This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Distinguish between a drug's efficacy and its potency. What will be an ideal ... (Read 45 times)

lunatika

  • Hero Member
  • *****
  • Posts: 548
on: Jun 22, 2018
Distinguish between a drug's efficacy and its potency.
 
  What will be an ideal response?

Question 2

What is the blood brain barrier?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meganlapinski

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 22, 2018
Answer to Question 1

Efficacy refers to the degree to which a drug can activate receptors relative to the maximal response possible. Potency refers to the relative pharmacological activity of a compound or the relative ability of a drug to produce a given effect. Operationally, a drug's potency is determined by the plasma concentration of the drug (or the dose of the drug) necessary to produce a given effectthe lower the dose necessary to produce that effect or magnitude of effect, the more potent the drug

Answer to Question 2

The endothelial cells comprising the walls of the capillaries that supply blood to the brain are tightly packed together, with minimal pores between them. In addition, parts of glial cells may cover the outside of the capillaries. These comprise a lipid barrier through which non-lipid soluble drugs cannot pass, unless the molecules are compatible with transport proteins that can carry them across these membranes.


lunatika

  • Member
  • Posts: 548
Reply 2 on: Jun 22, 2018
Gracias!

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Mechanism of Anti-Cancer Drug Mechanism of Anti-Cancer Drug
Intradermal drug administration: (a) cross section of skin showing depth of needle insertion Source: Intradermal drug administration: (a) cross section of skin showing depth of needle insertion Source:
) Intradermal drug administration: (d) the needle is removed and the puncture site is covered with ) Intradermal drug administration: (d) the needle is removed and the puncture site is covered with
Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio
Enterohepatic recirculation of a drug can increase its half-life in the body and prolong its ... Enterohepatic recirculation of a drug can increase its half-life in the body and prolong its ...
The Therapeutic Range of a Drug The Therapeutic Range of a Drug
Video: Muscle Twitch and Muscle Tension - Motor unit size and force

For a complete list of videos, visit our video library