Why is lipid diffusion an important mechanism for drug absorption?
a. Many epithelial membranes must be crossed if a drug is to distribute in the body and reach its target organ.
b. Epithelial cells do not have lipid membranes, so a drug must be water-soluble to diffuse across such a membrane.
c. It is directly related to the proportion of a drug that reaches the systemic circulation.
d. Lipid diffusion has no importance in drug absorption because the body has very few epithelial membranes drugs must cross.
Question 2
A special case of synergism in which one drug has no effect but can increase the activity of another drug is known as
a. potency.
b. hypersensitivity.
c. potentiation.
d. additivity.
Absorption of light energy by an electron
Sliding filament mechanism of muscle contraction.
Intramuscular drug administration: (b) the administration site is prepped
The Three Names Given to a Drug
Drug Classification and Description of Use
Drug tolerance: A shift in the dose-response curve to the right as a result of exposure to the drug.