If your doctor has prescribed Klonopin for anxiety, you likely have many questions and perhaps even some concerns. It’s important that you understand how the medication works as well as how it is intended to be part of your treatment plan. As with any medication, you also need to know the risks of taking it, as well as how your diet, the other medications you take, and more could affect how it works or lead to health complications. This article discusses how Klonopin treats anxiety and the potential side effects you might experience. It also covers precautions, warnings, and potential drug interactions.
How Klonopin Treats Anxiety
Klonapin may be prescribed to treat a number of different anxiety disorders, including social anxiety disorder, panic disorder, and generalized anxiety disorder. Social anxiety disorder, previously called social phobia, is a mental health disorder in which someone experiences intense anxiety around or relating to social situations. This may cause the person to avoid these situations. People with panic disorder experience severe episodes of anxiety known as panic attacks, while people with generalized anxiety disorder experience a more generalized sense of anxiety that often does not have a specific source. Anxiety leads to symptoms such as profound worry or panic, possibly resulting in sweating and a racing heart or physical symptoms. Other symptoms can include restlessness, irritability, trouble sleeping, muscle tension, and feelings of worry. It’s not clear exactly how Klonopin reduces panic, but it’s thought to be related to activation of the inhibitory neurotransmitter called gamma-amino butyric acid (GABA). Benzodiazepines calm the brain by binding to GABA receptors. In the treatment of SAD, benzodiazepines are often taken with an antidepressant such as a selective serotonin reuptake inhibitor (SSRI). These antidepressants are considered the first-line of treatment for SAD. Klonopin may be added if a person with SAD hasn’t responded well to an SSRI alone. Since it acts quickly, Klonopin can be used when needed, such as when performance anxiety hits—say, before someone gives a big presentation or meets a lot of new people. Because anti-anxiety medications such as benzodiazepines run the risk of dependence, a doctor may prescribe them only for the short term.
Who Shouldn’t Take Klonopin
You should always speak to your doctor about your medical history and work with them to find a treatment that’s right for you. People who have certain medical conditions or are in specific circumstances that affect their health might not be able to take Klonopin or need to take precautions. You should not take Klonopin if you:
Have a history of sensitivity to benzodiazepines (such as Ativan, Xanax, or Valium)Have significant liver diseaseHave been diagnosed with acute narrow-angle glaucoma
Speak with your doctor about Klonopin and any precautions you should know about, particularly if you:
Have respiratory disease or any lung issuesHave depression or a history of depressionHave suicidal thoughts and behaviors or have had themAre pregnant or planning to become pregnant; are breastfeeding or planning to startHave any kidney or liver issuesHave been diagnosed with porphyriaAre younger than 18 or older than 64
Klonopin Side Effects
The side effects associated with Klonopin are usually dose-dependent, meaning the more a person takes, the more likely they are to experience side effects. Mild side effects will usually fade away after a few days or weeks.
Common Side Effects
The most common adverse effects people experience when taking Klonopin include:
Cognitive impairmentDepressionDizzinessSomnolenceTrouble with coordination and walking
Other side effects of Klonopin include:
Blurred visionChanges in sex drive or sexual performanceFrequent urinationIncreased production of salivaPain in muscles or jointsUnsteadinessSinus or respiratory problems
After you start Klonopin, your doctor will follow up with you and ask questions about how you have been feeling since you began taking it. This conversation will help them determine the drug’s effectiveness in treating your symptoms and gives you a chance to tell them about any side effects you are having. Your doctor can then decide if your dose needs to be adjusted.
Severe Side Effects
Some potential side effects of Klonopin are serious—even life-threatening. If you take Klonopin with alcohol, illicit drugs, or certain other medications, such as opioid painkillers, it will increase your risk of serious side effects. If someone taking Klonopin exhibits the following symptoms, seek immediate medical care:
Extreme sleepiness, loss of consciousness, or unresponsiveness. These can be signs that someone has taken too much Klonopin or mixed it with another medication or substance that is causing a reaction.Trouble breathing, rashes, hives, and swelling of the face, throat, and eyes. These can be signs of an allergic reaction.
While not common, Klonopin can also cause suicidal thoughts and ideations. Contact your doctor immediately if you experience any atypical changes in your behavior or mood, such as:
Problems sleeping or insomniaNew or worsening anxiety or depressionThinking about dying
Warnings and Interactions
While you’re taking Klonopin, it’s important to be aware of its risks. For example, it can be addictive and has potential for misuse, which is why it’s classified as a controlled substance. For more mental health resources, see our National Helpline Database. In addition, if you take other medications besides Klonopin, you should be aware of how these medications could affect one another. Interactions between medications can be mild, moderate, or severe, and they are not limited to prescription medications. You also need to be aware of any over-the-counter products, herbs, or supplements that are not safe to take with Klonopin. Ask your doctor or pharmacist if you are unsure if it is safe to take your medications or supplements with Klonopin.
