Drug can be considered as the Delivery vehicle.

Which of the following is the the process of movement of unchanged drug from the site of administration to systemic circulation?.

There always exist a correlation between the plasma concentration of a drug & the therapeutic response.

Absorption can also be defined as the process of movement of unchanged drug from __________ to __________.

Which transcellular pathway(s) DOES NOT require(s) chemical or biological energy? Select all that apply

Which of the following mechanisms mostly transport lipophilic small molecules?

Which of the following mechanisms transport Ions (Na+, K+, Ca2+, etc.)?

Which of the following mechanisms transport most small molecules, certain ions (Na+-K+ pump)?

Which of the following mechanisms transport mostly proteins, certain small molecules and small particles?

Which of the following statements is TRUE about Facilitated Diffusion?

Which of the following statements is TRUE about Active Transport?

Which of the following statements is TRUE about Transcytosis?

Which of the following statements is TRUE about Simple Diffusion?

C1 and C2 CAN be measured since these are values inside the membrane.

C1 and C2 cannot be measured since these are values inside the membrane.

By which of the following can C1 and C2 be calculated?  Select all that apply

K is used to represent the ratio between C1 and Cd, C2 and Cr.

The permeability coefficient (P) represents the inherent permeability of a membrane. The unit of P is length2/time.

The permeability coefficient (P) represents the inherent permeability of a membrane. The unit of P is length time.

The permeability coefficient (P) represents the inherent permeability of a membrane. The unit of P is length time.

Diffusion coefficients of most small molecules (Mol. Wts:100-500) are similar and the thickness of the membranes is also the same.

Which of the following are the major determinants of cell membrane permeability? Select all that apply

The lipophilicity or partition coefficient of the solute is a major determinant of cell membrane permeability.

Which of the following drugs belongs to BCS Class I? Select all that apply

Which of the following drugs belongs to BCS Class II? Select all that apply

Which of the following drugs belongs to BCS Class III? Select all that apply

Which of the following drugs belongs to BCS Class IV? Select all that apply

We can say Propranolol has a HIGH Solubility and HIGH Permeability.

We can say Piroxicam has a LOW Solubility and HIGH Permeability.

We can say Furosemide has a LOW Solubility and HIGH Permeability.

In most pharmaceutical systems, the concentration of drug in the receptor side (Cr) is significantly lower than at the donor side (Cd).

In most pharmaceutical systems, the concentration of drug in the donor side (Cd) is significantly lower than at the receptor side (Cr).

Naproxen, a non-steroidal anti-inflammatory drug (NSAID), is a biopharmaceutics classification system (BCS) class ______ drug.

In a diffusion cell, when Cr is near to zero or much lower than Cd, the condition is called sink condition.

Which of the following statements are TRUE about Sink Condition?

A zero-order rate process occurs when the rate is constant.

Which of the following statements are TRUE about this image or Zero-Order Process? Select all that apply

Release of drug from controlled release systems does not occur exclusively by zero-order process.

Lag-time effect is observed in systems that have been stored for a long time and the rate controlling membrane is pre-saturated with the drug. Is this statement.

The initial rapid release of the drug can be also considered as a burst effect from pre-saturated membranes.

Lag-time is observed in systems when they first contact the skin or mucosal tissue.

It is the time required by the drug to saturate the tissue before it is absorbed into the blood stream.

Lag-Time and Burst Effect are dependent on which of the following? Select all that apply

Is observed in systems that have been stored for a long time and the rate controlling membrane is pre-saturated with the drug.

We can say Lag-Time and Burst Effect are both dependent on the diffusion coefficient of the drug and the thickness of the membrane.

Most drugs are absorbed from gastrointestinal tract by a passive diffusion of unionized moiety across a lipid membrane.

Most drugs are absorbed from gastrointestinal tract by a facilitated diffusion of ionized moiety across a lipid membrane.

Which of the following determines determine the extent of drug absorption from solution?

The pKa of the drug and pH of the fluid at the absorption site determine the extent of drug absorption from solution.

How is it called to the interrelationship among the pKa of the drug and pH of the fluid at the absorption site?

Which of the following statements are TRUE about Moderately weak acids drugs? Select all that apply

Which of the following drugs are Ionized at all pH values and Poorly absorbed from GIT? Select all that apply

Which of the following drugs are Unionized at all pH values and Absorbed along entire length of GIT? Select all that apply

Which of the following statements are TRUE about Moderately weak bases

drugs? Select all that apply

Which of the following are the limitations of the pH-Partition Theory? Select all that apply