While CNS depressants all share an ability to reduce activity in the central nervous system and lower levels of awareness in the brain, there are significant differences among substances within this drug class.
How do depressants affect the brain?
Central nervous system depressants work by increasing the production of the neurotransmitter GABA, which in turn slows down brain activity and produces feelings of relaxation, drowsiness, and a number of other effects, including: Lowered blood pressure. Dilated pupils. Confusion or disorientation.
Do depressants cause relaxation?
When used as prescribed by a doctor, depressants can calm nerves and relax muscles. Larger or improperly used doses of depressant drugs can cause confusion, lack of coordination, low blood pressure, and slowed heart rate and breathing.
Which describes the characteristics of a depressant?
Which describes the characteristics of a depressant? a drug that slows nervous system activity and relaxes tension.
What is the physical effect of depressants?
Depressants slow or ‘depress’ the function of the central nervous system. They slow the messages going to and from your brain. In small quantities depressants can cause a person to feel relaxed and less inhibited. In large amounts they may cause vomiting, unconsciousness and death.
What are depressants used for?
Central Nervous System (CNS) depressants are medicines that include sedatives, tranquilizers, and hypnotics. These drugs can slow brain activity, making them useful for treating anxiety, panic, acute stress reactions, and sleep disorders.
What effect do depressants have on the body quizlet?
Depressants are drugs that tend to slow the central nervous system and slow brain activity by affecting the neurons. These drugs are dangerous because they slow heart and breathing rates and lower blood pressure.
What do depressants do to ADHD?
Like stimulants, antidepressant drugs raise your brain’s levels of chemicals such as dopamine and norepinephrine. Doctors have found that these drugs can help people with ADHD improve their attention span. They also help keep a lid on behavior like being impulsive, hyperactive, or aggressive.
Whats the opposite of a depressant?
Stimulants or “uppers” increase mental and/or physical function, hence the opposite drug class of depressants is stimulants, not antidepressants. Depressants are widely used throughout the world as prescription medicines and as illicit substances.
Is alcohol a depressant?
Alcohol is a depressant, which means it can disrupt that balance, affecting our thoughts, feelings and actions – and sometimes our long-term mental health. This is partly down to neurotransmitters, which are chemicals that help to transmit signals from one nerve (or neuron) in the brain to another.
Is nicotine considered a depressant?
Nicotine acts as both a stimulant and a depressant to the central nervous system. Nicotine first causes a release of the hormone epinephrine, which further stimulates the nervous system and is responsible for part of the “kick” from nicotine-the drug-induced feelings of pleasure and, over time, addiction.
What is the most commonly used and abused depressant?
Alcohol is most widely used and abused depressant.
What are 5 types of depressants?
- benzodiazepines (minor tranquillisers such as Valium)
- GHB (gamma-hydroxybutyrate)
- opioids (heroin, morphine, codeine).
What effect does drugs have on a person’s mental health?
Prolonged use of certain illicit drugs can result in a dopamine deficiency and lead to compulsive, drug-seeking behavior and long-term changes to mood and mental health. Sometimes, illicit drugs can cause symptoms of intoxication and withdrawal that mimic mental disorders.
How does alcohol act as a depressant?
Alcohol impacts the brain in a variety of ways. The substance binds to receptors for gamma-aminobutyric acid (GABA), which is a neurotransmitter responsible for producing feelings of calmness and sedation as well as the depression of the central nervous system that causes suppression of breathing and heart rate.
How can depressants affect a person mentally quizlet?
Depressants can affect someone mentally by calming their nerves, relieving tension, making them feel very relaxed, and less able to perform the IPDE process.
Are depressants physically addictive?
Most depressant drugs are highly addictive on their own. Therefore, when people take depressant prescriptions for longer than advised, it can also easily cause them to become dependent on them or addicted to them.
What are the long term effects of using depressant drugs *?
Central nervous system (CNS) depressants Short-term effects: Slows normal brain functions, gives a drowsy feeling, but over time the effects fade as body builds tolerance. Long-term effects: Addiction can result, withdrawal can be painful, and the drug may cause seizures and death.
What are depressants quizlet?
Definition of Depressants. Depressants are substances that can slow brain activity. They are used to reduce reactions in the body and relax muscles. They slow down the function of the nervous system by enhancing an effect of a type of neurotransmitter called GABA.
Which type of drug increases the activity of the body’s nervous system?
stimulant, any drug that excites any bodily function, but more specifically those that stimulate the brain and central nervous system. Stimulants induce alertness, elevated mood, wakefulness, increased speech and motor activity and decrease appetite.
Which type of drug increases the activity of the body’s nervous system quizlet?
Stimulants are the class of psychoactive drugs known for exciting the Central Nervous System, increasing one’s Heart Rate, Blood Pressure, awareness, and energy.
Why do people with ADHD like alcohol?
Alcohol is a depressant. That is why many people use it to relax. In the case of people afflicted with ADHD, many will use alcohol to calm down the hyperactivity.
Can antidepressants worsen ADHD?
Venlafaxine appears effective, but controlled studies are needed. Serotonin selective reuptake inhibitors have not been tested in controlled trials, but they cause inconsistent changes, often aggravate ADHD symptoms, and can cause frontal apathy and disinhibition.
Why do people with ADHD drink more?
Some people might drink to relieve symptoms of ADHD or depression. Others might drink too much, and end up experiencing more severe ADHD symptoms. They may end up feeling depressed as a result. In both cases, alcohol disrupts brain chemistry.
What is another term for depressants?
Synonyms & Near Synonyms for depressant. relaxant, sedative, tranquilizing. (also tranquillizing)