Associated Risks
Klonopin poses a serious risk of misuse, abuse, and addiction. This can lead to overdose and even death—particularly when other substances are used at the same time, such as opioids or alcohol. There is also risk of physical and psychological dependence when you are taking Klonopin. Taking the medication daily for longer than two weeks increases your risk of developing physical dependence. Stopping Klonopin suddenly can cause withdrawal symptoms, such as seizures, which can be life-threatening. If you want to reduce or stop your dose, talk to your doctor. They can guide you to slowly take less of the medication over time, an approach known as tapering. People who are older might be more likely to experience medication side effects, including those that commonly occur with benzodiazepine use. Older people have also had increased risks of falling and negative cognitive effects. When you start taking Klonopin, avoid activities that could be dangerous to you or others until you have adjusted to the medication. Wait until you know how you feel taking it and how it affects your body before you:
DriveOperate heavy machineryParticipate in any potentially hazardous activities
Prescription Medications
There are several types, or classes, of prescription drugs that should be used with significant caution when combined with Klonopin. These include:
Antipsychotic agents (thioxanthene and butyrophenone classes) Barbiturates and nonbarbiturate hypnotics Narcotics Other antianxiety drugs Phenothiazines (such as Thorazine)
Several specific prescription medications are known to interact with Klonopin. These medications can change how much Klonopin is in your body as well as how well the drug works. Medications that may increase the levels and effects of Klonopin include:
Ketoconazole Luvox (fluvoxamine) Sporanox (itraconazole) Nefazodone
Medications that may decrease the levels and effects of Klonopin include:
Dilantin (phenytoin)PhenobarbitalTegretol (carbamazepine)
Some people with an anxiety disorder also take an antidepressant. You should know that monoamine oxidase inhibitors (MAOIs) and tricyclic antidepressants (TCAs) can enhance the depressant or sedative effects of Klonopin.
OTC Medications and Supplements
Over-the-counter (OTC) medicines or herbal supplements or remedies could interact with Klonopin. Examples include:
Antihistamines Cold, cough, and flu symptom relief remedies, especially those that contain certain ingredients, such as dextromethorphan Kava kava Magnesium sulfate (Epsom salts) Proton pump inhibitors (PPIs) St. John’s wort Sleep aids, including alternative remedies that contain valerian Tagamet HB (cimetidine)
Also, grapefruit juice may pose a risk. Grapefruit contains compounds that can change how certain medications work. You might not have to give it up completely, but your doctor might advise you to limit how much you have. Check in with them to see if you should avoid it while taking Klonopin.
Proper Disposal
If you have medication that you do not need, make sure you know how to dispose of it properly. Prescription medications cannot necessarily be tossed in your trash or flushed down the drain. When medications are disposed of improperly, they can harm people, animals, and the environment. For example, drugs that are flushed down the toilet end up in the local water supply, and when medications are thrown out in the garbage, they could find their way to a person who would be harmed by taking them or end up on the street where they would be sold illegally. If your doctor has not given you instructions about what to do with unused Klonopin, ask a pharmacist. They can tell you how to properly dispose of your medication.
Summary
Klonopin is a benzodiazepine that may be prescribed to treat anxiety. It affects electrical and neurotransmitter activity in the brain, which produces a calming effect. Benzodiazepines can be habit-forming and there are side effects that may occur while taking this medication. People with certain medical conditions should not take Klonopin, and the medication may interact with certain medications and supplements. Discussing your medical history with your doctor and always taking Klonopin as prescribed can help reduce these risks.
A Word From Verywell
If you are prescribed Klonopin for anxiety, your doctor has decided that it has the potential to be a positive part of your treatment plan. If you have any questions or concerns about the medication, ask your doctor or pharmacist. If you don’t feel that Klonopin is helping you with your symptoms or you are experiencing intolerable side effects, there are other medications and treatment options you can try. In addition to medication, your doctor might recommend therapy, such as cognitive behavioral therapy (CBT), during which you work with a therapist to learn how to monitor and alter your thought patterns and behaviors to help you handle situations in a more adaptive way. Cognitive behavioral therapy has been shown to be effective for some people with anxiety disorders and other mental health conditions.
