Sleep Treat Flashcards
What is the role of sleep in the body?
Sleep allows for body restoration and recovery and promotes memory consolidation
What are the two types of sleep?
- Non-rapid eye movement (NREM) sleep
- Rapid eye movement (REM) sleep
What neurotransmitters decrease during the initiation of NREM sleep?
- Norepinephrine (NE)
- Serotonin (5HT)
- Histamine
- Acetylcholine (Ach)
What happens during REM sleep?
Increased brain activity, dreams, hallucinations, memory consolidation, and body paralysis (decreased muscle tone)
What happens when sedative-hypnotic drugs are discontinued?
Increased REM rebound (nightmares) and decreased NREM sleep (insomnia)
What are common causes of insomnia?
- Medical or mental illnesses (e.g., depression, bipolar disorders)
- Pain (e.g., arthritis, dyspepsia)
- Dyspnea
- Frequency of micturition
- Drugs (e.g., caffeine, nicotine, alcohol withdrawal)
Name some benzodiazepines used as sedatives.
- Triazolam
- Lorazepam
- Oxazepam
- Alprazolam
- Diazepam
- Clonazepam
What are some barbiturates mentioned in the text?
- Thiopental
- Pentobarbital
- Phenobarbital
What are GABA A receptors?
Ligand-gated channels permeable to Cl- that mediate inhibition and decrease excitability
What is the mechanism of action of benzodiazepines?
Benzodiazepines bind to an allosteric modulatory site on GABA A receptors to increase the affinity of GABA for its receptor
What is the difference in action between benzodiazepines and barbiturates?
Benzodiazepines increase the frequency of Cl- channel opening, while barbiturates increase the duration of Cl- channel opening
What are the effects of benzodiazepines and barbiturates?
- Sedation
- Hypnosis
- Anesthesia
- Anticonvulsants
- Muscle relaxants
What are the risks associated with sedative-hypnotic drugs?
CNS adverse effects, such as drowsiness, impaired judgment, diminished motor skills, and anterograde amnesia
True or False: Most sedative-hypnotic drugs are classified as schedule III or IV controlled drugs.
True
What are some common non-CNS adverse effects of sedative-hypnotics?
Hypersensitivity reactions and teratogenicity