### drug:

New drug
* Many new drugs have fewer side effects than old ones.
* Some new drugs prevent leukotrienes from transmitting signals that trigger inflammation.
* are usually better than old drugs for people and for the health care system.
* can cure mice, thanks to advances in understanding the disease's basic biology
  - help many patients avoid hospitalization or shorten their hospital stays
  - improve the way people think in the early stages of the illness
  - stop a heart attack, or prevent a second, fatal attack
  - virtually clear the bloodstream of virus
* mean that people live longer.

Oral drug
* are usually the first type of medication prescribed for spasticity.
* can dissolve gallstones, but they take a year or two to do it.

Party drug
* Some party drugs can affect our sleep cycle, so take time to recover well
  - damage the brain
* can only create additonal relationship stress.

Pentoxifylline
* attenuates reperfusion injury in skeletal muscle following partial ischemia.
* inhibits mediator synthesis in an equine in vitro whole blood model of endotoxemia.

Pharmaceutical drug
* Every pharmaceutical drug has side effects.
* Many pharmaceutical drugs contain lactose as a filler.
* have an inelastic demand, and computers have an elastic demand.

Procaine
* accompanies antibiotics used to treat sick cattle.
* are drugs.
* is an excellent anesthetic widely used by dentists but it has no anti-aging effect.
* lacks topical anesthetic activity.

Psychiatric drug
* All psychiatric drugs act on the brain and alter it.
* Many psychiatric drugs can cause dry mouth, known medically as xerostomia.
* Most psychiatric drugs are far more dangerous to take than people realize
  - unable to be abused
* Some psychiatric drugs do help children, but school and family are crucial, too.
* can sometimes cause the opposite effect from what they are supposed to.
* have a strange effect.

### drug:

Psychoactive drug
* All psychoactive drugs are illegal.
* Many psychoactive drugs have affinities for specific brain regions
  - the potential for altering the development of the nervous system
* Most psychoactive drugs act by binding to a receptor in the brain.
* Some psychoactive drugs are illegal, such as cannabis and cocaine.
* alter neurotransmitters in the brain.
  - medicine
  - the ones that do make it into brain
  - toxic substances
* can impair the judgment of time.
* constitute one of the most frequently prescribed class of medicines.
* contain chemicals which alter the function of the brain.
* produce their effects by altering the neurotransmitters.

### drug | psychoactive drug:

Designer drug
* are copies of controlled substances and are produced by bootleg chemists
  - illegally manufactured modifications of prescription drugs, often stimulants
  - illicit variations of other drugs
  - laboratory-made versions of already existing drugs
  - most often addictive and create a euphoric, intoxicated state for the user
  - various kinds of street drugs that are developed in illegal laboratories
* derived from fentanyl are extremely potent and have a strong potential for overdose.
* have no accepted medical purpose.
* mimic an already illegal drug by slightly altering the chemical composition.
* speeds up the heart rate and and distorts reality.