Essay on peanut biter

Submitted By juanitapolspoo
Words: 421
Pages: 2

dose; the ED 50 of a potent drug is lower
than the ED 50 of a less potent drug. For example,
it has been said that LSD is one of the
most potent psychoactive drugs known. This
is true in that hallucinogenic effects can be
obtained with 50 micrograms (μg), compared
with several milligrams (mg) required of other
hallucinogens (a μg is 1/1,000 of a mg, which
is 1/1,000 of a gram [g]). However, the effects
of LSD are relatively limited—it doesn’t lead
to overdose deaths the way heroin and alcohol
do. Alcohol has a greater variety of more
powerful effects than LSD, even though in
terms of the dose required to produce a psychological
effect LSD is thousands of times
more potent.
Time-Dependent Factors in Drug Actions
In the mouse experiment, we picked one hour
after administering the drug to check for the
sleeping effect. Obviously, we would have had
to learn a bit about the time course of the drug’s
effect before picking one hour. Some very rapidly
acting drug might have put the mice to
on several groups of 20 mice each. Each group
will receive a different dose, and an hour later
we will check to see how many mice in each
group are sleeping. Let us assume that at the
lowest dose we tested, only 1 of the 20 mice
was asleep, and at the highest doses all were
asleep, with other values in between. By drawing
a line through these points, we can estimate
the dose required to put half of the mice to
sleep (the ED 50 or the effective dose for 50 percent…