treat high blood pressure (hypertension). It is also used to treat attention deficit hyperactivity disorder (ADHD) in children 6 years or older. It is not FDA-approved for insomnia. However, one of the side effects of clonidine is sedation or sleepiness.
Clonidine is a group of medications called "alpha2 agonists" and works by affecting the activity of the brain chemical norepinephrine, which influences blood pressure, heart rate, and anxiety in the body. Reducing norepinephrine activity also stabilizes areas of the brain that affect impulsive actions, attention, and body movements, making them less excitable and improving symptoms of ADHD, tic disorders, irritability in autism, and some symptoms of PTSD (such as nightmares).
Clonidine is also used to treat sleep disorders in children and adolescents. It is prescribed off-label when potential benefits outweigh the risks. Off-label prescription is when a drug that has been approved for one use is prescribed for a different purpose. In the case of clonidine, it is sometimes prescribed to treat insomnia, anxiety, and post-traumatic stress disorder (PTSD), as well as the treatment of withdrawal symptoms from opioids, alcohol, and benzodiazepines.
There is some evidence to support the use of clonidine in treating insomnia in children with ADHD. A study of 62 participants found that clonidine improved sleep quality and quantity, especially in females, those aged 13 to 24, and those with mood or anxiety disorders. Another study compared the effectiveness of clonidine and zopiclone in treating insomnia in chronic pain patients and found that clonidine was better than zopiclone in terms of sleep quality, analgesia, tolerability profile, and patient safety.
However, it is important to note that there are limited studies on the use of clonidine for treating insomnia, and the existing studies have focused primarily on children with ADHD. The results of these studies do not provide enough information to confirm clonidine as a safe and effective treatment for insomnia in the general population.
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Frequently asked questions
Clonidine is a medication that belongs to a class of drugs called centrally acting alpha agonists. It is primarily used to treat high blood pressure (hypertension).
Clonidine stimulates certain receptors in the brain stem, which lowers heart rate and
Clonidine is believed to induce sleepiness by decreasing norepinephrine release through the activation of α-adrenergic receptors in the CNS. It is often prescribed as a sleep medication for children and adolescents.
Common side effects of clonidine include drowsiness, dizziness, and a slowed-down feeling. It may also cause a rare initial increase in blood pressure before it decreases.
Clonidine is not approved by Health Canada for use in children and adolescents. It may interact with alcohol and other central nervous system (CNS) depressants, enhancing their effects. It should be used with caution if driving or operating heavy machinery.








































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