Sometimes, a what is a cns depressant person may not realize they are at risk of an overdose, such as when they use opioid pain relief medication and then drink alcohol. People who take CNS depressants may have mild symptoms such as drowsiness or feeling uncoordinated. People who misuse the medication or become dependent on it may have more severe symptoms, such as very slow breathing and memory loss.

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Recreational use can be illegal and dangerous, as people may not understand the risks of misuse. Benzodiazepines like diazepam and clonazepam are used to treat anxiety and panic attacks. Benzodiazepines are not prescribed for long-term use because of their high risk of developing dependence or addiction. If someone has any severe symptoms, they should seek immediate medical care.

• Both opiates and opioids work by interfering with the CNS and blocking pain signals to the brain.
• GHB was first studied in-depth in the 1960s for its potential use in treating narcolepsy and alcoholism.
• However, this can lead to a cycle of dependency as tolerance builds, prompting users to consume higher doses to achieve the desired effects.
• In contrast, CNS depression directly impacts the central nervous system, leading to physical symptoms like slowed reflexes, slurred speech, and impaired motor skills.
• Any event that causes decreased blood flow and oxygen to the brain, such as a severe heart attack can also lead to CNS depression.

Diagnosis of CNS Depression

CNS depression is prevalent among people who use these substances recreationally. TMS can be effective as a standalone treatment or in combination with cognitive behavioral therapy and/or medication. For a growing number of patients, it can effectively “reset” the brain and relieve debilitating symptoms of depression that don’t respond to medication.

Behavioral therapies, such as cognitive-behavioral therapy (CBT), can help address underlying issues contributing to substance misuse. By increasing GABA activity, CNS depressants effectively calm the nervous system. Store medicines, alcohol, and other potentially hazardous materials safely away from children and pets.

The system shuts down the delivery of nitrous oxide if the oxygen content falls below 30% (the concentration of oxygen in room air is 21%). Another safeguard for nitrous oxide use is scavenging systems to remove nitrous oxide from the air and prevent toxicity in patients and dental staff. The following video is a succinct review of GHB, a brief history, illicit uses, mechanism of action, its dose-related pharmacological effects, illicit uses, and a clinical case scenario.

Since 2000, more than 300,000 Americans have died of an opioid overdose. Data for 2016 estimates at least 64,000 drug overdose deaths, the highest number ever recorded in the United States. Mixing CNS depressants, opioids, and alcohol increases their effect.

Unlike other psychoactive drugs, inhalants are most commonly used by children and adolescents. It is estimated that one in four grade school and middle school students have intentionally used a common household product to get high by the time they reach the eighth grade. For most, inhalants are the first abusable drugs encountered due to curiosity but rarely a deliberate attempt to get high. Studies have shown that as users age, they tend to use inhalants less often.

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The combination of fast absorption and taking in the drug through the lungs results in an immediate rush and noticeable effects. Metabolism and excretion vary depending on the chemical in question, but half-lives tend to be very short. Nitrous oxide, for instance, is exhaled almost entirely through the lungs unchanged, resulting in a half-life of about 5 minutes. Intermediate-acting barbiturates used as sedative-hypnotics can induce sleep. Specifically, they reduce the time needed to fall asleep, increase the time spent asleep, and reduce the occurrence of rapid eye movement (REM) sleep. Recall from Chapter 4 that γ-aminobutyric acid (GABA) is the brain’s main inhibitory neurotransmitter.

Therapy

These drugs include benzodiazepines, barbiturates, and certain sleep medications, commonly prescribed to treat anxiety, panic attacks, and sleep disorders. Early effects of GHB consist of stimulation, relaxation, euphoria, and increased energy. As time goes on, users begin to exhibit symptoms similar to alcohol intoxication, including reduced inhibitions, impaired motor coordination, and slurred speech. At high doses, toxic effects such as nausea and vomiting, slowed heart rate, low blood pressure, convulsions, coma, and respiratory failure can occur. After use, people will experience fatigue, amnesia, confusion, and anxiety. These drugs are used to treat pain, anxiety, sleep disorders, and stress.

CNS depression is not uncommon, particularly among individuals using CNS depressant medications or misusing substances such as alcohol or opioids. Once your CNS is back on track, you’ll need to address the source of the problem. If you have a condition that requires medication, you’ll need to follow your doctor’s instructions for care. If you’ve become addicted to alcohol or drugs, you’ll need to safely withdrawal from the chemicals and commit to long-term treatment for addiction. Certain drugs affect the neurotransmitters in your brain, causing brain activity to slow.

• However, if you feel too sluggish or overly sleepy while taking medications that depress the CNS, talk to your doctor.
• Loperamide can cause feelings of relaxation or happiness, similar to other opioids.
• Hydrocodone is misused when it is taken in a way or dose that’s different than prescribed, taken without a prescription, or taken with other drugs to boost intoxicating effects.
• By blocking these glutamate receptors—NMDA, AMPA, and kainate—barbiturates further reduce CNS activity.
• Combining one or more CNS depressants often causes CNS depression.
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In 1912, Bayer produced another barbiturate, phenobarbital, which is still used to treat epilepsy to this day. Now that we have covered stimulants, it is time to move on to drugs that have opposing effects. In this chapter, we will examine a variety of depressants and learn about how they alter neurotransmission to reduce the activity of the central nervous system. Several substances can depress the CNS, ranging from anti-anxiety and sleep medications to so-called recreational drugs, such as heroin. Depression of the central nervous system or CNS often occurs when a person misuses a substance that slows brain activity. The central nervous system is made up of the brain and spinal cord, which control most bodily functions, including breathing and the heart.

Given their strength and addictive qualities, only people who have a severe condition should use them. Also, the individual may need more and more of the drug to experience the same benefits. Some people may need rehabilitation therapy to stop using the drugs. If a person has any of these symptoms, they should seek immediate medical care. Ultimately, severe symptoms can lead to unresponsiveness, coma, and death.

Time to action can be mere minutes, although effects only last for around half an hour. Drugs like these are more suited for serving as general anesthetics for short surgical procedures. GABAA receptors are comprised of five protein subunits surrounding the central chloride ion pore. The most common type of GABAA receptor has two α subunits, two β subunits, and one γ subunit, as seen in the diagram below. The primary binding site, also known as the orthosteric site, is where GABA normally binds to the receptor.