lecture: anxiety and insomnia drugs Flashcards
Insomnia is defined as:
Difficulty with falling asleep, staying asleep, or waking early.
It is also defined as
poor sleep quantity or quality
anxiolytic
“seditive” - produce calm & relaxation, reduces excitement
hypnotic
produce sleep
Sedatives and hypnotics work by depressing the CNS function. They are given in a LOW dose range. They are primarily used for (2).
anxiety disorders and insomnia
They include benzodiazepines, benzodiazepine-like drugs, and barbiturates.
Benzodiazepines are the drug of choice for (2).
insomnia and anxiety
A low dose is used to treat anxiety, and a high dose is used as a hypnotic.
They are also used to induce general anesthesia, for seizure disorders, for muscle spasms, and for alcohol withdrawal.
Benzodiazepines reduce anxiety and produce sleep by potentiating ___.
GABA
They do not mimic GABA. Therefore the body is dependent on the body’s own supply of GABA, and therefore they are hard to OD on.
Benzodiazepines are generally very well tolerated. They have (3).
fewer drug interactions, lower abuse potential, and drug interactions.
Side effects of Benzodiazepines include:
CNS depression,
weak respiratory depression,
Preganancy D or X,
and IV use can cause profound HTN and cardiac arrest
“Ben-Zo’s bring everything LOW and SLOW!”
Patients can develop a tolerance to Benzodizepines, especially when used as an ___.
anti-seizure.
Benzodiazepines interact with ___.
other CNS depressants.
They can also have a cross tolerance with othe CNS depressants. ie low and slow!
For Benzodiazepine toxicity/OD:
- provide supportive care (O2)
2. Give flumazenil (Romazicon)
Benzodiazepine suffix
-epam / -olam
think “Pam and Lam driving a Benz”
diazepam, lorazepam, alprazolam
Oral Benzodiazepines can be taken ___.
with food, especially for GI upset.
IV Benzodiazepines (diazepam, lorazepam) are very ___.
hazardous
So inject slowly, avoid intra-arterial injection and extravasation, and inject into tubing as close to the vein as possible.
Benzodiazepine-like drugs are the preferred agent for ___ and NOT indicated for ___.
preferred for insomnia, NOT for anxiety.
“Get your Zzz’s”
Zolpidem (ambien), Zaleplon (sonata), esZopiclone (lunesta)