### drug | street drug | downer:

Barbiturate
* All barbiturates exhibit anticonvulsant activity in anesthetic doses.
* Can come in the form of pills, capsules and syrups.
* Some barbiturates are addictive, producing strong withdrawal symptoms when discontinued
  - potent anticonvulsants
* also have a depressing effect on respiration and heart rate.
* are addictive substances
  - highly physically and psychologically addicting
  - less commonly prescribed medications used to treat anxiety and insomnia
  - medications, including pentobarbital, that are used to treat insomnia or seizures
  - potent respiratory depressants
  - prescription drugs
  - salt
  - similar
  - synthetic drugs which depress the central nervous system
  - the most commonly used agents
  - water-soluble, and can be taken orally, intravenously or in suppository form
* can also cause excitement, pain, and allergic reactions
  - be effective but present high risks for addiction and accidental overdose
  - lead to excessive sedation and cause anesthesia, coma and even death
* have little analgesic action at subanesthetic doses.
* have the advantage of producing inebriation without the obvious odour of alcohol
  - highest morbidity and mortality of the sedative-hypnotics
* inhibit oral contraceptives.
* slow down the central nervous system and cause tranquilizing or antiseizure effects.
* stimulate the body's production of the metabolic enzymes which inactivate the drug.

### drug | street drug | downer | barbiturate:

Phenobarbital
* affects the metabolism of phenytoin and succinimides.
* decreases verapamil concentrations.
* induces the metabolism of warfarin, which decreases warfarin's effect.
* is anticonvulsant
  - by far the most commonly used agent
  - drugs
  - in a class of drugs called barbiturates
  - one such barbiturate
* metabolite of primidone and mephobarbital.
* provides a sedative action on the nerves within the brain.
* reduces the plama concentration of verapamil and nifedipine.
* remains the drug of choice.
* safe and effective medication for reducing the frequency of seizures.

### drug | street drug | downer | barbiturate:

Yellow jacket
* are a small variety of hornet
  - active from spring until late fall
* are aggressive bees attracted to bright colors, sweet smells and meat
  - when threatened
  - attracted to the rotting fruit, so remove it promptly
* are black and bright yellow
  - with yellow markings, and are found in various climates
  - easily distinguishable by their yellow and black coloring
  - fierce and the insect most likely to sting
  - hornets
  - in fact important predators of pest insects
  - sleek, yellow and black insects that fly extremely well
  - small wasps with distinct yellow and black markings
  - social insects
  - the most aggressive of the stinging insects
* become a nuisance in late summer or early fall.
* build nests consisting of a series of combs surrounded by a paperlike covering.
* cause more moderate and also more severe reactions than bees or wasps.
* lack the dense body hairs that are found on carpenter bees and honey bees.
* make their nests of paper.
* name applied to a number of species that have extensive yellow markings.
* nest in the ground and hornets in trees and bushes
  - like to visit areas where fresh food or waste is available

Chloral hydrate
* are chemical compounds
* has a narrow therapeutic range.
* hypnotic, long-established for insomnia.
* is metabolized into trichloroethanol, which in turn produces sleep and anesthesia.

Ethchlorvynol
* has the potential for the development of physical and psychological dependence.
* is metabolized primarily in the liver.
* produces less initial excitement than do the barbiturates.