NAPRX CNPR PHARMACEUTICAL SALES EXAM
SCRIPT 2026 COMPLETE QUESTIONS AND
SOLUTIONS
◉ Federal Trade Commission (FTC). Answer: Regulates general
business practices to protect consumers against anti-competitive
behavior and misleading claims
◉ Drug Enforcement Administration (DEA). Answer: Regulates the
distribution and use of narcotics and other controlled substances
◉ Antibodies. Answer: are proteins made by the body's immune system
to bind and to neutralize foreign invaders.
◉ Monoclonal Antibodies. Answer: antibodies used against breast
cancer and non-Hodkin's lymphoma, are created in laboratories to target
the immune system of patients to specifically kill cancer cells
◉ Passive Diffusion. Answer: Diffusion is the random movement of
molecules in fluid. Because of the lipid bilayer construction of the
membrane, non-polar (lipid soluble) molecules are able to diffuse and
penetrate the cell membrane. Polar molecules, however, cannot penetrate
,cell membrane readily via passive diffusion and rely on other transport
mechanisms.
◉ Facilitated Diffusion. Answer: Polar drug molecules have been
observed to cross cell membranes. The transport mechanism is via
carrier systems. Transmembrane carriers, such as proteins, are similar to
receptors and bind polar and non-polar drug molecules. They facilitate
the diffusion of drugs across the cell membrane. This diffusion is from a
region of high concentration to low concentration.
◉ Active Transport. Answer: the mechanism requires energy to drive the
transportation of drugs against the concentration gradients, from low to
high. The transportation rate is dependent on the availability of carriers
and energy supply via a number of biological pathways.
◉ Pinocytosis. Answer: involves the engulfing of fluids by a cell. The
process commences with the infolding of cell membrane around fluids
containing the drug. The membrane then fuses and forms a vesicle with
fluid core. In this way, the drug is taken into the cell interior within the
vesicle.
◉ First Pass Metabolism. Answer: Drug absorbed through the
gastrointestinal tract pass into the hepatic portal vein, which drains into
the liver. The liver metabolizes the drug, which leads to reduction in the
availability of the drug for interaction with receptors
,◉ Blood-brain barrier. Answer: Due to this, distribution of drugs to the
brain tissue is restricted for some types of drugs. The reason is that the
brain has a sheath of connective tissue cells, the astrocytes, surrounding
it, forming a barrier to passive diffusion for polar drugs. In addition, the
endothelial cells of the brain capillaries are joined more tightly together,
curtailing further the diffusion of polar drugs to the brain. Lipid soluble
drugs can diffuse into the brain more readily and bring forth their effects
◉ Placental barrier. Answer: this consists of several layers of cells
between the maternal and fetal circulatory systems. Diffusion of polar
drugs is limited: However, lipid-soluble drugs can pass through the
barrier. Fetuses are rich in lipids and may form a reservoir for
sequestering lipid soluble drugs
◉ Phase 1. Answer: these biochemical metabolism reactions include
oxidation, reduction and hydrolysis, which transforms the drugs into
metabolites. A family of enzymes called cytochrome P-450 is
responsible for these reactions.
◉ Phase II. Answer: these biochemical metabolism reactions involve the
addition or conjugation of subgroups, such as -OH, -NH and -SH to the
drug molecules. These reactions give rise to more polar molecules,
which are less lipid-soluble and are excreted from the body
◉ Expression of Clearance of a Drug. Answer: CL = Rate of drug
elimination/Drug concentration in the blood
, ◉ Single dose. Answer: This type of toxicity testing is conducted for
several purposed, including the determination of repeated doses,
identification of organ is subjected to toxicity, and provision of data for
starting doses in human clinical trials. Various characteristic of the
animals are monitored, including weights, clinical signs, organ
functions, biochemical parameters, and mortality. At the completion of
the study, animals are killed and autopsies are preformed to analyze the
organs, especially the targeted organ for the drug
◉ Repeated Dose. Answer: In this type of toxicity study the aim is to
evaluate the longer-term effects of the drug in animals. Plasma drug
concentrations are measured and pharmacokinetics analyses are
performed. Vital functions studied include cardiovascular, respiratory
and nervous systems. Animals are retained at the end of the study to
check toxicity recovery
◉ Carcinogenicity. Answer: type of study that is carried out to identify
the tumor-causing potential of a drug.
◉ Reproductive toxicology. Answer: The aim of these studies is to
assess the effect of the potential drug on mammalian reproduction
◉ MRSD. Answer: maximum recommended starting dose
◉ NOAEL. Answer: no observed adverse effect level
SCRIPT 2026 COMPLETE QUESTIONS AND
SOLUTIONS
◉ Federal Trade Commission (FTC). Answer: Regulates general
business practices to protect consumers against anti-competitive
behavior and misleading claims
◉ Drug Enforcement Administration (DEA). Answer: Regulates the
distribution and use of narcotics and other controlled substances
◉ Antibodies. Answer: are proteins made by the body's immune system
to bind and to neutralize foreign invaders.
◉ Monoclonal Antibodies. Answer: antibodies used against breast
cancer and non-Hodkin's lymphoma, are created in laboratories to target
the immune system of patients to specifically kill cancer cells
◉ Passive Diffusion. Answer: Diffusion is the random movement of
molecules in fluid. Because of the lipid bilayer construction of the
membrane, non-polar (lipid soluble) molecules are able to diffuse and
penetrate the cell membrane. Polar molecules, however, cannot penetrate
,cell membrane readily via passive diffusion and rely on other transport
mechanisms.
◉ Facilitated Diffusion. Answer: Polar drug molecules have been
observed to cross cell membranes. The transport mechanism is via
carrier systems. Transmembrane carriers, such as proteins, are similar to
receptors and bind polar and non-polar drug molecules. They facilitate
the diffusion of drugs across the cell membrane. This diffusion is from a
region of high concentration to low concentration.
◉ Active Transport. Answer: the mechanism requires energy to drive the
transportation of drugs against the concentration gradients, from low to
high. The transportation rate is dependent on the availability of carriers
and energy supply via a number of biological pathways.
◉ Pinocytosis. Answer: involves the engulfing of fluids by a cell. The
process commences with the infolding of cell membrane around fluids
containing the drug. The membrane then fuses and forms a vesicle with
fluid core. In this way, the drug is taken into the cell interior within the
vesicle.
◉ First Pass Metabolism. Answer: Drug absorbed through the
gastrointestinal tract pass into the hepatic portal vein, which drains into
the liver. The liver metabolizes the drug, which leads to reduction in the
availability of the drug for interaction with receptors
,◉ Blood-brain barrier. Answer: Due to this, distribution of drugs to the
brain tissue is restricted for some types of drugs. The reason is that the
brain has a sheath of connective tissue cells, the astrocytes, surrounding
it, forming a barrier to passive diffusion for polar drugs. In addition, the
endothelial cells of the brain capillaries are joined more tightly together,
curtailing further the diffusion of polar drugs to the brain. Lipid soluble
drugs can diffuse into the brain more readily and bring forth their effects
◉ Placental barrier. Answer: this consists of several layers of cells
between the maternal and fetal circulatory systems. Diffusion of polar
drugs is limited: However, lipid-soluble drugs can pass through the
barrier. Fetuses are rich in lipids and may form a reservoir for
sequestering lipid soluble drugs
◉ Phase 1. Answer: these biochemical metabolism reactions include
oxidation, reduction and hydrolysis, which transforms the drugs into
metabolites. A family of enzymes called cytochrome P-450 is
responsible for these reactions.
◉ Phase II. Answer: these biochemical metabolism reactions involve the
addition or conjugation of subgroups, such as -OH, -NH and -SH to the
drug molecules. These reactions give rise to more polar molecules,
which are less lipid-soluble and are excreted from the body
◉ Expression of Clearance of a Drug. Answer: CL = Rate of drug
elimination/Drug concentration in the blood
, ◉ Single dose. Answer: This type of toxicity testing is conducted for
several purposed, including the determination of repeated doses,
identification of organ is subjected to toxicity, and provision of data for
starting doses in human clinical trials. Various characteristic of the
animals are monitored, including weights, clinical signs, organ
functions, biochemical parameters, and mortality. At the completion of
the study, animals are killed and autopsies are preformed to analyze the
organs, especially the targeted organ for the drug
◉ Repeated Dose. Answer: In this type of toxicity study the aim is to
evaluate the longer-term effects of the drug in animals. Plasma drug
concentrations are measured and pharmacokinetics analyses are
performed. Vital functions studied include cardiovascular, respiratory
and nervous systems. Animals are retained at the end of the study to
check toxicity recovery
◉ Carcinogenicity. Answer: type of study that is carried out to identify
the tumor-causing potential of a drug.
◉ Reproductive toxicology. Answer: The aim of these studies is to
assess the effect of the potential drug on mammalian reproduction
◉ MRSD. Answer: maximum recommended starting dose
◉ NOAEL. Answer: no observed adverse effect level
